US20190065231A1 - Technologies for migrating virtual machines - Google Patents
Technologies for migrating virtual machines Download PDFInfo
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- US20190065231A1 US20190065231A1 US15/859,388 US201715859388A US2019065231A1 US 20190065231 A1 US20190065231 A1 US 20190065231A1 US 201715859388 A US201715859388 A US 201715859388A US 2019065231 A1 US2019065231 A1 US 2019065231A1
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Definitions
- Network operators and service providers typically rely on various network virtualization technologies to manage complex, large-scale computing environments, such as high-performance computing (HPC) and cloud computing environments.
- these computing environments, or data centers are comprised of a multitude of network computing devices (e.g., servers, switches, routers, etc.) which are configured to perform various operations (e.g., process network traffic through the data center, store data, perform computations, etc.).
- network computing devices e.g., servers, switches, routers, etc.
- operations e.g., process network traffic through the data center, store data, perform computations, etc.
- certain data center operations are typically run inside containers or virtual machines (VMs) in a virtualized environment of one or more of the network computing devices.
- VMs virtual machines
- a container or VM being executed on one network computing device needs to be migrated to another.
- container/VM migration can be a useful tool, the migrations typically require the copying of data (e.g., the container/VM requirements, the workload, the stored data associated with the workload, etc.) across the network between the network computing devices.
- the data copy typically introduces network traffic, resulting in bandwidth consumption that could otherwise be used for other operations.
- FIG. 1 is a simplified diagram of at least one embodiment of a data center for executing workloads with disaggregated resources
- FIG. 2 is a simplified diagram of at least one embodiment of a pod of the data center of FIG. 1 ;
- FIG. 3 is a perspective view of at least one embodiment of a rack that may be included in the pod of FIG. 2 ;
- FIG. 4 is a side plan elevation view of the rack of FIG. 3 ;
- FIG. 5 is a perspective view of the rack of FIG. 3 having a sled mounted therein;
- FIG. 6 is a is a simplified block diagram of at least one embodiment of a top side of the sled of FIG. 5 ;
- FIG. 7 is a simplified block diagram of at least one embodiment of a bottom side of the sled of FIG. 6 ;
- FIG. 8 is a simplified block diagram of at least one embodiment of a compute sled usable in the data center of FIG. 1 ;
- FIG. 9 is a top perspective view of at least one embodiment of the compute sled of FIG. 8 ;
- FIG. 10 is a simplified block diagram of at least one embodiment of an accelerator sled usable in the data center of FIG. 1 ;
- FIG. 11 is a top perspective view of at least one embodiment of the accelerator sled of FIG. 10 ;
- FIG. 12 is a simplified block diagram of at least one embodiment of a storage sled usable in the data center of FIG. 1 ;
- FIG. 13 is a top perspective view of at least one embodiment of the storage sled of FIG. 12 ;
- FIG. 14 is a simplified block diagram of at least one embodiment of a memory sled usable in the data center of FIG. 1 ;
- FIG. 15 is a simplified block diagram of a system that may be established within the data center of FIG. 1 to execute workloads with managed nodes composed of disaggregated resources.
- FIG. 16 is a simplified block diagram of at least one embodiment of a system for migrating virtual machines which includes multiple compute sleds, a memory sled, and a resource manager server;
- FIG. 17 is a simplified block diagram of at least one embodiment of the resource manager server of the system of FIG. 16 ;
- FIG. 18 is a simplified block diagram of at least one embodiment of one of the compute sleds of the system of FIG. 16 ;
- FIG. 19 is a simplified block diagram of at least one embodiment of an environment that may be established by the resource manager server of FIGS. 16 and 17 ;
- FIG. 20 is a simplified flow diagram of at least one embodiment of a method for creating a virtual machine instance that may be performed by the resource manager server of FIGS. 16, 17, and 19 ;
- FIG. 21 is a simplified flow diagram of at least one embodiment of a method for migrating a virtual machine instance that may be performed by the resource manager server of FIGS. 16, 17, and 19 .
- references in the specification to “one embodiment,” “an embodiment,” “an illustrative embodiment,” etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may or may not necessarily include that particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
- items included in a list in the form of “at least one A, B, and C” can mean (A); (B); (C); (A and B); (A and C); (B and C); or (A, B, and C).
- items listed in the form of “at least one of A, B, or C” can mean (A); (B); (C); (A and B); (A and C); (B and C); or (A, B, and C).
- the disclosed embodiments may be implemented, in some cases, in hardware, firmware, software, or any combination thereof.
- the disclosed embodiments may also be implemented as instructions carried by or stored on a transitory or non-transitory machine-readable (e.g., computer-readable) storage medium, which may be read and executed by one or more processors.
- a machine-readable storage medium may be embodied as any storage device, mechanism, or other physical structure for storing or transmitting information in a form readable by a machine (e.g., a volatile or non-volatile memory, a media disc, or other media device).
- a data center 100 in which disaggregated resources may cooperatively execute one or more workloads includes multiple pods 110 , 120 , 130 , 140 , each of which includes one or more rows of racks.
- each rack houses multiple sleds, which each may be embodied as a compute device, such as a server, that is primarily equipped with a particular type of resource (e.g., memory devices, data storage devices, accelerator devices, general purpose processors).
- the sleds in each pod 110 , 120 , 130 , 140 are connected to multiple pod switches (e.g., switches that route data communications to and from sleds within the pod).
- the pod switches connect with spine switches 150 that switch communications among pods (e.g., the pods 110 , 120 , 130 , 140 ) in the data center 100 .
- the sleds may be connected with a fabric using Intel Omni-Path technology.
- resources within sleds in the data center 100 may be allocated to a group (referred to herein as a “managed node”) containing resources from one or more other sleds to be collectively utilized in the execution of a workload.
- the workload can execute as if the resources belonging to the managed node were located on the same sled.
- the resources in a managed node may even belong to sleds belonging to different racks, and even to different pods 110 , 120 , 130 , 140 .
- Some resources of a single sled may be allocated to one managed node while other resources of the same sled are allocated to a different managed node (e.g., one processor assigned to one managed node and another processor of the same sled assigned to a different managed node).
- the data center 100 By disaggregating resources to sleds comprised predominantly of a single type of resource (e.g., compute sleds comprising primarily compute resources, memory sleds containing primarily memory resources), and selectively allocating and deallocating the disaggregated resources to form a managed node assigned to execute a workload, the data center 100 provides more efficient resource usage over typical data centers comprised of hyperconverged servers containing compute, memory, storage and perhaps additional resources). As such, the data center 100 may provide greater performance (e.g., throughput, operations per second, latency, etc.) than a typical data center that has the same number of resources.
- compute sleds comprising primarily compute resources
- the data center 100 may provide greater performance (e.g., throughput, operations per second, latency, etc.) than a typical data center that has the same number of resources.
- the pod 110 in the illustrative embodiment, includes a set of rows 200 , 210 , 220 , 230 of racks 240 .
- Each rack 240 may house multiple sleds (e.g., sixteen sleds) and provide power and data connections to the housed sleds, as described in more detail herein.
- the racks in each row 200 , 210 , 220 , 230 are connected to multiple pod switches 250 , 260 .
- the pod switch 250 includes a set of ports 252 to which the sleds of the racks of the pod 110 are connected and another set of ports 254 that connect the pod 110 to the spine switches 150 to provide connectivity to other pods in the data center 100 .
- the pod switch 260 includes a set of ports 262 to which the sleds of the racks of the pod 110 are connected and a set of ports 264 that connect the pod 110 to the spine switches 150 . As such, the use of the pair of switches 250 , 260 provides an amount of redundancy to the pod 110 .
- the switches 150 , 250 , 260 may be embodied as dual-mode optical switches, capable of routing both Ethernet protocol communications carrying Internet Protocol (IP) packets and communications according to a second, high-performance link-layer protocol (e.g., Intel's Omni-Path Architecture's, Infiniband) via optical signaling media of an optical fabric.
- IP Internet Protocol
- a second, high-performance link-layer protocol e.g., Intel's Omni-Path Architecture's, Infiniband
- each of the other pods 120 , 130 , 140 may be similarly structured as, and have components similar to, the pod 110 shown in and described in regard to FIG. 2 (e.g., each pod may have rows of racks housing multiple sleds as described above). Additionally, while two pod switches 250 , 260 are shown, it should be understood that in other embodiments, each pod 110 , 120 , 130 , 140 may be connected to different number of pod switches (e.g., providing even more failover capacity).
- each illustrative rack 240 of the data center 100 includes two elongated support posts 302 , 304 , which are arranged vertically.
- the elongated support posts 302 , 304 may extend upwardly from a floor of the data center 100 when deployed.
- the rack 240 also includes one or more horizontal pairs 310 of elongated support arms 312 (identified in FIG. 3 via a dashed ellipse) configured to support a sled of the data center 100 as discussed below.
- One elongated support arm 312 of the pair of elongated support arms 312 extends outwardly from the elongated support post 302 and the other elongated support arm 312 extends outwardly from the elongated support post 304 .
- each sled of the data center 100 is embodied as a chassis-less sled. That is, each sled has a chassis-less circuit board substrate on which physical resources (e.g., processors, memory, accelerators, storage, etc.) are mounted as discussed in more detail below.
- the rack 240 is configured to receive the chassis-less sleds.
- each pair 310 of elongated support arms 312 defines a sled slot 320 of the rack 240 , which is configured to receive a corresponding chassis-less sled.
- each illustrative elongated support arm 312 includes a circuit board guide 330 configured to receive the chassis-less circuit board substrate of the sled.
- Each circuit board guide 330 is secured to, or otherwise mounted to, a top side 332 of the corresponding elongated support arm 312 .
- each circuit board guide 330 is mounted at a distal end of the corresponding elongated support arm 312 relative to the corresponding elongated support post 302 , 304 .
- not every circuit board guide 330 may be referenced in each Figure.
- Each circuit board guide 330 includes an inner wall that defines a circuit board slot 380 configured to receive the chassis-less circuit board substrate of a sled 400 when the sled 400 is received in the corresponding sled slot 320 of the rack 240 .
- a user aligns the chassis-less circuit board substrate of an illustrative chassis-less sled 400 to a sled slot 320 .
- the user, or robot may then slide the chassis-less circuit board substrate forward into the sled slot 320 such that each side edge 414 of the chassis-less circuit board substrate is received in a corresponding circuit board slot 380 of the circuit board guides 330 of the pair 310 of elongated support arms 312 that define the corresponding sled slot 320 as shown in FIG. 4 .
- each type of resource can be upgraded independently of each other and at their own optimized refresh rate.
- the sleds are configured to blindly mate with power and data communication cables in each rack 240 , enhancing their ability to be quickly removed, upgraded, reinstalled, and/or replaced.
- the data center 100 may operate (e.g., execute workloads, undergo maintenance and/or upgrades, etc.) without human involvement on the data center floor.
- a human may facilitate one or more maintenance or upgrade operations in the data center 100 .
- each circuit board guide 330 is dual sided. That is, each circuit board guide 330 includes an inner wall that defines a circuit board slot 380 on each side of the circuit board guide 330 . In this way, each circuit board guide 330 can support a chassis-less circuit board substrate on either side. As such, a single additional elongated support post may be added to the rack 240 to turn the rack 240 into a two-rack solution that can hold twice as many sled slots 320 as shown in FIG. 3 .
- the illustrative rack 240 includes seven pairs 310 of elongated support arms 312 that define a corresponding seven sled slots 320 , each configured to receive and support a corresponding sled 400 as discussed above.
- the rack 240 may include additional or fewer pairs 310 of elongated support arms 312 (i.e., additional or fewer sled slots 320 ). It should be appreciated that because the sled 400 is chassis-less, the sled 400 may have an overall height that is different than typical servers. As such, in some embodiments, the height of each sled slot 320 may be shorter than the height of a typical server (e.g., shorter than a single rank unit, “1 U”).
- each of the elongated support posts 302 , 304 may have a length of six feet or less.
- the rack 240 may have different dimensions.
- the rack 240 does not include any walls, enclosures, or the like. Rather, the rack 240 is an enclosure-less rack that is opened to the local environment.
- an end plate may be attached to one of the elongated support posts 302 , 304 in those situations in which the rack 240 forms an end-of-row rack in the data center 100 .
- each elongated support post 302 , 304 includes an inner wall that defines an inner chamber in which the interconnect may be located.
- the interconnects routed through the elongated support posts 302 , 304 may be embodied as any type of interconnects including, but not limited to, data or communication interconnects to provide communication connections to each sled slot 320 , power interconnects to provide power to each sled slot 320 , and/or other types of interconnects.
- the rack 240 in the illustrative embodiment, includes a support platform on which a corresponding optical data connector (not shown) is mounted.
- Each optical data connector is associated with a corresponding sled slot 320 and is configured to mate with an optical data connector of a corresponding sled 400 when the sled 400 is received in the corresponding sled slot 320 .
- optical connections between components (e.g., sleds, racks, and switches) in the data center 100 are made with a blind mate optical connection.
- a door on each cable may prevent dust from contaminating the fiber inside the cable.
- the door is pushed open when the end of the cable enters the connector mechanism. Subsequently, the optical fiber inside the cable enters a gel within the connector mechanism and the optical fiber of one cable comes into contact with the optical fiber of another cable within the gel inside the connector mechanism.
- the illustrative rack 240 also includes a fan array 370 coupled to the cross-support arms of the rack 240 .
- the fan array 370 includes one or more rows of cooling fans 372 , which are aligned in a horizontal line between the elongated support posts 302 , 304 .
- the fan array 370 includes a row of cooling fans 372 for each sled slot 320 of the rack 240 .
- each sled 400 does not include any on-board cooling system in the illustrative embodiment and, as such, the fan array 370 provides cooling for each sled 400 received in the rack 240 .
- Each rack 240 also includes a power supply associated with each sled slot 320 .
- Each power supply is secured to one of the elongated support arms 312 of the pair 310 of elongated support arms 312 that define the corresponding sled slot 320 .
- the rack 240 may include a power supply coupled or secured to each elongated support arm 312 extending from the elongated support post 302 .
- Each power supply includes a power connector configured to mate with a power connector of the sled 400 when the sled 400 is received in the corresponding sled slot 320 .
- the sled 400 does not include any on-board power supply and, as such, the power supplies provided in the rack 240 supply power to corresponding sleds 400 when mounted to the rack 240 .
- each sled 400 in the illustrative embodiment, is configured to be mounted in a corresponding rack 240 of the data center 100 as discussed above.
- each sled 400 may be optimized or otherwise configured for performing particular tasks, such as compute tasks, acceleration tasks, data storage tasks, etc.
- the sled 400 may be embodied as a compute sled 800 as discussed below in regard to FIGS. 8-9 , an accelerator sled 1000 as discussed below in regard to FIGS. 10-11 , a storage sled 1200 as discussed below in regard to FIGS. 12-13 , or as a sled optimized or otherwise configured to perform other specialized tasks, such as a memory sled 1400 , discussed below in regard to FIG. 14 .
- the illustrative sled 400 includes a chassis-less circuit board substrate 602 , which supports various physical resources (e.g., electrical components) mounted thereon.
- the circuit board substrate 602 is “chassis-less” in that the sled 400 does not include a housing or enclosure. Rather, the chassis-less circuit board substrate 602 is open to the local environment.
- the chassis-less circuit board substrate 602 may be formed from any material capable of supporting the various electrical components mounted thereon.
- the chassis-less circuit board substrate 602 is formed from an FR-4 glass-reinforced epoxy laminate material. Of course, other materials may be used to form the chassis-less circuit board substrate 602 in other embodiments.
- the chassis-less circuit board substrate 602 includes multiple features that improve the thermal cooling characteristics of the various electrical components mounted on the chassis-less circuit board substrate 602 .
- the chassis-less circuit board substrate 602 does not include a housing or enclosure, which may improve the airflow over the electrical components of the sled 400 by reducing those structures that may inhibit air flow.
- the chassis-less circuit board substrate 602 is not positioned in an individual housing or enclosure, there is no backplane (e.g., a backplate of the chassis) to the chassis-less circuit board substrate 602 , which could inhibit air flow across the electrical components.
- the chassis-less circuit board substrate 602 has a geometric shape configured to reduce the length of the airflow path across the electrical components mounted to the chassis-less circuit board substrate 602 .
- the illustrative chassis-less circuit board substrate 602 has a width 604 that is greater than a depth 606 of the chassis-less circuit board substrate 602 .
- the chassis-less circuit board substrate 602 has a width of about 21 inches and a depth of about 9 inches, compared to a typical server that has a width of about 17 inches and a depth of about 39 inches.
- an airflow path 608 that extends from a front edge 610 of the chassis-less circuit board substrate 602 toward a rear edge 612 has a shorter distance relative to typical servers, which may improve the thermal cooling characteristics of the sled 400 .
- the various physical resources mounted to the chassis-less circuit board substrate 602 are mounted in corresponding locations such that no two substantively heat-producing electrical components shadow each other as discussed in more detail below.
- no two electrical components which produce appreciable heat during operation (i.e., greater than a nominal heat sufficient enough to adversely impact the cooling of another electrical component), are mounted to the chassis-less circuit board substrate 602 linearly in-line with each other along the direction of the airflow path 608 (i.e., along a direction extending from the front edge 610 toward the rear edge 612 of the chassis-less circuit board substrate 602 ).
- the illustrative sled 400 includes one or more physical resources 620 mounted to a top side 650 of the chassis-less circuit board substrate 602 .
- the physical resources 620 may be embodied as any type of processor, controller, or other compute circuit capable of performing various tasks such as compute functions and/or controlling the functions of the sled 400 depending on, for example, the type or intended functionality of the sled 400 .
- the physical resources 620 may be embodied as high-performance processors in embodiments in which the sled 400 is embodied as a compute sled, as accelerator co-processors or circuits in embodiments in which the sled 400 is embodied as an accelerator sled, storage controllers in embodiments in which the sled 400 is embodied as a storage sled, or a set of memory devices in embodiments in which the sled 400 is embodied as a memory sled.
- the sled 400 also includes one or more additional physical resources 630 mounted to the top side 650 of the chassis-less circuit board substrate 602 .
- the additional physical resources include a network interface controller (NIC) as discussed in more detail below.
- NIC network interface controller
- the physical resources 630 may include additional or other electrical components, circuits, and/or devices in other embodiments.
- the physical resources 620 are communicatively coupled to the physical resources 630 via an input/output (I/O) subsystem 622 .
- the I/O subsystem 622 may be embodied as circuitry and/or components to facilitate input/output operations with the physical resources 620 , the physical resources 630 , and/or other components of the sled 400 .
- the I/O subsystem 622 may be embodied as, or otherwise include, memory controller hubs, input/output control hubs, integrated sensor hubs, firmware devices, communication links (e.g., point-to-point links, bus links, wires, cables, light guides, printed circuit board traces, etc.), and/or other components and subsystems to facilitate the input/output operations.
- the I/O subsystem 622 is embodied as, or otherwise includes, a double data rate 4 (DDR4) data bus or a DDR5 data bus.
- DDR4 double data rate 4
- the sled 400 may also include a resource-to-resource interconnect 624 .
- the resource-to-resource interconnect 624 may be embodied as any type of communication interconnect capable of facilitating resource-to-resource communications.
- the resource-to-resource interconnect 624 is embodied as a high-speed point-to-point interconnect (e.g., faster than the I/O subsystem 622 ).
- the resource-to-resource interconnect 624 may be embodied as a QuickPath Interconnect (QPI), an UltraPath Interconnect (UPI), or other high-speed point-to-point interconnect dedicated to resource-to-resource communications.
- QPI QuickPath Interconnect
- UPI UltraPath Interconnect
- the sled 400 also includes a power connector 640 configured to mate with a corresponding power connector of the rack 240 when the sled 400 is mounted in the corresponding rack 240 .
- the sled 400 receives power from a power supply of the rack 240 via the power connector 640 to supply power to the various electrical components of the sled 400 . That is, the sled 400 does not include any local power supply (i.e., an on-board power supply) to provide power to the electrical components of the sled 400 .
- the exclusion of a local or on-board power supply facilitates the reduction in the overall footprint of the chassis-less circuit board substrate 602 , which may increase the thermal cooling characteristics of the various electrical components mounted on the chassis-less circuit board substrate 602 as discussed above.
- power is provided to the processors 820 through vias directly under the processors 820 (e.g., through the bottom side 750 of the chassis-less circuit board substrate 602 ), providing an increased thermal budget, additional current and/or voltage, and better voltage control over typical boards.
- the sled 400 may also include mounting features 642 configured to mate with a mounting arm, or other structure, of a robot to facilitate the placement of the sled 600 in a rack 240 by the robot.
- the mounting features 642 may be embodied as any type of physical structures that allow the robot to grasp the sled 400 without damaging the chassis-less circuit board substrate 602 or the electrical components mounted thereto.
- the mounting features 642 may be embodied as non-conductive pads attached to the chassis-less circuit board substrate 602 .
- the mounting features may be embodied as brackets, braces, or other similar structures attached to the chassis-less circuit board substrate 602 .
- the particular number, shape, size, and/or make-up of the mounting feature 642 may depend on the design of the robot configured to manage the sled 400 .
- the sled 400 in addition to the physical resources 630 mounted on the top side 650 of the chassis-less circuit board substrate 602 , the sled 400 also includes one or more memory devices 720 mounted to a bottom side 750 of the chassis-less circuit board substrate 602 . That is, the chassis-less circuit board substrate 602 is embodied as a double-sided circuit board.
- the physical resources 620 are communicatively coupled to the memory devices 720 via the I/O subsystem 622 .
- the physical resources 620 and the memory devices 720 may be communicatively coupled by one or more vias extending through the chassis-less circuit board substrate 602 .
- Each physical resource 620 may be communicatively coupled to a different set of one or more memory devices 720 in some embodiments. Alternatively, in other embodiments, each physical resource 620 may be communicatively coupled to each memory devices 720 .
- the memory devices 720 may be embodied as any type of memory device capable of storing data for the physical resources 620 during operation of the sled 400 , such as any type of volatile (e.g., dynamic random access memory (DRAM), etc.) or non-volatile memory.
- Volatile memory may be a storage medium that requires power to maintain the state of data stored by the medium.
- Non-limiting examples of volatile memory may include various types of random access memory (RAM), such as dynamic random access memory (DRAM) or static random access memory (SRAM).
- RAM random access memory
- DRAM dynamic random access memory
- SRAM static random access memory
- SDRAM synchronous dynamic random access memory
- DRAM of a memory component may comply with a standard promulgated by JEDEC, such as JESD79F for DDR SDRAM, JESD79-2F for DDR2 SDRAM, JESD79-3F for DDR3 SDRAM, JESD79-4A for DDR4 SDRAM, JESD209 for Low Power DDR (LPDDR), JESD209-2 for LPDDR2, JESD209-3 for LPDDR3, and JESD209-4 for LPDDR4 (these standards are available at www.jedec.org).
- LPDDR Low Power DDR
- Such standards may be referred to as DDR-based standards and communication interfaces of the storage devices that implement such standards may be referred to as DDR-based interfaces.
- the memory device is a block addressable memory device, such as those based on NAND or NOR technologies.
- a memory device may also include next-generation nonvolatile devices, such as Intel 3D XPointTM memory or other byte addressable write-in-place nonvolatile memory devices.
- the memory device may be or may include memory devices that use chalcogenide glass, multi-threshold level NAND flash memory, NOR flash memory, single or multi-level Phase Change Memory (PCM), a resistive memory, nanowire memory, ferroelectric transistor random access memory (FeTRAM), anti-ferroelectric memory, magnetoresistive random access memory (MRAM) memory that incorporates memristor technology, resistive memory including the metal oxide base, the oxygen vacancy base and the conductive bridge Random Access Memory (CB-RAM), or spin transfer torque (STT)-MRAM, a spintronic magnetic junction memory based device, a magnetic tunneling junction (MTJ) based device, a DW (Domain Wall) and SOT (Spin Orbit Transfer) based device, a thyristor based memory device, or a combination of any of the above, or other memory.
- PCM Phase Change Memory
- MRAM magnetoresistive random access memory
- MRAM magnetoresistive random access memory
- STT spin transfer torque
- the memory device may refer to the die itself and/or to a packaged memory product.
- the memory device may comprise a transistor-less stackable cross point architecture in which memory cells sit at the intersection of word lines and bit lines and are individually addressable and in which bit storage is based on a change in bulk resistance.
- the sled 400 may be embodied as a compute sled 800 .
- the compute sled 800 is optimized, or otherwise configured, to perform compute tasks.
- the compute sled 800 may rely on other sleds, such as acceleration sleds and/or storage sleds, to perform such compute tasks.
- the compute sled 800 includes various physical resources (e.g., electrical components) similar to the physical resources of the sled 400 , which have been identified in FIG. 8 using the same reference numbers.
- the description of such components provided above in regard to FIGS. 6 and 7 applies to the corresponding components of the compute sled 800 and is not repeated herein for clarity of the description of the compute sled 800 .
- the physical resources 620 are embodied as processors 820 . Although only two processors 820 are shown in FIG. 8 , it should be appreciated that the compute sled 800 may include additional processors 820 in other embodiments.
- the processors 820 are embodied as high-performance processors 820 and may be configured to operate at a relatively high power rating. Although the processors 820 generate additional heat operating at power ratings greater than typical processors (which operate at around 155-230 W), the enhanced thermal cooling characteristics of the chassis-less circuit board substrate 602 discussed above facilitate the higher power operation.
- the processors 820 are configured to operate at a power rating of at least 250 W. In some embodiments, the processors 820 may be configured to operate at a power rating of at least 350 W.
- the compute sled 800 may also include a processor-to-processor interconnect 842 .
- the processor-to-processor interconnect 842 may be embodied as any type of communication interconnect capable of facilitating processor-to-processor interconnect 842 communications.
- the processor-to-processor interconnect 842 is embodied as a high-speed point-to-point interconnect (e.g., faster than the I/O subsystem 622 ).
- processor-to-processor interconnect 842 may be embodied as a QuickPath Interconnect (QPI), an UltraPath Interconnect (UPI), or other high-speed point-to-point interconnect dedicated to processor-to-processor communications.
- QPI QuickPath Interconnect
- UPI UltraPath Interconnect
- point-to-point interconnect dedicated to processor-to-processor communications.
- the compute sled 800 also includes a communication circuit 830 .
- the illustrative communication circuit 830 includes a network interface controller (NIC) 832 , which may also be referred to as a host fabric interface (HFI).
- NIC network interface controller
- HFI host fabric interface
- the NIC 832 may be embodied as, or otherwise include, any type of integrated circuit, discrete circuits, controller chips, chipsets, add-in-boards, daughtercards, network interface cards, other devices that may be used by the compute sled 800 to connect with another compute device (e.g., with other sleds 400 ).
- the NIC 832 may be embodied as part of a system-on-a-chip (SoC) that includes one or more processors, or included on a multichip package that also contains one or more processors.
- the NIC 832 may include a local processor (not shown) and/or a local memory (not shown) that are both local to the NIC 832 .
- the local processor of the NIC 832 may be capable of performing one or more of the functions of the processors 820 .
- the local memory of the NIC 832 may be integrated into one or more components of the compute sled at the board level, socket level, chip level, and/or other levels.
- the communication circuit 830 is communicatively coupled to an optical data connector 834 .
- the optical data connector 834 is configured to mate with a corresponding optical data connector of the rack 240 when the compute sled 800 is mounted in the rack 240 .
- the optical data connector 834 includes a plurality of optical fibers which lead from a mating surface of the optical data connector 834 to an optical transceiver 836 .
- the optical transceiver 836 is configured to convert incoming optical signals from the rack-side optical data connector to electrical signals and to convert electrical signals to outgoing optical signals to the rack-side optical data connector.
- the optical transceiver 836 may form a portion of the communication circuit 830 in other embodiments.
- the compute sled 800 may also include an expansion connector 840 .
- the expansion connector 840 is configured to mate with a corresponding connector of an expansion chassis-less circuit board substrate to provide additional physical resources to the compute sled 800 .
- the additional physical resources may be used, for example, by the processors 820 during operation of the compute sled 800 .
- the expansion chassis-less circuit board substrate may be substantially similar to the chassis-less circuit board substrate 602 discussed above and may include various electrical components mounted thereto. The particular electrical components mounted to the expansion chassis-less circuit board substrate may depend on the intended functionality of the expansion chassis-less circuit board substrate.
- the expansion chassis-less circuit board substrate may provide additional compute resources, memory resources, and/or storage resources.
- the additional physical resources of the expansion chassis-less circuit board substrate may include, but is not limited to, processors, memory devices, storage devices, and/or accelerator circuits including, for example, field programmable gate arrays (FPGA), application-specific integrated circuits (ASICs), security co-processors, graphics processing units (GPUs), machine learning circuits, or other specialized processors, controllers, devices, and/or circuits.
- processors memory devices, storage devices, and/or accelerator circuits including, for example, field programmable gate arrays (FPGA), application-specific integrated circuits (ASICs), security co-processors, graphics processing units (GPUs), machine learning circuits, or other specialized processors, controllers, devices, and/or circuits.
- FPGA field programmable gate arrays
- ASICs application-specific integrated circuits
- security co-processors graphics processing units (GPUs)
- GPUs graphics processing units
- machine learning circuits or other specialized processors, controllers, devices, and/or circuits.
- the processors 820 , communication circuit 830 , and optical data connector 834 are mounted to the top side 650 of the chassis-less circuit board substrate 602 .
- Any suitable attachment or mounting technology may be used to mount the physical resources of the compute sled 800 to the chassis-less circuit board substrate 602 .
- the various physical resources may be mounted in corresponding sockets (e.g., a processor socket), holders, or brackets.
- some of the electrical components may be directly mounted to the chassis-less circuit board substrate 602 via soldering or similar techniques.
- the individual processors 820 and communication circuit 830 are mounted to the top side 650 of the chassis-less circuit board substrate 602 such that no two heat-producing, electrical components shadow each other.
- the processors 820 and communication circuit 830 are mounted in corresponding locations on the top side 650 of the chassis-less circuit board substrate 602 such that no two of those physical resources are linearly in-line with others along the direction of the airflow path 608 .
- the optical data connector 834 is in-line with the communication circuit 830 , the optical data connector 834 produces no or nominal heat during operation.
- the memory devices 720 of the compute sled 800 are mounted to the bottom side 750 of the of the chassis-less circuit board substrate 602 as discussed above in regard to the sled 400 . Although mounted to the bottom side 750 , the memory devices 720 are communicatively coupled to the processors 820 located on the top side 650 via the I/O subsystem 622 . Because the chassis-less circuit board substrate 602 is embodied as a double-sided circuit board, the memory devices 720 and the processors 820 may be communicatively coupled by one or more vias, connectors, or other mechanisms extending through the chassis-less circuit board substrate 602 . Of course, each processor 820 may be communicatively coupled to a different set of one or more memory devices 720 in some embodiments.
- each processor 820 may be communicatively coupled to each memory device 720 .
- the memory devices 720 may be mounted to one or more memory mezzanines on the bottom side of the chassis-less circuit board substrate 602 and may interconnect with a corresponding processor 820 through a ball-grid array.
- Each of the processors 820 includes a heatsink 850 secured thereto. Due to the mounting of the memory devices 720 to the bottom side 750 of the chassis-less circuit board substrate 602 (as well as the vertical spacing of the sleds 400 in the corresponding rack 240 ), the top side 650 of the chassis-less circuit board substrate 602 includes additional “free” area or space that facilitates the use of heatsinks 850 having a larger size relative to traditional heatsinks used in typical servers. Additionally, due to the improved thermal cooling characteristics of the chassis-less circuit board substrate 602 , none of the processor heatsinks 850 include cooling fans attached thereto. That is, each of the heatsinks 850 is embodied as a fan-less heatsinks.
- the sled 400 may be embodied as an accelerator sled 1000 .
- the accelerator sled 1000 is optimized, or otherwise configured, to perform specialized compute tasks, such as machine learning, encryption, hashing, or other computational-intensive task.
- a compute sled 800 may offload tasks to the accelerator sled 1000 during operation.
- the accelerator sled 1000 includes various components similar to components of the sled 400 and/or compute sled 800 , which have been identified in FIG. 10 using the same reference numbers. The description of such components provided above in regard to FIGS. 6, 7, and 8 apply to the corresponding components of the accelerator sled 1000 and is not repeated herein for clarity of the description of the accelerator sled 1000 .
- the physical resources 620 are embodied as accelerator circuits 1020 .
- the accelerator sled 1000 may include additional accelerator circuits 1020 in other embodiments.
- the accelerator sled 1000 may include four accelerator circuits 1020 in some embodiments.
- the accelerator circuits 1020 may be embodied as any type of processor, co-processor, compute circuit, or other device capable of performing compute or processing operations.
- the accelerator circuits 1020 may be embodied as, for example, field programmable gate arrays (FPGA), application-specific integrated circuits (ASICs), security co-processors, graphics processing units (GPUs), machine learning circuits, or other specialized processors, controllers, devices, and/or circuits.
- FPGA field programmable gate arrays
- ASICs application-specific integrated circuits
- GPUs graphics processing units
- machine learning circuits or other specialized processors, controllers, devices, and/or circuits.
- the accelerator sled 1000 may also include an accelerator-to-accelerator interconnect 1042 . Similar to the resource-to-resource interconnect 624 of the sled 600 discussed above, the accelerator-to-accelerator interconnect 1042 may be embodied as any type of communication interconnect capable of facilitating accelerator-to-accelerator communications. In the illustrative embodiment, the accelerator-to-accelerator interconnect 1042 is embodied as a high-speed point-to-point interconnect (e.g., faster than the I/O subsystem 622 ).
- the accelerator-to-accelerator interconnect 1042 may be embodied as a QuickPath Interconnect (QPI), an UltraPath Interconnect (UPI), or other high-speed point-to-point interconnect dedicated to processor-to-processor communications.
- the accelerator circuits 1020 may be daisy-chained with a primary accelerator circuit 1020 connected to the NIC 832 and memory 720 through the I/O subsystem 622 and a secondary accelerator circuit 1020 connected to the NIC 832 and memory 720 through a primary accelerator circuit 1020 .
- FIG. 11 an illustrative embodiment of the accelerator sled 1000 is shown.
- the accelerator circuits 1020 , communication circuit 830 , and optical data connector 834 are mounted to the top side 650 of the chassis-less circuit board substrate 602 .
- the individual accelerator circuits 1020 and communication circuit 830 are mounted to the top side 650 of the chassis-less circuit board substrate 602 such that no two heat-producing, electrical components shadow each other as discussed above.
- the memory devices 720 of the accelerator sled 1000 are mounted to the bottom side 750 of the of the chassis-less circuit board substrate 602 as discussed above in regard to the sled 600 .
- each of the accelerator circuits 1020 may include a heatsink 1070 that is larger than a traditional heatsink used in a server. As discussed above with reference to the heatsinks 870 , the heatsinks 1070 may be larger than tradition heatsinks because of the “free” area provided by the memory devices 750 being located on the bottom side 750 of the chassis-less circuit board substrate 602 rather than on the top side 650 .
- the sled 400 may be embodied as a storage sled 1200 .
- the storage sled 1200 is optimized, or otherwise configured, to store data in a data storage 1250 local to the storage sled 1200 .
- a compute sled 800 or an accelerator sled 1000 may store and retrieve data from the data storage 1250 of the storage sled 1200 .
- the storage sled 1200 includes various components similar to components of the sled 400 and/or the compute sled 800 , which have been identified in FIG. 12 using the same reference numbers. The description of such components provided above in regard to FIGS. 6, 7 , and 8 apply to the corresponding components of the storage sled 1200 and is not repeated herein for clarity of the description of the storage sled 1200 .
- the physical resources 620 are embodied as storage controllers 1220 . Although only two storage controllers 1220 are shown in FIG. 12 , it should be appreciated that the storage sled 1200 may include additional storage controllers 1220 in other embodiments.
- the storage controllers 1220 may be embodied as any type of processor, controller, or control circuit capable of controlling the storage and retrieval of data into the data storage 1250 based on requests received via the communication circuit 830 .
- the storage controllers 1220 are embodied as relatively low-power processors or controllers.
- the storage controllers 1220 may be configured to operate at a power rating of about 75 watts.
- the storage sled 1200 may also include a controller-to-controller interconnect 1242 .
- the controller-to-controller interconnect 1242 may be embodied as any type of communication interconnect capable of facilitating controller-to-controller communications.
- the controller-to-controller interconnect 1242 is embodied as a high-speed point-to-point interconnect (e.g., faster than the I/O subsystem 622 ).
- controller-to-controller interconnect 1242 may be embodied as a QuickPath Interconnect (QPI), an UltraPath Interconnect (UPI), or other high-speed point-to-point interconnect dedicated to processor-to-processor communications.
- QPI QuickPath Interconnect
- UPI UltraPath Interconnect
- point-to-point interconnect dedicated to processor-to-processor communications.
- the data storage 1250 is embodied as, or otherwise includes, a storage cage 1252 configured to house one or more solid state drives (SSDs) 1254 .
- the storage cage 1252 includes a number of mounting slots 1256 , each of which is configured to receive a corresponding solid state drive 1254 .
- Each of the mounting slots 1256 includes a number of drive guides 1258 that cooperate to define an access opening 1260 of the corresponding mounting slot 1256 .
- the storage cage 1252 is secured to the chassis-less circuit board substrate 602 such that the access openings face away from (i.e., toward the front of) the chassis-less circuit board substrate 602 .
- solid state drives 1254 are accessible while the storage sled 1200 is mounted in a corresponding rack 204 .
- a solid state drive 1254 may be swapped out of a rack 240 (e.g., via a robot) while the storage sled 1200 remains mounted in the corresponding rack 240 .
- the storage cage 1252 illustratively includes sixteen mounting slots 1256 and is capable of mounting and storing sixteen solid state drives 1254 .
- the storage cage 1252 may be configured to store additional or fewer solid state drives 1254 in other embodiments.
- the solid state drivers are mounted vertically in the storage cage 1252 , but may be mounted in the storage cage 1252 in a different orientation in other embodiments.
- Each solid state drive 1254 may be embodied as any type of data storage device capable of storing long term data. To do so, the solid state drives 1254 may include volatile and non-volatile memory devices discussed above.
- the storage controllers 1220 , the communication circuit 830 , and the optical data connector 834 are illustratively mounted to the top side 650 of the chassis-less circuit board substrate 602 .
- any suitable attachment or mounting technology may be used to mount the electrical components of the storage sled 1200 to the chassis-less circuit board substrate 602 including, for example, sockets (e.g., a processor socket), holders, brackets, soldered connections, and/or other mounting or securing techniques.
- the individual storage controllers 1220 and the communication circuit 830 are mounted to the top side 650 of the chassis-less circuit board substrate 602 such that no two heat-producing, electrical components shadow each other.
- the storage controllers 1220 and the communication circuit 830 are mounted in corresponding locations on the top side 650 of the chassis-less circuit board substrate 602 such that no two of those electrical components are linearly in-line with other along the direction of the airflow path 608 .
- the memory devices 720 of the storage sled 1200 are mounted to the bottom side 750 of the of the chassis-less circuit board substrate 602 as discussed above in regard to the sled 400 . Although mounted to the bottom side 750 , the memory devices 720 are communicatively coupled to the storage controllers 1220 located on the top side 650 via the I/O subsystem 622 . Again, because the chassis-less circuit board substrate 602 is embodied as a double-sided circuit board, the memory devices 720 and the storage controllers 1220 may be communicatively coupled by one or more vias, connectors, or other mechanisms extending through the chassis-less circuit board substrate 602 . Each of the storage controllers 1220 includes a heatsink 1270 secured thereto.
- each of the heatsinks 1270 includes cooling fans attached thereto. That is, each of the heatsinks 1270 is embodied as a fan-less heatsink.
- the sled 400 may be embodied as a memory sled 1400 .
- the storage sled 1400 is optimized, or otherwise configured, to provide other sleds 400 (e.g., compute sleds 800 , accelerator sleds 1000 , etc.) with access to a pool of memory (e.g., in two or more sets 1430 , 1432 of memory devices 720 ) local to the memory sled 1200 .
- a compute sled 800 or an accelerator sled 1000 may remotely write to and/or read from one or more of the memory sets 1430 , 1432 of the memory sled 1200 using a logical address space that maps to physical addresses in the memory sets 1430 , 1432 .
- the memory sled 1400 includes various components similar to components of the sled 400 and/or the compute sled 800 , which have been identified in FIG. 14 using the same reference numbers. The description of such components provided above in regard to FIGS. 6, 7, and 8 apply to the corresponding components of the memory sled 1400 and is not repeated herein for clarity of the description of the memory sled 1400 .
- the physical resources 620 are embodied as memory controllers 1420 . Although only two memory controllers 1420 are shown in FIG. 14 , it should be appreciated that the memory sled 1400 may include additional memory controllers 1420 in other embodiments.
- the memory controllers 1420 may be embodied as any type of processor, controller, or control circuit capable of controlling the writing and reading of data into the memory sets 1430 , 1432 based on requests received via the communication circuit 830 .
- each storage controller 1220 is connected to a corresponding memory set 1430 , 1432 to write to and read from memory devices 720 within the corresponding memory set 1430 , 1432 and enforce any permissions (e.g., read, write, etc.) associated with sled 400 that has sent a request to the memory sled 1400 to perform a memory access operation (e.g., read or write).
- a memory access operation e.g., read or write
- the memory sled 1400 may also include a controller-to-controller interconnect 1442 .
- the controller-to-controller interconnect 1442 may be embodied as any type of communication interconnect capable of facilitating controller-to-controller communications.
- the controller-to-controller interconnect 1442 is embodied as a high-speed point-to-point interconnect (e.g., faster than the I/O subsystem 622 ).
- the controller-to-controller interconnect 1442 may be embodied as a QuickPath Interconnect (QPI), an UltraPath Interconnect (UPI), or other high-speed point-to-point interconnect dedicated to processor-to-processor communications.
- a memory controller 1420 may access, through the controller-to-controller interconnect 1442 , memory that is within the memory set 1432 associated with another memory controller 1420 .
- a scalable memory controller is made of multiple smaller memory controllers, referred to herein as “chiplets”, on a memory sled (e.g., the memory sled 1400 ).
- the chiplets may be interconnected (e.g., using EMIB (Embedded Multi-Die Interconnect Bridge)).
- the combined chiplet memory controller may scale up to a relatively large number of memory controllers and I/O ports, (e.g., up to 16 memory channels).
- the memory controllers 1420 may implement a memory interleave (e.g., one memory address is mapped to the memory set 1430 , the next memory address is mapped to the memory set 1432 , and the third address is mapped to the memory set 1430 , etc.).
- the interleaving may be managed within the memory controllers 1420 , or from CPU sockets (e.g., of the compute sled 800 ) across network links to the memory sets 1430 , 1432 , and may improve the latency associated with performing memory access operations as compared to accessing contiguous memory addresses from the same memory device.
- the memory sled 1400 may be connected to one or more other sleds 400 (e.g., in the same rack 240 or an adjacent rack 240 ) through a waveguide, using the waveguide connector 1480 .
- the waveguides are 64 millimeter waveguides that provide 16 Rx (i.e., receive) lanes and 16 Rt (i.e., transmit) lanes.
- Each lane in the illustrative embodiment, is either 16 Ghz or 32 Ghz. In other embodiments, the frequencies may be different.
- Using a waveguide may provide high throughput access to the memory pool (e.g., the memory sets 1430 , 1432 ) to another sled (e.g., a sled 400 in the same rack 240 or an adjacent rack 240 as the memory sled 1400 ) without adding to the load on the optical data connector 834 .
- the memory pool e.g., the memory sets 1430 , 1432
- another sled e.g., a sled 400 in the same rack 240 or an adjacent rack 240 as the memory sled 1400
- the system 1510 includes an orchestrator server 1520 , which may be embodied as a managed node comprising a compute device (e.g., a compute sled 800 ) executing management software (e.g., a cloud operating environment, such as OpenStack) that is communicatively coupled to multiple sleds 400 including a large number of compute sleds 1530 (e.g., each similar to the compute sled 800 ), memory sleds 1540 (e.g., each similar to the memory sled 1400 ), accelerator sleds 1550 (e.g., each similar to the memory sled 1000 ), and storage sleds 1560 (e.g., each similar to the storage sled 1200 ).
- a compute device e.g., a compute sled 800
- management software e.g., a cloud operating environment, such as OpenStack
- multiple sleds 400 including a large number of compute sleds 1530 (e.g., each
- One or more of the sleds 1530 , 1540 , 1550 , 1560 may be grouped into a managed node 1570 , such as by the orchestrator server 1520 , to collectively perform a workload (e.g., an application 1532 executed in a virtual machine or in a container).
- the managed node 1570 may be embodied as an assembly of physical resources 620 , such as processors 820 , memory resources 720 , accelerator circuits 1020 , or data storage 1250 , from the same or different sleds 400 .
- the managed node may be established, defined, or “spun up” by the orchestrator server 1520 at the time a workload is to be assigned to the managed node or at any other time, and may exist regardless of whether any workloads are presently assigned to the managed node.
- the orchestrator server 1520 may selectively allocate and/or deallocate physical resources 620 from the sleds 400 and/or add or remove one or more sleds 400 from the managed node 1570 as a function of quality of service (QoS) targets (e.g., performance targets associated with a throughput, latency, instructions per second, etc.) associated with a service level agreement for the workload (e.g., the application 1532 ).
- QoS quality of service
- the orchestrator server 1520 may receive telemetry data indicative of performance conditions (e.g., throughput, latency, instructions per second, etc.) in each sled 400 of the managed node 1570 and compare the telemetry data to the quality of service targets to determine whether the quality of service targets are being satisfied. If the so, the orchestrator server 1520 may additionally determine whether one or more physical resources may be deallocated from the managed node 1570 while still satisfying the QoS targets, thereby freeing up those physical resources for use in another managed node (e.g., to execute a different workload). Alternatively, if the QoS targets are not presently satisfied, the orchestrator server 1520 may determine to dynamically allocate additional physical resources to assist in the execution of the workload (e.g., the application 1532 ) while the workload is executing
- performance conditions e.g., throughput, latency, instructions per second, etc.
- the orchestrator server 1520 may identify trends in the resource utilization of the workload (e.g., the application 1532 ), such as by identifying phases of execution (e.g., time periods in which different operations, each having different resource utilizations characteristics, are performed) of the workload (e.g., the application 1532 ) and pre-emptively identifying available resources in the data center 100 and allocating them to the managed node 1570 (e.g., within a predefined time period of the associated phase beginning).
- phases of execution e.g., time periods in which different operations, each having different resource utilizations characteristics, are performed
- the orchestrator server 1520 may model performance based on various latencies and a distribution scheme to place workloads among compute sleds and other resources (e.g., accelerator sleds, memory sleds, storage sleds) in the data center 100 .
- the orchestrator server 1520 may utilize a model that accounts for the performance of resources on the sleds 400 (e.g., FPGA performance, memory access latency, etc.) and the performance (e.g., congestion, latency, bandwidth) of the path through the network to the resource (e.g., FPGA).
- the orchestrator server 1520 may determine which resource(s) should be used with which workloads based on the total latency associated with each potential resource available in the data center 100 (e.g., the latency associated with the performance of the resource itself in addition to the latency associated with the path through the network between the compute sled executing the workload and the sled 400 on which the resource is located).
- the orchestrator server 1520 may generate a map of heat generation in the data center 100 using telemetry data (e.g., temperatures, fan speeds, etc.) reported from the sleds 400 and allocate resources to managed nodes as a function of the map of heat generation and predicted heat generation associated with different workloads, to maintain a target temperature and heat distribution in the data center 100 .
- telemetry data e.g., temperatures, fan speeds, etc.
- the orchestrator server 1520 may organize received telemetry data into a hierarchical model that is indicative of a relationship between the managed nodes (e.g., a spatial relationship such as the physical locations of the resources of the managed nodes within the data center 100 and/or a functional relationship, such as groupings of the managed nodes by the customers the managed nodes provide services for, the types of functions typically performed by the managed nodes, managed nodes that typically share or exchange workloads among each other, etc.). Based on differences in the physical locations and resources in the managed nodes, a given workload may exhibit different resource utilizations (e.g., cause a different internal temperature, use a different percentage of processor or memory capacity) across the resources of different managed nodes.
- resource utilizations e.g., cause a different internal temperature, use a different percentage of processor or memory capacity
- the orchestrator server 1520 may determine the differences based on the telemetry data stored in the hierarchical model and factor the differences into a prediction of future resource utilization of a workload if the workload is reassigned from one managed node to another managed node, to accurately balance resource utilization in the data center 100 .
- the orchestrator server 1520 may send self-test information to the sleds 400 to enable each sled 400 to locally (e.g., on the sled 400 ) determine whether telemetry data generated by the sled 400 satisfies one or more conditions (e.g., an available capacity that satisfies a predefined threshold, a temperature that satisfies a predefined threshold, etc.). Each sled 400 may then report back a simplified result (e.g., yes or no) to the orchestrator server 1520 , which the orchestrator server 1520 may utilize in determining the allocation of resources to managed nodes.
- a simplified result e.g., yes or no
- the illustrative system 1600 includes a resource manager server 1606 communicatively coupled to multiple compute sleds 1602 and a memory sled 1608 via a network switch 1604 .
- the resource manager server 1606 is configured to manage resources of the system 1600 to perform various workload operations.
- the resource manager server 1606 is additionally configured to manage virtual machines (VMs) to execute a workload (e.g., an application) using the allocated resources.
- VMs virtual machines
- one or more containers may be used in conjunction with or independent of a virtual machine (VM) instance.
- the resource manager server 1606 receives an indication or otherwise identifies that a VM instance (e.g., the virtual machine 1616 ) presently being executed on one compute sled 1602 (e.g., compute sled ( 1 ) 1602 a ) is to be migrated to another compute sled 1602 (e.g., compute sled ( 2 ) 1602 b ). Accordingly, as will be described in further detail below, the resource manager server 1606 manages the migration.
- a VM instance e.g., the virtual machine 1616
- another compute sled 1602 e.g., compute sled ( 2 ) 1602 b
- a previously allocated region of memory in a memory pool (e.g., the memory 1612 of the memory pool 1614 ) which was associated with (i.e., mapped to) the initial compute sled 1602 a is re-mapped to be associated with the other compute sled 1602 b.
- the data stored in the memory pool 1614 does not need to be transferred across the network fabric at any point in the migration of the VM, thereby eliminating the bandwidth consumption associated with the network traffic which would have otherwise been required to copy the data across the network fabric.
- the resource manager server 1606 may be embodied as any type of computing device capable of monitoring and managing resources of the compute sleds 1602 , as well as performing the other functions described herein.
- the resource manager server 1606 may be embodied as a computer, a distributed computing system, one or more sleds, a server (e.g., stand-alone, rack-mounted, blade, etc.), a multiprocessor system, a network appliance (e.g., physical or virtual), a desktop computer, a workstation, a laptop computer, a notebook computer, a processor-based system, or a network appliance. As shown in FIG.
- the illustrative resource manager server 1606 includes a compute engine 1702 , an input/output (I/O) subsystem 1708 , one or more data storage devices 1710 , communication circuitry 1712 , and one or more peripheral devices 1716 .
- the resource manager server 1606 may include other or additional components, such as those commonly found in a typical computing device (e.g., various input/output devices and/or other components), in other embodiments. Additionally, in some embodiments, one or more of the illustrative components may be incorporated in, or otherwise form a portion of, another component.
- the compute engine 1702 may be embodied as any type of device or collection of devices capable of performing the various compute functions as described herein.
- the compute engine 1702 may be embodied as a single device such as an integrated circuit, an embedded system, a field-programmable-array (FPGA), a system-on-a-chip (SOC), an application specific integrated circuit (ASIC), reconfigurable hardware or hardware circuitry, or other specialized hardware to facilitate performance of the functions described herein.
- the compute engine 1702 may include, or may be embodied as, a processor 1704 (i.e., a central processing unit (CPU)) and memory 1706 .
- a processor 1704 i.e., a central processing unit (CPU)
- memory 1706 i.e., a central processing unit
- the processor 1704 may be embodied as any type of processor capable of performing the functions described herein.
- the processor 1704 may be embodied as a single or multi-core processor(s), digital signal processor, microcontroller, or other processor or processing/controlling circuit.
- the processor 1704 may be embodied as, include, or otherwise be coupled to a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), reconfigurable hardware or hardware circuitry, or other specialized hardware to facilitate performance of the functions described herein.
- FPGA field programmable gate array
- ASIC application specific integrated circuit
- reconfigurable hardware or hardware circuitry or other specialized hardware to facilitate performance of the functions described herein.
- the memory 1706 may be embodied as any type of volatile (e.g., dynamic random access memory (DRAM), etc.) or non-volatile memory or data storage capable of performing the functions described herein. It should be appreciated that the memory 1706 may include main memory (i.e., a primary memory) and/or cache memory (i.e., memory that can be accessed more quickly than the main memory). Volatile memory may be a storage medium that requires power to maintain the state of data stored by the medium. Non-limiting examples of volatile memory may include various types of random access memory (RAM), such as dynamic random access memory (DRAM) or static random access memory (SRAM).
- RAM random access memory
- DRAM dynamic random access memory
- SRAM static random access memory
- DRAM synchronous dynamic random access memory
- DRAM of a memory component may comply with a standard promulgated by JEDEC, such as JESD79F for DDR SDRAM, JESD79-2F for DDR2 SDRAM, JESD79-3F for DDR3 SDRAM, JESD79-4A for DDR4 SDRAM, JESD209 for Low Power DDR (LPDDR), JESD209-2 for LPDDR2, JESD209-3 for LPDDR3, and JESD209-4 for LPDDR4 (these standards are available at www.jedec.org).
- LPDDR Low Power DDR
- Such standards may be referred to as DDR-based standards and communication interfaces of the storage devices that implement such standards may be referred to as DDR-based interfaces.
- the memory device is a block addressable memory device, such as those based on NAND or NOR technologies.
- a memory device may also include future generation nonvolatile devices, such as a three dimensional crosspoint memory device (e.g., Intel 3D XPointTM memory), or other byte addressable write-in-place nonvolatile memory devices.
- the memory device may be or may include memory devices that use chalcogenide glass, multi-threshold level NAND flash memory, NOR flash memory, single or multi-level Phase Change Memory (PCM), a resistive memory, nanowire memory, ferroelectric transistor random access memory (FeTRAM), anti-ferroelectric memory, magnetoresistive random access memory (MRAM) memory that incorporates memristor technology, resistive memory including the metal oxide base, the oxygen vacancy base and the conductive bridge Random Access Memory (CB-RAM), or spin transfer torque (STT)-MRAM, a spintronic magnetic junction memory based device, a magnetic tunneling junction (MTJ) based device, a DW (Domain Wall) and SOT (Spin Orbit Transfer) based device, a thyristor based memory device, or a combination of any of the above, or other memory.
- the memory device may refer to the die itself and/or to a packaged memory product.
- 3D crosspoint memory may comprise a transistor-less stackable cross point architecture in which memory cells sit at the intersection of word lines and bit lines and are individually addressable and in which bit storage is based on a change in bulk resistance.
- all or a portion of the memory 1706 may be integrated into the processor 1704 .
- the memory 1706 may store various software and data used during operation such as job request data, kernel map data, telemetry data, applications, programs, libraries, and drivers.
- the compute engine 1702 is communicatively coupled to other components of the resource manager server 1606 via the I/O subsystem 1708 , which may be embodied as circuitry and/or components to facilitate input/output operations with the processor 1704 , the memory 1706 , and other components of the resource manager server 1606 .
- the I/O subsystem 1708 may be embodied as, or otherwise include, memory controller hubs, input/output control hubs, integrated sensor hubs, firmware devices, communication links (e.g., point-to-point links, bus links, wires, cables, light guides, printed circuit board traces, etc.), and/or other components and subsystems to facilitate the input/output operations.
- the I/O subsystem 1708 may form a portion of a system-on-a-chip (SoC) and be incorporated, along with one or more of the processor 1704 , the memory 1706 , and other components of the resource manager server 1606 , on a single integrated circuit chip.
- SoC system-on-a-chip
- the one or more data storage devices 1710 may be embodied as any type of storage device(s) configured for short-term or long-term storage of data, such as, for example, memory devices and circuits, memory cards, hard disk drives, solid-state drives, or other data storage devices.
- Each data storage device 1710 may include a system partition that stores data and firmware code for the data storage device 1710 .
- Each data storage device 1710 may also include an operating system partition that stores data files and executables for an operating system.
- the communication circuitry 1712 may be embodied as any communication circuit, device, or collection thereof, capable of enabling communications between the resource manager server 1606 and other compute devices (e.g., the compute sleds 1602 of FIG. 16 ) over a network. Accordingly, the communication circuitry 1712 may be configured to use any one or more communication technology (e.g., wired or wireless communications) and associated protocols (e.g., Ethernet, Bluetooth®, Wi-Fi®, WiMAX, etc.) to effect such communication.
- any one or more communication technology e.g., wired or wireless communications
- associated protocols e.g., Ethernet, Bluetooth®, Wi-Fi®, WiMAX, etc.
- the illustrative communication circuitry 1712 includes a network interface controller (NIC) 1714 , which may also be referred to as a host fabric interface (HFI).
- NIC network interface controller
- HFI host fabric interface
- the NIC 1714 may be embodied as one or more add-in-boards, daughtercards, network interface cards, controller chips, chipsets, or other devices that may be used by the resource manager server 1606 to connect with another compute device (e.g., one of the compute sleds 1602 of FIG. 16 ).
- the NIC 1714 may be embodied as part of a system-on-a-chip (SoC) that includes one or more processors, or included on a multichip package that also contains one or more processors.
- SoC system-on-a-chip
- the NIC 1714 may include a local processor (not shown) and/or a local memory (not shown) that are both local to the NIC 1714 .
- the local processor of the NIC 1714 may be capable of performing one or more of the functions of the processor 1704 described herein.
- the local memory of the NIC 1714 may be integrated into one or more components of the resource manager server 1606 at the board level, socket level, chip level, and/or other levels.
- the one or more peripheral devices 1716 may include any type of device that is usable to input information into the resource manager server 1606 and/or receive information from the resource manager server 1606 .
- the peripheral devices 1716 may be embodied as any auxiliary device usable to input information into the resource manager server 1606 , such as a keyboard, a mouse, a microphone, a barcode reader, an image scanner, etc., or output information from the resource manager server 1606 , such as a display, a speaker, graphics circuitry, a printer, a projector, etc.
- one or more of the peripheral devices 1716 may function as both an input device and an output device (e.g., a touchscreen display, a digitizer on top of a display screen, etc.).
- peripheral devices 1716 connected to the resource manager server 1606 may depend on, for example, the type and/or intended use of the resource manager server 1606 .
- the peripheral devices 1716 may include one or more ports, such as a USB port, for example, for connecting external peripheral devices to the resource manager server 1606 .
- the network switch 1604 may be embodied as any type of networking device capable of performing the functions described herein, including switching network packets between the compute sleds 1602 , the resource manager server 1606 , and the memory sled 1608 , as well as any other computing devices.
- the network switch 1604 may be embodied as a top-of-rack switch, a middle-of-rack switch, or other Ethernet switch.
- the network switch 1604 as described previously, is communicatively coupled to multiple sleds including the compute sleds 1602 and a memory sled 1608 .
- the network switch 1604 is configured to facilitate communication between the resource manager server 1606 and the compute sleds 1602 , and between the resource manager server 1606 and the memory sled 1608 , as well as between the compute sleds 1602 and the memory sled 1608 . While the network switch 1604 is illustratively shown as providing the communication link between the compute sleds 1602 and the memory sled 1608 , it should be appreciated that, in other embodiments, the compute sleds 1602 and the memory sled 1608 may be connected via a set of dedicated links. In such embodiments, each of the compute sleds 1602 may be communicatively coupled to the memory sled 1608 via a dedicated link.
- the compute sleds 1602 may be embodied as any type of compute device capable of performing the functions described herein, including instantiating/stopping/starting a VM instance and executing a workload (e.g., within the VM instance). As shown in FIG. 18 , an illustrative one of the compute sleds 1602 , has similar components to that of the resource manager server 1606 , including a compute engine 1802 with a processor 1804 and a memory 1806 , an I/O subsystem 1808 , communication circuitry 1812 with a NIC 1814 , and, in some embodiments, one or more data storage devices 1810 and/or one or more peripheral devices 1816 .
- the compute sleds 1602 may include other or additional components, such as those commonly found in a computing device. Additionally, in some embodiments, one or more of the illustrative components may be incorporated in, or otherwise form a portion of, another component.
- the memory sled 1608 may be embodied as any type of storage device capable of performing the functions described herein, such as managing a memory pool 1614 of memory 1612 (e.g., physical storage resources 205 - 1 ).
- the illustrative memory sled 1608 includes a memory pool controller 1610 , which is configured to manage data into and out of the memory pool 1614 such that the data can be stored and retrieved by the compute sleds 1602 .
- the memory pool controller 1610 may be embodied as virtual and/or physical hardware, firmware, software, or a combination thereof. It should be further appreciated that while only a single memory sled 1608 is shown, other embodiments may include more than one memory sled 1608 .
- the memory 1612 of the memory pool 1614 may be embodied as any type of volatile (e.g., dynamic random access memory (DRAM), etc.) or non-volatile memory or data storage capable of performing the functions described herein.
- Volatile memory may be a storage medium that requires power to maintain the state of data stored by the medium.
- Non-limiting examples of volatile memory may include various types of random access memory (RAM), such as dynamic random access memory (DRAM) or static random access memory (SRAM).
- RAM random access memory
- DRAM dynamic random access memory
- SRAM static random access memory
- DRAM synchronous dynamic random access memory
- DRAM of a memory component may comply with a standard promulgated by JEDEC, such as JESD79F for DDR SDRAM, JESD79-2F for DDR2 SDRAM, JESD79-3F for DDR3 SDRAM, JESD79-4A for DDR4 SDRAM, JESD209 for Low Power DDR (LPDDR), JESD209-2 for LPDDR2, JESD209-3 for LPDDR3, and JESD209-4 for LPDDR4 (these standards are available at www.jedec.org).
- LPDDR Low Power DDR
- Such standards may be referred to as DDR-based standards and communication interfaces of the storage devices that implement such standards may be referred to as DDR-based interfaces.
- the memory 1612 may be embodied as a block addressable memory device, such as those based on NAND or NOR technologies.
- a memory device may also include future generation nonvolatile devices, such as a three dimensional (3D) crosspoint memory device (e.g., Intel 3D XPointTM memory), or other byte addressable write-in-place nonvolatile memory devices.
- the 3D crosspoint memory e.g., Intel 3D XPointTM memory
- the memory 1612 may be or may include memory devices that use chalcogenide glass, multi-threshold level NAND flash memory, NOR flash memory, single or multi-level Phase Change Memory (PCM), a resistive memory, nanowire memory, ferroelectric transistor random access memory (FeTRAM), anti-ferroelectric memory, magnetoresistive random access memory (MRAM) memory that incorporates memristor technology, resistive memory including the metal oxide base, the oxygen vacancy base and the conductive bridge Random Access Memory (CB-RAM), or spin transfer torque (STT)-MRAM, a spintronic magnetic junction memory based device, a magnetic tunneling junction (MTJ) based device, a DW (Domain Wall) and SOT (Spin Orbit Transfer) based device, a thyristor based memory device, or a combination of any of the above, or other memory.
- the memory device may refer to the die itself and/or to a packaged memory product.
- the illustrative compute sleds 1602 include a first compute sled, designated as compute sled ( 1 ) 1602 a, a second compute sled, designated as compute sled ( 2 ) 1602 b, and a third compute sled, designated as compute sled (N) 1602 c (e.g., in which the compute sled (N) 1602 c represents the “Nth” compute sled 1602 , wherein “N” is a positive integer).
- one or more of the compute sleds 1602 may be grouped into a managed node, such as by the resource manager server 1606 , to collectively perform a workload, such as an application.
- a managed node may be embodied as an assembly of resources, such as compute resources, memory resources, storage resource, or other resources, from the same or different sleds or racks.
- a managed node may be established, defined, or “spun up” by the resource manager server 1606 at the time a workload is to be assigned to the managed node or at any other time, and may exist regardless of whether any workloads are presently assigned to the managed node.
- the resource manager server 1606 may, in some embodiments, perform one or more orchestration operations in support of a cloud operating environment, such as OpenStack, and managed nodes established by the resource manager server 1606 may execute one or more applications or processes (i.e., workloads), such as in the VMs or containers, on behalf of a user of a client device (not shown) communicatively coupled to the resource manager server 1606 (e.g., via a network).
- the resource manager server 1606 may establish an environment 1900 during operation.
- the illustrative environment 1900 includes a network connection manager 1910 , a memory pool communicator 1920 , a resource allocator 1930 , and a VM instance manager 1940 .
- Each of the components of the environment 1900 may be embodied as hardware, firmware, software, or a combination thereof.
- one or more of the components of the environment 1900 may be embodied as circuitry or a collection of electrical devices (e.g., network connection management circuitry 1910 , memory pool communication circuitry 1920 , resource allocation circuitry 1930 , VM instance management circuitry 1940 , etc.).
- one or more of the network connection management circuitry 1910 , the memory pool communication circuitry 1920 , the resource allocation circuitry 1930 , and the VM instance management circuitry 1940 may form a portion of one or more of the compute engine 1702 , the one or more data storage devices 1710 , the communication circuitry 1712 , and/or any other components of the resource manager server 1606 .
- the environment 1900 additionally includes resource data 1902 and virtual machine data 1904 , each of which may be embodied as any data established by the resource manager server 1606 .
- the resource data 1902 may include any data usable to identify and/or allocate resources of the compute sleds 1602 and/or the memory sled 1608 .
- the virtual machine data 1904 may include any data usable to identify VM instances (e.g., the VM instance 1616 of FIG. 16 ) and the respective compute sleds 1602 on which the VM instances are presently being executed.
- the virtual machine data 1904 may additionally include VM resource requirement data usable to identify what resources are required for each VM instance.
- the network connection manager 1910 which may be embodied as hardware, firmware, software, virtualized hardware, emulated architecture, and/or a combination thereof as discussed above, is configured to facilitate inbound and outbound network communications (e.g., network traffic, network packets, network flows, etc.) to and from the resource manager server 1606 , respectively. To do so, the network connection manager 1910 is configured to receive and process data packets from one system or computing device (e.g., one of the compute sleds 1602 ) and to prepare and send data packets to another computing device or system (e.g., one of the compute sleds 1602 ). Accordingly, in some embodiments, at least a portion of the functionality of the network connection manager 1910 may be performed by the communication circuitry 1712 , or more particularly by the NIC 1714 .
- the communication circuitry 1712 or more particularly by the NIC 1714 .
- the memory pool communicator 1920 which may be embodied as hardware, firmware, software, virtualized hardware, emulated architecture, and/or a combination thereof as discussed above, is configured to facilitate transmissions between the resource manager server 1606 and a memory pool controller of a memory pool (e.g., the memory pool controller 1610 of the memory pool 1614 of FIG. 16 ).
- the memory pool communicator 1920 is configured to generate and transmit memory allocation and memory map requests to the memory pool controller 1610 which are usable to allocate regions of memory (i.e., in response to a received memory allocation request) and map allocated regions of memory to a particular compute sled 1602 (i.e., in response to a received memory map request).
- the resource allocator 1930 which may be embodied as hardware, firmware, software, virtualized hardware, emulated architecture, and/or a combination thereof as discussed above, is configured to manage the available and allocated resources of the compute sleds 1602 . To do so, the resource allocator 1930 may be configured to identify data associated with the resources, such as a compute capacity/availability, a memory bandwidth capacity/availability, a data storage capacity/availability, and/or a level of reliability, resiliency, and/or availability of the resources. In some embodiments, the resource allocator 1930 may be configured to store data related to the presently and/or historically available and/or allocated resources in the resource data 1902 .
- the VM instance manager 1940 which may be embodied as hardware, firmware, software, virtualized hardware, emulated architecture, and/or a combination thereof as discussed above, is configured to manage the creation, migration, and deletion of VM instances on the compute sleds 1602 .
- the illustrative VM instance manager 1940 includes a resource identifier 1942 and a migration manager 1944 .
- the resource identifier 1942 is configured to identify which resources to allocate for a particular purpose (e.g., a workload). Such resources may be allocated by type, amount, performance, intended use, etc., and may include network communication resources, storage resources, compute resources, etc.
- the migration manager 1944 is configured to detect whether a migration trigger has been detected. To do so, for example, the migration manager 1944 may be configured to collect or otherwise analyze collected telemetry data to determine whether certain conditions exist such that a migration of a VM from one compute sled 1602 to another compute sled 1602 , or more particularly from a CPU on a compute sled 1602 (e.g., the processor 1804 of the illustrative compute sled 1602 of FIG. 18 ) to a different CPU on another compute sled 1602 , is required.
- a migration of a VM from one compute sled 1602 to another compute sled 1602 , or more particularly from a CPU on a compute sled 1602 (e.g., the processor 1804 of the illustrative compute sled 1602 of FIG. 18 ) to a different CPU on another compute sled 1602 , is required.
- the migration manager 1944 is configured to manage the migration of a VM instance in response to having detected a migration triggering event. To do so, the migration manager 1944 may be configured to identify the compute sled 1602 on which the VM instance to be migrated is presently being executed and transmit an indication to the identified compute sled 1602 that indicates which VM instance is to be migrated. Accordingly, upon receipt, the compute sled 1602 can stop the VM instance and initiate a data flush to a mapped region of memory in a memory pool (e.g., the memory 1612 in the memory pool 1614 of FIG. 16 ).
- a memory pool e.g., the memory 1612 in the memory pool 1614 of FIG. 16 .
- the migration manager 1944 is further configured to migrate the workload/VM instance to the new compute sled 1602 and initiate the re-mapping of the region of memory to the new compute sled 1602 and the startup of the VM instance on the new compute sled 1602 .
- the migration manager 1944 is configured to provide identifying information of the old and new compute sleds 1602 to the memory pool controller 1610 (e.g., via the memory pool communicator 1920 ) which is usable by the memory pool controller 1610 to change the mapping of the data associated with the migrated VM instance from the old compute sled 1602 to the new compute sled 1602 .
- the illustrative embodiment described herein is referring to a VM instance, it should be appreciated that the migration operations described herein may be performed on another object, such as a container, in other embodiments.
- a resource manager server may execute a method 2000 for creating a VM instance (e.g., the VM instance 1616 of FIG. 16 ) on a compute sled (e.g., one of the compute sleds 1602 ), or more particularly on a CPU of the compute sled 1602 .
- the method 2000 begins in block 2002 , in which the resource manager server 1606 determines whether to create a VM instance 1616 .
- the method 2000 advances to block 2004 , in which the resource manager server 1606 determines which resources (e.g., compute resources, storage resources, network resources, etc.) are required by a workload to be processed by or otherwise run on the VM instance 1616 .
- resources e.g., compute resources, storage resources, network resources, etc.
- the resource manager server 1606 determines a compute sled 1602 (e.g., one of the compute sled ( 1 ) 1602 a, the compute sled ( 2 ) 1602 b, the compute sled (N) 1602 c of FIG. 16 ) on which to launch the VM instance 1616 .
- a compute sled 1602 e.g., one of the compute sled ( 1 ) 1602 a, the compute sled ( 2 ) 1602 b, the compute sled (N) 1602 c of FIG. 16
- the resource manager server 1606 first identifies the available resources of each available compute sled 1602 .
- the resource manager server 1606 determines the compute sled to launch the VM instance 1616 based on the determined resources required by the workload and the identified available resources of each available compute sled 1602 .
- the resource manager server 1606 allocates resources of the determined compute sled for use by the VM instance.
- the resource manager server 1606 allocates a region of memory in a memory pool (e.g., the memory 1612 in the memory pool 1614 of FIG. 16 ) to be associated with the compute sled 1602 .
- the regions of memory may be private (i.e., dedicated to the compute sled 1602 ) or shared among more than one compute sled 1602 .
- the resource manager server 1606 transmits a memory allocation request to a memory pool controller (e.g., the memory pool controller 1610 ) of the memory pool 1614 .
- the resource manager server 1606 includes information usable to map the compute sled to the allocated memory region (e.g., identifying information of the compute sled 1602 and/or the CPU of the compute sled 1602 on which the VM instance is to be run).
- the resource manager server 1606 creates the VM instance 1616 .
- a resource manager server 1606 may execute a method 2100 for migrating an existing VM instance (e.g., the VM instance 1616 of FIG. 16 ) from one compute sled 1602 (e.g., the compute sled ( 1 ) 1602 a ) to another compute sled 1602 (e.g., the compute sled ( 2 ) 1602 b ), or more particularly from one CPU (e.g., the processor 1804 of the illustrative compute sled 1602 of FIG. 18 ) of a compute sled 1602 to a CPU of another compute sled 1602 .
- one compute sled 1602 e.g., the compute sled ( 1 ) 1602 a
- another compute sled 1602 e.g., the compute sled ( 2 ) 1602 b
- one CPU e.g., the processor 1804 of the illustrative compute sled 1602 of FIG. 18
- the method 2100 begins in block 2102 , in which the resource manager server 1606 determines whether to migrate a VM instance 1616 . If so, the method 2100 advances to block 2104 , in which the resource manager server 1606 retrieves the resources (e.g., compute resources, storage resources, network resources, etc.) which have previously been determined as being required by the workload being processed by or otherwise run on the VM instance 1616 .
- the resources e.g., compute resources, storage resources, network resources, etc.
- the resource manager server 1606 determines another compute sled 1602 on which to migrate the VM instance 1616 to. To do so, in block 2108 , the resource manager server 1606 first identifies the available resources of each of the other available compute sleds 1602 . Additionally, in block 2110 , the resource manager server 1606 determines the compute sled to migrate the VM instance 1616 to based on the retrieved resources required by the workload and the identified available resources of each of the other available compute sleds 1602 .
- the resource manager server 1606 allocates resources of the determined other compute sled for use by the VM instance 1616 upon being migrated.
- the resource manager server 1606 migrates the VM instance 1616 to the other determined compute sled 1602 .
- the data e.g., software/hardware thread states
- the data associated with the workload being processed by the VM instance 1616 and/or data corresponding to the VM instance 1616 itself are migrated to the other compute sled 1602 .
- the resource manager server 1606 re-maps the region of memory in the memory pool from the previously associated compute sled 1602 (i.e., from which the VM instance 1616 is being migrated from) to the other compute sled 1602 (i.e., to which the VM instance 1616 is being migrated to). To do so, in block 2118 , the resource manager server 1606 transmits a memory re-map request to a memory pool controller (e.g., the memory pool controller 1610 ) of the memory pool 1614 .
- a memory pool controller e.g., the memory pool controller 1610
- the resource manager server 1606 includes information usable to re-map the allocated memory region from the previously associated compute sled 1602 to the compute sled 1602 which the VM instance 1616 is being migrated to. In block 2122 , the resource manager server 1606 starts-up the VM instance 1616 on the other compute sled 1602 .
- An embodiment of the technologies disclosed herein may include any one or more, and any combination of, the examples described below.
- Example 1 includes a resource manager server for migrating virtual machines, the resource manager server comprising a compute engine to identify a compute sled of a plurality of compute sleds for a virtual machine (VM) instance, wherein each of the compute sleds is communicatively coupled to the resource manager server; allocate a first set of resources of the identified compute sled for the VM instance; associate a region of memory in a memory pool of a memory sled with the compute sled, wherein the memory sled is communicatively coupled to the resource manager server; create the VM instance on the compute sled; allocate, in response to determined determination that the VM instance is to be migrated, a second set of resources of another compute sled of the plurality of compute sleds for the VM instance; migrate the VM instance to the other compute sled; associate the region of memory in the memory pool with the other compute sled; and start-up the VM instance on the other compute sled.
- VM virtual machine
- Example 2 includes the subject matter of Example 1, and wherein to allocate the first set of resources of the compute sled comprises to (i) determine a set of resources required by a workload to be processed by the VM instance and (ii) allocate the first set of resources of the compute sled as a function of the determined required set of resources.
- Example 3 includes the subject matter of any of Examples 1 and 2, and wherein to allocate the first set of resources of the compute sled further comprises to (i) identify available resources of each of the plurality of compute sleds and (ii) allocate the first set of resources of the compute sled as a function of the identified available resources.
- Example 4 includes the subject matter of any of Examples 1-3, and wherein to associate the region of memory in the memory pool of the memory sled with the compute sled comprises to transmit a memory allocation request to a memory pool controller of the memory pool that is usable to allocate the region of memory and map the allocated region of memory to the compute sled.
- Example 5 includes the subject matter of any of Examples 1-4, and wherein to migrate the VM instance to the other compute sled comprises to transmit one or more threads associated with the workload associated with the VM instance to the other compute sled.
- Example 6 includes the subject matter of any of Examples 1-5, and wherein to associate the region of memory in the memory pool of the memory sled with the other compute sled comprises to transmit a memory allocation request to a memory pool controller of the memory pool that is usable to map the allocated region of memory to the other compute sled.
- Example 7 includes the subject matter of any of Examples 1-6, and wherein to allocate the second set of resources of the compute sled comprises to (i) retrieve a set of resources required by a workload being processed by the VM instance and (ii) allocate the second set of resources of the compute sled as a function of the retrieved required set of resources.
- Example 8 includes the subject matter of any of Examples 1-7, and wherein to allocate the second set of resources of the other compute sled further comprises to (i) identify available resources of each of the plurality of compute sleds and (ii) allocate the second set of resources of the other compute sled as a function of the identified available resources.
- Example 9 includes a method for migrating virtual machines, the comprising identifying, by a compute engine of a resource manager server, a compute sled of a plurality of compute sleds for a virtual machine (VM) instance, wherein each of the compute sleds is communicatively coupled to the resource manager server; allocating, by the compute engine, a first set of resources of the identified compute sled for the VM instance; associating, by the compute engine, a region of memory in a memory pool of a memory sled with the compute sled, wherein the memory sled is communicatively coupled to the resource manager server; creating, by the compute engine, the VM instance on the compute sled; allocating, by the compute engine and in response to determined determination that the VM instance is to be migrated, a second set of resources of another compute sled of the plurality of compute sleds for the VM instance; migrating, by the compute engine, the VM instance to the other compute sled; associating,
- Example 10 includes the subject matter of Example 9, and wherein allocating the first set of resources of the compute sled comprises determining a set of resources required by a workload to be processed by the VM instance; and allocating the first set of resources of the compute sled as a function of the determined required set of resources.
- Example 11 includes the subject matter of any of Examples 9 and 10, and wherein allocating the first set of resources of the compute sled further comprises identifying available resources of each of the plurality of compute sleds; and allocating the first set of resources of the compute sled as a function of the identified available resources.
- Example 12 includes the subject matter of any of Examples 9-11, and wherein associating the region of memory in the memory pool of the memory sled with the compute sled comprises transmitting a memory allocation request to a memory pool controller of the memory pool that is usable to allocate the region of memory and map the allocated region of memory to the compute sled.
- Example 13 includes the subject matter of any of Examples 9-12, and wherein migrating the VM instance to the other compute sled comprises transmitting one or more threads associated with the workload associated with the VM instance to the other compute sled.
- Example 14 includes the subject matter of any of Examples 9-13, and wherein associating the region of memory in the memory pool of the memory sled with the other compute sled comprises transmitting a memory allocation request to a memory pool controller of the memory pool that is usable to map the allocated region of memory to the other compute sled.
- Example 15 includes the subject matter of any of Examples 9-14, and wherein allocating the second set of resources of the compute sled comprises retrieving a set of resources required by a workload being processed by the VM instance; and allocating the second set of resources of the compute sled as a function of the retrieved required set of resources.
- Example 16 includes the subject matter of any of Examples 9-15, and wherein allocating the second set of resources of the other compute sled further comprises identifying available resources of each of the plurality of compute sleds; and allocating the second set of resources of the other compute sled as a function of the identified available resources.
- Example 17 includes one or more machine-readable storage media comprising a plurality of instructions stored thereon that, in response to being executed, cause a resource manager server to perform the method of any of Examples 9-16.
- Example 18 includes a resource manager server for improving throughput in a network, the resource manager server comprising one or more processors; one or more memory devices having stored therein a plurality of instructions that, when executed by the one or more processors, cause the resource manager server to perform the method of any of Examples 9-16.
- Example 19 includes a resource manager server for migrating virtual machines, the resource manager server comprising virtual machine instance management circuitry to identify a compute sled of a plurality of compute sleds for a virtual machine (VM) instance, wherein each of the compute sleds is communicatively coupled to the resource manager server; allocate a first set of resources of the identified compute sled for the VM instance; associate a region of memory in a memory pool of a memory sled with the compute sled, wherein the memory sled is communicatively coupled to the resource manager server; create the VM instance on the compute sled; allocate, in response to determined determination that the VM instance is to be migrated, a second set of resources of another compute sled of the plurality of compute sleds for the VM instance; migrate the VM instance to the other compute sled; associate the region of memory in the memory pool with the other compute sled; and start-up the VM instance on the other compute sled.
- VM virtual machine
- Example 20 includes the subject matter of Example 19, and wherein to allocate the first set of resources of the compute sled comprises to (i) determine a set of resources required by a workload to be processed by the VM instance and (ii) allocate the first set of resources of the compute sled as a function of the determined required set of resources.
- Example 21 includes the subject matter of any of Examples 19 and 20, and wherein to allocate the first set of resources of the compute sled further comprises to (i) identify available resources of each of the plurality of compute sleds and (ii) allocate the first set of resources of the compute sled as a function of the identified available resources.
- Example 22 includes the subject matter of any of Examples 19-21, and wherein to associate the region of memory in the memory pool of the memory sled with the compute sled comprises to transmit a memory allocation request to a memory pool controller of the memory pool that is usable to allocate the region of memory and map the allocated region of memory to the compute sled.
- Example 23 includes the subject matter of any of Examples 19-22, and wherein to migrate the VM instance to the other compute sled comprises to transmit one or more threads associated with the workload associated with the VM instance to the other compute sled.
- Example 24 includes the subject matter of any of Examples 19-23, and wherein to associate the region of memory in the memory pool of the memory sled with the other compute sled comprises to transmit a memory allocation request to a memory pool controller of the memory pool that is usable to map the allocated region of memory to the other compute sled.
- Example 25 includes the subject matter of any of Examples 19-24, and wherein to allocate the second set of resources of the compute sled comprises to (i) retrieve a set of resources required by a workload being processed by the VM instance and (ii) allocate the second set of resources of the compute sled as a function of the retrieved required set of resources.
- Example 26 includes the subject matter of any of Examples 19-25, and wherein to allocate the second set of resources of the other compute sled further comprises to (i) identify available resources of each of the plurality of compute sleds and (ii) allocate the second set of resources of the other compute sled as a function of the identified available resources.
- Example 27 includes a resource manager server for migrating virtual machines, the resource manager server comprising circuitry for identifying, by a compute engine of the resource manager server, a compute sled of a plurality of compute sleds for a virtual machine (VM) instance, wherein each of the compute sleds is communicatively coupled to the resource manager server; circuitry for allocating, by the compute engine, a first set of resources of the identified compute sled for the VM instance; means for associating, by the compute engine, a region of memory in a memory pool of a memory sled with the compute sled, wherein the memory sled is communicatively coupled to the resource manager server; circuitry for creating, by the compute engine, the VM instance on the compute sled; circuitry for allocating, by the compute engine and in response to determined determination that the VM instance is to be migrated, a second set of resources of another compute sled of the plurality of compute sleds for the VM instance; circuitry for migrating,
- Example 28 includes the subject matter of Example 27, and wherein the circuitry for allocating the first set of resources of the compute sled comprises means for determining a set of resources required by a workload to be processed by the VM instance; and circuitry for allocating the first set of resources of the compute sled as a function of the determined required set of resources.
- Example 29 includes the subject matter of any of Examples 27 and 28, and wherein the circuitry for allocating the first set of resources of the compute sled further comprises means for identifying available resources of each of the plurality of compute sleds; and circuitry for allocating the first set of resources of the compute sled as a function of the identified available resources.
- Example 30 includes the subject matter of any of Examples 27-29, and wherein the means for associating the region of memory in the memory pool of the memory sled with the compute sled comprises means for transmitting a memory allocation request to a memory pool controller of the memory pool that is usable to allocate the region of memory and map the allocated region of memory to the compute sled.
- Example 31 includes the subject matter of any of Examples 27-30, and wherein the circuitry for migrating the VM instance to the other compute sled comprises circuitry for transmitting one or more threads associated with the workload associated with the VM instance to the other compute sled.
- Example 32 includes the subject matter of any of Examples 27-31, and wherein the means for associating the region of memory in the memory pool of the memory sled with the other compute sled comprises means for transmitting a memory allocation request to a memory pool controller of the memory pool that is usable to map the allocated region of memory to the other compute sled.
- Example 33 includes the subject matter of any of Examples 27-32, and wherein the circuitry for allocating the second set of resources of the compute sled comprises circuitry for retrieving a set of resources required by a workload being processed by the VM instance; and circuitry for allocating the second set of resources of the compute sled as a function of the retrieved required set of resources.
- Example 34 includes the subject matter of any of Examples 27-33, and wherein the circuitry for allocating the second set of resources of the other compute sled further comprises means for identifying available resources of each of the plurality of compute sleds; and circuitry for allocating the second set of resources of the other compute sled as a function of the identified available resources.
Abstract
Description
- The present application claims the benefit of U.S. Provisional Patent Application No. 62/427,268, filed Nov. 29, 2016 and Indian Provisional Patent Application No. 201741030632, filed Aug. 30, 2017.
- Network operators and service providers typically rely on various network virtualization technologies to manage complex, large-scale computing environments, such as high-performance computing (HPC) and cloud computing environments. Typically, these computing environments, or data centers, are comprised of a multitude of network computing devices (e.g., servers, switches, routers, etc.) which are configured to perform various operations (e.g., process network traffic through the data center, store data, perform computations, etc.). In order to provide scalability to meet demand and reduce operational costs, certain data center operations are typically run inside containers or virtual machines (VMs) in a virtualized environment of one or more of the network computing devices.
- Oftentimes, for various reasons (e.g., data center closures, compromised server security, disaster recovery, network infrastructure upgrades, etc.), a container or VM being executed on one network computing device needs to be migrated to another. Although container/VM migration can be a useful tool, the migrations typically require the copying of data (e.g., the container/VM requirements, the workload, the stored data associated with the workload, etc.) across the network between the network computing devices. The data copy typically introduces network traffic, resulting in bandwidth consumption that could otherwise be used for other operations.
- The concepts described herein are illustrated by way of example and not by way of limitation in the accompanying figures. For simplicity and clarity of illustration, elements illustrated in the figures are not necessarily drawn to scale. Where considered appropriate, reference labels have been repeated among the figures to indicate corresponding or analogous elements.
-
FIG. 1 is a simplified diagram of at least one embodiment of a data center for executing workloads with disaggregated resources; -
FIG. 2 is a simplified diagram of at least one embodiment of a pod of the data center ofFIG. 1 ; -
FIG. 3 is a perspective view of at least one embodiment of a rack that may be included in the pod ofFIG. 2 ; -
FIG. 4 is a side plan elevation view of the rack ofFIG. 3 ; -
FIG. 5 is a perspective view of the rack ofFIG. 3 having a sled mounted therein; -
FIG. 6 is a is a simplified block diagram of at least one embodiment of a top side of the sled ofFIG. 5 ; -
FIG. 7 is a simplified block diagram of at least one embodiment of a bottom side of the sled ofFIG. 6 ; -
FIG. 8 is a simplified block diagram of at least one embodiment of a compute sled usable in the data center ofFIG. 1 ; -
FIG. 9 is a top perspective view of at least one embodiment of the compute sled ofFIG. 8 ; -
FIG. 10 is a simplified block diagram of at least one embodiment of an accelerator sled usable in the data center ofFIG. 1 ; -
FIG. 11 is a top perspective view of at least one embodiment of the accelerator sled ofFIG. 10 ; -
FIG. 12 is a simplified block diagram of at least one embodiment of a storage sled usable in the data center ofFIG. 1 ; -
FIG. 13 is a top perspective view of at least one embodiment of the storage sled ofFIG. 12 ; -
FIG. 14 is a simplified block diagram of at least one embodiment of a memory sled usable in the data center ofFIG. 1 ; and -
FIG. 15 is a simplified block diagram of a system that may be established within the data center ofFIG. 1 to execute workloads with managed nodes composed of disaggregated resources. -
FIG. 16 is a simplified block diagram of at least one embodiment of a system for migrating virtual machines which includes multiple compute sleds, a memory sled, and a resource manager server; -
FIG. 17 is a simplified block diagram of at least one embodiment of the resource manager server of the system ofFIG. 16 ; -
FIG. 18 is a simplified block diagram of at least one embodiment of one of the compute sleds of the system ofFIG. 16 ; -
FIG. 19 is a simplified block diagram of at least one embodiment of an environment that may be established by the resource manager server ofFIGS. 16 and 17 ; -
FIG. 20 is a simplified flow diagram of at least one embodiment of a method for creating a virtual machine instance that may be performed by the resource manager server ofFIGS. 16, 17, and 19 ; and -
FIG. 21 is a simplified flow diagram of at least one embodiment of a method for migrating a virtual machine instance that may be performed by the resource manager server ofFIGS. 16, 17, and 19 . - While the concepts of the present disclosure are susceptible to various modifications and alternative forms, specific embodiments thereof have been shown by way of example in the drawings and will be described herein in detail. It should be understood, however, that there is no intent to limit the concepts of the present disclosure to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives consistent with the present disclosure and the appended claims.
- References in the specification to “one embodiment,” “an embodiment,” “an illustrative embodiment,” etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may or may not necessarily include that particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described. Additionally, it should be appreciated that items included in a list in the form of “at least one A, B, and C” can mean (A); (B); (C); (A and B); (A and C); (B and C); or (A, B, and C). Similarly, items listed in the form of “at least one of A, B, or C” can mean (A); (B); (C); (A and B); (A and C); (B and C); or (A, B, and C).
- The disclosed embodiments may be implemented, in some cases, in hardware, firmware, software, or any combination thereof. The disclosed embodiments may also be implemented as instructions carried by or stored on a transitory or non-transitory machine-readable (e.g., computer-readable) storage medium, which may be read and executed by one or more processors. A machine-readable storage medium may be embodied as any storage device, mechanism, or other physical structure for storing or transmitting information in a form readable by a machine (e.g., a volatile or non-volatile memory, a media disc, or other media device).
- In the drawings, some structural or method features may be shown in specific arrangements and/or orderings. However, it should be appreciated that such specific arrangements and/or orderings may not be required. Rather, in some embodiments, such features may be arranged in a different manner and/or order than shown in the illustrative figures. Additionally, the inclusion of a structural or method feature in a particular figure is not meant to imply that such feature is required in all embodiments and, in some embodiments, may not be included or may be combined with other features.
- Referring now to
FIG. 1 , adata center 100 in which disaggregated resources may cooperatively execute one or more workloads (e.g., applications on behalf of customers) includesmultiple pods pod spine switches 150 that switch communications among pods (e.g., thepods data center 100. In some embodiments, the sleds may be connected with a fabric using Intel Omni-Path technology. As described in more detail herein, resources within sleds in thedata center 100 may be allocated to a group (referred to herein as a “managed node”) containing resources from one or more other sleds to be collectively utilized in the execution of a workload. The workload can execute as if the resources belonging to the managed node were located on the same sled. The resources in a managed node may even belong to sleds belonging to different racks, and even todifferent pods data center 100 provides more efficient resource usage over typical data centers comprised of hyperconverged servers containing compute, memory, storage and perhaps additional resources). As such, thedata center 100 may provide greater performance (e.g., throughput, operations per second, latency, etc.) than a typical data center that has the same number of resources. - Referring now to
FIG. 2 , thepod 110, in the illustrative embodiment, includes a set ofrows racks 240. Eachrack 240 may house multiple sleds (e.g., sixteen sleds) and provide power and data connections to the housed sleds, as described in more detail herein. In the illustrative embodiment, the racks in eachrow multiple pod switches pod switch 250 includes a set ofports 252 to which the sleds of the racks of thepod 110 are connected and another set ofports 254 that connect thepod 110 to thespine switches 150 to provide connectivity to other pods in thedata center 100. Similarly, thepod switch 260 includes a set ofports 262 to which the sleds of the racks of thepod 110 are connected and a set ofports 264 that connect thepod 110 to thespine switches 150. As such, the use of the pair ofswitches pod 110. For example, if either of theswitches pod 110 may still maintain data communication with the remainder of the data center 100 (e.g., sleds of other pods) through theother switch switches - It should be appreciated that each of the
other pods pod 110 shown in and described in regard toFIG. 2 (e.g., each pod may have rows of racks housing multiple sleds as described above). Additionally, while twopod switches pod - Referring now to
FIGS. 3-5 , eachillustrative rack 240 of thedata center 100 includes two elongated support posts 302, 304, which are arranged vertically. For example, the elongated support posts 302, 304 may extend upwardly from a floor of thedata center 100 when deployed. Therack 240 also includes one or morehorizontal pairs 310 of elongated support arms 312 (identified inFIG. 3 via a dashed ellipse) configured to support a sled of thedata center 100 as discussed below. Oneelongated support arm 312 of the pair ofelongated support arms 312 extends outwardly from theelongated support post 302 and the otherelongated support arm 312 extends outwardly from theelongated support post 304. - In the illustrative embodiments, each sled of the
data center 100 is embodied as a chassis-less sled. That is, each sled has a chassis-less circuit board substrate on which physical resources (e.g., processors, memory, accelerators, storage, etc.) are mounted as discussed in more detail below. As such, therack 240 is configured to receive the chassis-less sleds. For example, eachpair 310 ofelongated support arms 312 defines asled slot 320 of therack 240, which is configured to receive a corresponding chassis-less sled. To do so, each illustrativeelongated support arm 312 includes acircuit board guide 330 configured to receive the chassis-less circuit board substrate of the sled. Eachcircuit board guide 330 is secured to, or otherwise mounted to, atop side 332 of the correspondingelongated support arm 312. For example, in the illustrative embodiment, eachcircuit board guide 330 is mounted at a distal end of the correspondingelongated support arm 312 relative to the correspondingelongated support post circuit board guide 330 may be referenced in each Figure. - Each
circuit board guide 330 includes an inner wall that defines acircuit board slot 380 configured to receive the chassis-less circuit board substrate of asled 400 when thesled 400 is received in thecorresponding sled slot 320 of therack 240. To do so, as shown inFIG. 4 , a user (or robot) aligns the chassis-less circuit board substrate of anillustrative chassis-less sled 400 to asled slot 320. The user, or robot, may then slide the chassis-less circuit board substrate forward into thesled slot 320 such that eachside edge 414 of the chassis-less circuit board substrate is received in a correspondingcircuit board slot 380 of the circuit board guides 330 of thepair 310 ofelongated support arms 312 that define thecorresponding sled slot 320 as shown inFIG. 4 . By having robotically accessible and robotically manipulable sleds comprising disaggregated resources, each type of resource can be upgraded independently of each other and at their own optimized refresh rate. Furthermore, the sleds are configured to blindly mate with power and data communication cables in eachrack 240, enhancing their ability to be quickly removed, upgraded, reinstalled, and/or replaced. As such, in some embodiments, thedata center 100 may operate (e.g., execute workloads, undergo maintenance and/or upgrades, etc.) without human involvement on the data center floor. In other embodiments, a human may facilitate one or more maintenance or upgrade operations in thedata center 100. - It should be appreciated that each
circuit board guide 330 is dual sided. That is, eachcircuit board guide 330 includes an inner wall that defines acircuit board slot 380 on each side of thecircuit board guide 330. In this way, eachcircuit board guide 330 can support a chassis-less circuit board substrate on either side. As such, a single additional elongated support post may be added to therack 240 to turn therack 240 into a two-rack solution that can hold twice asmany sled slots 320 as shown inFIG. 3 . Theillustrative rack 240 includes sevenpairs 310 ofelongated support arms 312 that define a corresponding sevensled slots 320, each configured to receive and support acorresponding sled 400 as discussed above. Of course, in other embodiments, therack 240 may include additional orfewer pairs 310 of elongated support arms 312 (i.e., additional or fewer sled slots 320). It should be appreciated that because thesled 400 is chassis-less, thesled 400 may have an overall height that is different than typical servers. As such, in some embodiments, the height of eachsled slot 320 may be shorter than the height of a typical server (e.g., shorter than a single rank unit, “1 U”). That is, the vertical distance between eachpair 310 ofelongated support arms 312 may be less than a standard rack unit “1 U.” Additionally, due to the relative decrease in height of thesled slots 320, the overall height of therack 240 in some embodiments may be shorter than the height of traditional rack enclosures. For example, in some embodiments, each of the elongated support posts 302, 304 may have a length of six feet or less. Again, in other embodiments, therack 240 may have different dimensions. Further, it should be appreciated that therack 240 does not include any walls, enclosures, or the like. Rather, therack 240 is an enclosure-less rack that is opened to the local environment. Of course, in some cases, an end plate may be attached to one of the elongated support posts 302, 304 in those situations in which therack 240 forms an end-of-row rack in thedata center 100. - In some embodiments, various interconnects may be routed upwardly or downwardly through the elongated support posts 302, 304. To facilitate such routing, each
elongated support post sled slot 320, power interconnects to provide power to eachsled slot 320, and/or other types of interconnects. - The
rack 240, in the illustrative embodiment, includes a support platform on which a corresponding optical data connector (not shown) is mounted. Each optical data connector is associated with acorresponding sled slot 320 and is configured to mate with an optical data connector of acorresponding sled 400 when thesled 400 is received in thecorresponding sled slot 320. In some embodiments, optical connections between components (e.g., sleds, racks, and switches) in thedata center 100 are made with a blind mate optical connection. For example, a door on each cable may prevent dust from contaminating the fiber inside the cable. In the process of connecting to a blind mate optical connector mechanism, the door is pushed open when the end of the cable enters the connector mechanism. Subsequently, the optical fiber inside the cable enters a gel within the connector mechanism and the optical fiber of one cable comes into contact with the optical fiber of another cable within the gel inside the connector mechanism. - The
illustrative rack 240 also includes afan array 370 coupled to the cross-support arms of therack 240. Thefan array 370 includes one or more rows of coolingfans 372, which are aligned in a horizontal line between the elongated support posts 302, 304. In the illustrative embodiment, thefan array 370 includes a row of coolingfans 372 for eachsled slot 320 of therack 240. As discussed above, eachsled 400 does not include any on-board cooling system in the illustrative embodiment and, as such, thefan array 370 provides cooling for eachsled 400 received in therack 240. Eachrack 240, in the illustrative embodiment, also includes a power supply associated with eachsled slot 320. Each power supply is secured to one of theelongated support arms 312 of thepair 310 ofelongated support arms 312 that define thecorresponding sled slot 320. For example, therack 240 may include a power supply coupled or secured to eachelongated support arm 312 extending from theelongated support post 302. Each power supply includes a power connector configured to mate with a power connector of thesled 400 when thesled 400 is received in thecorresponding sled slot 320. In the illustrative embodiment, thesled 400 does not include any on-board power supply and, as such, the power supplies provided in therack 240 supply power to correspondingsleds 400 when mounted to therack 240. - Referring now to
FIG. 6 , thesled 400, in the illustrative embodiment, is configured to be mounted in acorresponding rack 240 of thedata center 100 as discussed above. In some embodiments, eachsled 400 may be optimized or otherwise configured for performing particular tasks, such as compute tasks, acceleration tasks, data storage tasks, etc. For example, thesled 400 may be embodied as acompute sled 800 as discussed below in regard toFIGS. 8-9 , anaccelerator sled 1000 as discussed below in regard toFIGS. 10-11 , astorage sled 1200 as discussed below in regard toFIGS. 12-13 , or as a sled optimized or otherwise configured to perform other specialized tasks, such as amemory sled 1400, discussed below in regard toFIG. 14 . - As discussed above, the
illustrative sled 400 includes a chassis-lesscircuit board substrate 602, which supports various physical resources (e.g., electrical components) mounted thereon. It should be appreciated that thecircuit board substrate 602 is “chassis-less” in that thesled 400 does not include a housing or enclosure. Rather, the chassis-lesscircuit board substrate 602 is open to the local environment. The chassis-lesscircuit board substrate 602 may be formed from any material capable of supporting the various electrical components mounted thereon. For example, in an illustrative embodiment, the chassis-lesscircuit board substrate 602 is formed from an FR-4 glass-reinforced epoxy laminate material. Of course, other materials may be used to form the chassis-lesscircuit board substrate 602 in other embodiments. - As discussed in more detail below, the chassis-less
circuit board substrate 602 includes multiple features that improve the thermal cooling characteristics of the various electrical components mounted on the chassis-lesscircuit board substrate 602. As discussed, the chassis-lesscircuit board substrate 602 does not include a housing or enclosure, which may improve the airflow over the electrical components of thesled 400 by reducing those structures that may inhibit air flow. For example, because the chassis-lesscircuit board substrate 602 is not positioned in an individual housing or enclosure, there is no backplane (e.g., a backplate of the chassis) to the chassis-lesscircuit board substrate 602, which could inhibit air flow across the electrical components. Additionally, the chassis-lesscircuit board substrate 602 has a geometric shape configured to reduce the length of the airflow path across the electrical components mounted to the chassis-lesscircuit board substrate 602. For example, the illustrative chassis-lesscircuit board substrate 602 has awidth 604 that is greater than adepth 606 of the chassis-lesscircuit board substrate 602. In one particular embodiment, for example, the chassis-lesscircuit board substrate 602 has a width of about 21 inches and a depth of about 9 inches, compared to a typical server that has a width of about 17 inches and a depth of about 39 inches. As such, anairflow path 608 that extends from afront edge 610 of the chassis-lesscircuit board substrate 602 toward arear edge 612 has a shorter distance relative to typical servers, which may improve the thermal cooling characteristics of thesled 400. Furthermore, although not illustrated inFIG. 6 , the various physical resources mounted to the chassis-lesscircuit board substrate 602 are mounted in corresponding locations such that no two substantively heat-producing electrical components shadow each other as discussed in more detail below. That is, no two electrical components, which produce appreciable heat during operation (i.e., greater than a nominal heat sufficient enough to adversely impact the cooling of another electrical component), are mounted to the chassis-lesscircuit board substrate 602 linearly in-line with each other along the direction of the airflow path 608 (i.e., along a direction extending from thefront edge 610 toward therear edge 612 of the chassis-less circuit board substrate 602). - As discussed above, the
illustrative sled 400 includes one or morephysical resources 620 mounted to atop side 650 of the chassis-lesscircuit board substrate 602. Although twophysical resources 620 are shown inFIG. 6 , it should be appreciated that thesled 400 may include one, two, or morephysical resources 620 in other embodiments. Thephysical resources 620 may be embodied as any type of processor, controller, or other compute circuit capable of performing various tasks such as compute functions and/or controlling the functions of thesled 400 depending on, for example, the type or intended functionality of thesled 400. For example, as discussed in more detail below, thephysical resources 620 may be embodied as high-performance processors in embodiments in which thesled 400 is embodied as a compute sled, as accelerator co-processors or circuits in embodiments in which thesled 400 is embodied as an accelerator sled, storage controllers in embodiments in which thesled 400 is embodied as a storage sled, or a set of memory devices in embodiments in which thesled 400 is embodied as a memory sled. - The
sled 400 also includes one or more additionalphysical resources 630 mounted to thetop side 650 of the chassis-lesscircuit board substrate 602. In the illustrative embodiment, the additional physical resources include a network interface controller (NIC) as discussed in more detail below. Of course, depending on the type and functionality of thesled 400, thephysical resources 630 may include additional or other electrical components, circuits, and/or devices in other embodiments. - The
physical resources 620 are communicatively coupled to thephysical resources 630 via an input/output (I/O)subsystem 622. The I/O subsystem 622 may be embodied as circuitry and/or components to facilitate input/output operations with thephysical resources 620, thephysical resources 630, and/or other components of thesled 400. For example, the I/O subsystem 622 may be embodied as, or otherwise include, memory controller hubs, input/output control hubs, integrated sensor hubs, firmware devices, communication links (e.g., point-to-point links, bus links, wires, cables, light guides, printed circuit board traces, etc.), and/or other components and subsystems to facilitate the input/output operations. In the illustrative embodiment, the I/O subsystem 622 is embodied as, or otherwise includes, a double data rate 4 (DDR4) data bus or a DDR5 data bus. - In some embodiments, the
sled 400 may also include a resource-to-resource interconnect 624. The resource-to-resource interconnect 624 may be embodied as any type of communication interconnect capable of facilitating resource-to-resource communications. In the illustrative embodiment, the resource-to-resource interconnect 624 is embodied as a high-speed point-to-point interconnect (e.g., faster than the I/O subsystem 622). For example, the resource-to-resource interconnect 624 may be embodied as a QuickPath Interconnect (QPI), an UltraPath Interconnect (UPI), or other high-speed point-to-point interconnect dedicated to resource-to-resource communications. - The
sled 400 also includes apower connector 640 configured to mate with a corresponding power connector of therack 240 when thesled 400 is mounted in thecorresponding rack 240. Thesled 400 receives power from a power supply of therack 240 via thepower connector 640 to supply power to the various electrical components of thesled 400. That is, thesled 400 does not include any local power supply (i.e., an on-board power supply) to provide power to the electrical components of thesled 400. The exclusion of a local or on-board power supply facilitates the reduction in the overall footprint of the chassis-lesscircuit board substrate 602, which may increase the thermal cooling characteristics of the various electrical components mounted on the chassis-lesscircuit board substrate 602 as discussed above. In some embodiments, power is provided to theprocessors 820 through vias directly under the processors 820 (e.g., through thebottom side 750 of the chassis-less circuit board substrate 602), providing an increased thermal budget, additional current and/or voltage, and better voltage control over typical boards. - In some embodiments, the
sled 400 may also include mountingfeatures 642 configured to mate with a mounting arm, or other structure, of a robot to facilitate the placement of the sled 600 in arack 240 by the robot. The mounting features 642 may be embodied as any type of physical structures that allow the robot to grasp thesled 400 without damaging the chassis-lesscircuit board substrate 602 or the electrical components mounted thereto. For example, in some embodiments, the mounting features 642 may be embodied as non-conductive pads attached to the chassis-lesscircuit board substrate 602. In other embodiments, the mounting features may be embodied as brackets, braces, or other similar structures attached to the chassis-lesscircuit board substrate 602. The particular number, shape, size, and/or make-up of the mountingfeature 642 may depend on the design of the robot configured to manage thesled 400. - Referring now to
FIG. 7 , in addition to thephysical resources 630 mounted on thetop side 650 of the chassis-lesscircuit board substrate 602, thesled 400 also includes one ormore memory devices 720 mounted to abottom side 750 of the chassis-lesscircuit board substrate 602. That is, the chassis-lesscircuit board substrate 602 is embodied as a double-sided circuit board. Thephysical resources 620 are communicatively coupled to thememory devices 720 via the I/O subsystem 622. For example, thephysical resources 620 and thememory devices 720 may be communicatively coupled by one or more vias extending through the chassis-lesscircuit board substrate 602. Eachphysical resource 620 may be communicatively coupled to a different set of one ormore memory devices 720 in some embodiments. Alternatively, in other embodiments, eachphysical resource 620 may be communicatively coupled to eachmemory devices 720. - The
memory devices 720 may be embodied as any type of memory device capable of storing data for thephysical resources 620 during operation of thesled 400, such as any type of volatile (e.g., dynamic random access memory (DRAM), etc.) or non-volatile memory. Volatile memory may be a storage medium that requires power to maintain the state of data stored by the medium. Non-limiting examples of volatile memory may include various types of random access memory (RAM), such as dynamic random access memory (DRAM) or static random access memory (SRAM). One particular type of DRAM that may be used in a memory module is synchronous dynamic random access memory (SDRAM). In particular embodiments, DRAM of a memory component may comply with a standard promulgated by JEDEC, such as JESD79F for DDR SDRAM, JESD79-2F for DDR2 SDRAM, JESD79-3F for DDR3 SDRAM, JESD79-4A for DDR4 SDRAM, JESD209 for Low Power DDR (LPDDR), JESD209-2 for LPDDR2, JESD209-3 for LPDDR3, and JESD209-4 for LPDDR4 (these standards are available at www.jedec.org). Such standards (and similar standards) may be referred to as DDR-based standards and communication interfaces of the storage devices that implement such standards may be referred to as DDR-based interfaces. - In one embodiment, the memory device is a block addressable memory device, such as those based on NAND or NOR technologies. A memory device may also include next-generation nonvolatile devices, such as Intel 3D XPoint™ memory or other byte addressable write-in-place nonvolatile memory devices. In one embodiment, the memory device may be or may include memory devices that use chalcogenide glass, multi-threshold level NAND flash memory, NOR flash memory, single or multi-level Phase Change Memory (PCM), a resistive memory, nanowire memory, ferroelectric transistor random access memory (FeTRAM), anti-ferroelectric memory, magnetoresistive random access memory (MRAM) memory that incorporates memristor technology, resistive memory including the metal oxide base, the oxygen vacancy base and the conductive bridge Random Access Memory (CB-RAM), or spin transfer torque (STT)-MRAM, a spintronic magnetic junction memory based device, a magnetic tunneling junction (MTJ) based device, a DW (Domain Wall) and SOT (Spin Orbit Transfer) based device, a thyristor based memory device, or a combination of any of the above, or other memory. The memory device may refer to the die itself and/or to a packaged memory product. In some embodiments, the memory device may comprise a transistor-less stackable cross point architecture in which memory cells sit at the intersection of word lines and bit lines and are individually addressable and in which bit storage is based on a change in bulk resistance.
- Referring now to
FIG. 8 , in some embodiments, thesled 400 may be embodied as acompute sled 800. Thecompute sled 800 is optimized, or otherwise configured, to perform compute tasks. Of course, as discussed above, thecompute sled 800 may rely on other sleds, such as acceleration sleds and/or storage sleds, to perform such compute tasks. Thecompute sled 800 includes various physical resources (e.g., electrical components) similar to the physical resources of thesled 400, which have been identified inFIG. 8 using the same reference numbers. The description of such components provided above in regard toFIGS. 6 and 7 applies to the corresponding components of thecompute sled 800 and is not repeated herein for clarity of the description of thecompute sled 800. - In the
illustrative compute sled 800, thephysical resources 620 are embodied asprocessors 820. Although only twoprocessors 820 are shown inFIG. 8 , it should be appreciated that thecompute sled 800 may includeadditional processors 820 in other embodiments. Illustratively, theprocessors 820 are embodied as high-performance processors 820 and may be configured to operate at a relatively high power rating. Although theprocessors 820 generate additional heat operating at power ratings greater than typical processors (which operate at around 155-230 W), the enhanced thermal cooling characteristics of the chassis-lesscircuit board substrate 602 discussed above facilitate the higher power operation. For example, in the illustrative embodiment, theprocessors 820 are configured to operate at a power rating of at least 250 W. In some embodiments, theprocessors 820 may be configured to operate at a power rating of at least 350 W. - In some embodiments, the
compute sled 800 may also include a processor-to-processor interconnect 842. Similar to the resource-to-resource interconnect 624 of thesled 400 discussed above, the processor-to-processor interconnect 842 may be embodied as any type of communication interconnect capable of facilitating processor-to-processor interconnect 842 communications. In the illustrative embodiment, the processor-to-processor interconnect 842 is embodied as a high-speed point-to-point interconnect (e.g., faster than the I/O subsystem 622). For example, the processor-to-processor interconnect 842 may be embodied as a QuickPath Interconnect (QPI), an UltraPath Interconnect (UPI), or other high-speed point-to-point interconnect dedicated to processor-to-processor communications. - The
compute sled 800 also includes acommunication circuit 830. Theillustrative communication circuit 830 includes a network interface controller (NIC) 832, which may also be referred to as a host fabric interface (HFI). TheNIC 832 may be embodied as, or otherwise include, any type of integrated circuit, discrete circuits, controller chips, chipsets, add-in-boards, daughtercards, network interface cards, other devices that may be used by thecompute sled 800 to connect with another compute device (e.g., with other sleds 400). In some embodiments, theNIC 832 may be embodied as part of a system-on-a-chip (SoC) that includes one or more processors, or included on a multichip package that also contains one or more processors. In some embodiments, theNIC 832 may include a local processor (not shown) and/or a local memory (not shown) that are both local to theNIC 832. In such embodiments, the local processor of theNIC 832 may be capable of performing one or more of the functions of theprocessors 820. Additionally or alternatively, in such embodiments, the local memory of theNIC 832 may be integrated into one or more components of the compute sled at the board level, socket level, chip level, and/or other levels. - The
communication circuit 830 is communicatively coupled to anoptical data connector 834. Theoptical data connector 834 is configured to mate with a corresponding optical data connector of therack 240 when thecompute sled 800 is mounted in therack 240. Illustratively, theoptical data connector 834 includes a plurality of optical fibers which lead from a mating surface of theoptical data connector 834 to anoptical transceiver 836. Theoptical transceiver 836 is configured to convert incoming optical signals from the rack-side optical data connector to electrical signals and to convert electrical signals to outgoing optical signals to the rack-side optical data connector. Although shown as forming part of theoptical data connector 834 in the illustrative embodiment, theoptical transceiver 836 may form a portion of thecommunication circuit 830 in other embodiments. - In some embodiments, the
compute sled 800 may also include anexpansion connector 840. In such embodiments, theexpansion connector 840 is configured to mate with a corresponding connector of an expansion chassis-less circuit board substrate to provide additional physical resources to thecompute sled 800. The additional physical resources may be used, for example, by theprocessors 820 during operation of thecompute sled 800. The expansion chassis-less circuit board substrate may be substantially similar to the chassis-lesscircuit board substrate 602 discussed above and may include various electrical components mounted thereto. The particular electrical components mounted to the expansion chassis-less circuit board substrate may depend on the intended functionality of the expansion chassis-less circuit board substrate. For example, the expansion chassis-less circuit board substrate may provide additional compute resources, memory resources, and/or storage resources. As such, the additional physical resources of the expansion chassis-less circuit board substrate may include, but is not limited to, processors, memory devices, storage devices, and/or accelerator circuits including, for example, field programmable gate arrays (FPGA), application-specific integrated circuits (ASICs), security co-processors, graphics processing units (GPUs), machine learning circuits, or other specialized processors, controllers, devices, and/or circuits. - Referring now to
FIG. 9 , an illustrative embodiment of thecompute sled 800 is shown. As shown, theprocessors 820,communication circuit 830, andoptical data connector 834 are mounted to thetop side 650 of the chassis-lesscircuit board substrate 602. Any suitable attachment or mounting technology may be used to mount the physical resources of thecompute sled 800 to the chassis-lesscircuit board substrate 602. For example, the various physical resources may be mounted in corresponding sockets (e.g., a processor socket), holders, or brackets. In some cases, some of the electrical components may be directly mounted to the chassis-lesscircuit board substrate 602 via soldering or similar techniques. - As discussed above, the
individual processors 820 andcommunication circuit 830 are mounted to thetop side 650 of the chassis-lesscircuit board substrate 602 such that no two heat-producing, electrical components shadow each other. In the illustrative embodiment, theprocessors 820 andcommunication circuit 830 are mounted in corresponding locations on thetop side 650 of the chassis-lesscircuit board substrate 602 such that no two of those physical resources are linearly in-line with others along the direction of theairflow path 608. It should be appreciated that, although theoptical data connector 834 is in-line with thecommunication circuit 830, theoptical data connector 834 produces no or nominal heat during operation. - The
memory devices 720 of thecompute sled 800 are mounted to thebottom side 750 of the of the chassis-lesscircuit board substrate 602 as discussed above in regard to thesled 400. Although mounted to thebottom side 750, thememory devices 720 are communicatively coupled to theprocessors 820 located on thetop side 650 via the I/O subsystem 622. Because the chassis-lesscircuit board substrate 602 is embodied as a double-sided circuit board, thememory devices 720 and theprocessors 820 may be communicatively coupled by one or more vias, connectors, or other mechanisms extending through the chassis-lesscircuit board substrate 602. Of course, eachprocessor 820 may be communicatively coupled to a different set of one ormore memory devices 720 in some embodiments. Alternatively, in other embodiments, eachprocessor 820 may be communicatively coupled to eachmemory device 720. In some embodiments, thememory devices 720 may be mounted to one or more memory mezzanines on the bottom side of the chassis-lesscircuit board substrate 602 and may interconnect with acorresponding processor 820 through a ball-grid array. - Each of the
processors 820 includes aheatsink 850 secured thereto. Due to the mounting of thememory devices 720 to thebottom side 750 of the chassis-less circuit board substrate 602 (as well as the vertical spacing of thesleds 400 in the corresponding rack 240), thetop side 650 of the chassis-lesscircuit board substrate 602 includes additional “free” area or space that facilitates the use ofheatsinks 850 having a larger size relative to traditional heatsinks used in typical servers. Additionally, due to the improved thermal cooling characteristics of the chassis-lesscircuit board substrate 602, none of theprocessor heatsinks 850 include cooling fans attached thereto. That is, each of theheatsinks 850 is embodied as a fan-less heatsinks. - Referring now to
FIG. 10 , in some embodiments, thesled 400 may be embodied as anaccelerator sled 1000. Theaccelerator sled 1000 is optimized, or otherwise configured, to perform specialized compute tasks, such as machine learning, encryption, hashing, or other computational-intensive task. In some embodiments, for example, acompute sled 800 may offload tasks to theaccelerator sled 1000 during operation. Theaccelerator sled 1000 includes various components similar to components of thesled 400 and/or computesled 800, which have been identified inFIG. 10 using the same reference numbers. The description of such components provided above in regard toFIGS. 6, 7, and 8 apply to the corresponding components of theaccelerator sled 1000 and is not repeated herein for clarity of the description of theaccelerator sled 1000. - In the
illustrative accelerator sled 1000, thephysical resources 620 are embodied asaccelerator circuits 1020. Although only twoaccelerator circuits 1020 are shown inFIG. 10 , it should be appreciated that theaccelerator sled 1000 may includeadditional accelerator circuits 1020 in other embodiments. For example, as shown inFIG. 11 , theaccelerator sled 1000 may include fouraccelerator circuits 1020 in some embodiments. Theaccelerator circuits 1020 may be embodied as any type of processor, co-processor, compute circuit, or other device capable of performing compute or processing operations. For example, theaccelerator circuits 1020 may be embodied as, for example, field programmable gate arrays (FPGA), application-specific integrated circuits (ASICs), security co-processors, graphics processing units (GPUs), machine learning circuits, or other specialized processors, controllers, devices, and/or circuits. - In some embodiments, the
accelerator sled 1000 may also include an accelerator-to-accelerator interconnect 1042. Similar to the resource-to-resource interconnect 624 of the sled 600 discussed above, the accelerator-to-accelerator interconnect 1042 may be embodied as any type of communication interconnect capable of facilitating accelerator-to-accelerator communications. In the illustrative embodiment, the accelerator-to-accelerator interconnect 1042 is embodied as a high-speed point-to-point interconnect (e.g., faster than the I/O subsystem 622). For example, the accelerator-to-accelerator interconnect 1042 may be embodied as a QuickPath Interconnect (QPI), an UltraPath Interconnect (UPI), or other high-speed point-to-point interconnect dedicated to processor-to-processor communications. In some embodiments, theaccelerator circuits 1020 may be daisy-chained with aprimary accelerator circuit 1020 connected to theNIC 832 andmemory 720 through the I/O subsystem 622 and asecondary accelerator circuit 1020 connected to theNIC 832 andmemory 720 through aprimary accelerator circuit 1020. - Referring now to
FIG. 11 , an illustrative embodiment of theaccelerator sled 1000 is shown. As discussed above, theaccelerator circuits 1020,communication circuit 830, andoptical data connector 834 are mounted to thetop side 650 of the chassis-lesscircuit board substrate 602. Again, theindividual accelerator circuits 1020 andcommunication circuit 830 are mounted to thetop side 650 of the chassis-lesscircuit board substrate 602 such that no two heat-producing, electrical components shadow each other as discussed above. Thememory devices 720 of theaccelerator sled 1000 are mounted to thebottom side 750 of the of the chassis-lesscircuit board substrate 602 as discussed above in regard to the sled 600. Although mounted to thebottom side 750, thememory devices 720 are communicatively coupled to theaccelerator circuits 1020 located on thetop side 650 via the I/O subsystem 622 (e.g., through vias). Further, each of theaccelerator circuits 1020 may include a heatsink 1070 that is larger than a traditional heatsink used in a server. As discussed above with reference to the heatsinks 870, the heatsinks 1070 may be larger than tradition heatsinks because of the “free” area provided by thememory devices 750 being located on thebottom side 750 of the chassis-lesscircuit board substrate 602 rather than on thetop side 650. - Referring now to
FIG. 12 , in some embodiments, thesled 400 may be embodied as astorage sled 1200. Thestorage sled 1200 is optimized, or otherwise configured, to store data in adata storage 1250 local to thestorage sled 1200. For example, during operation, acompute sled 800 or anaccelerator sled 1000 may store and retrieve data from thedata storage 1250 of thestorage sled 1200. Thestorage sled 1200 includes various components similar to components of thesled 400 and/or thecompute sled 800, which have been identified inFIG. 12 using the same reference numbers. The description of such components provided above in regard toFIGS. 6, 7 , and 8 apply to the corresponding components of thestorage sled 1200 and is not repeated herein for clarity of the description of thestorage sled 1200. - In the
illustrative storage sled 1200, thephysical resources 620 are embodied asstorage controllers 1220. Although only twostorage controllers 1220 are shown inFIG. 12 , it should be appreciated that thestorage sled 1200 may includeadditional storage controllers 1220 in other embodiments. Thestorage controllers 1220 may be embodied as any type of processor, controller, or control circuit capable of controlling the storage and retrieval of data into thedata storage 1250 based on requests received via thecommunication circuit 830. In the illustrative embodiment, thestorage controllers 1220 are embodied as relatively low-power processors or controllers. For example, in some embodiments, thestorage controllers 1220 may be configured to operate at a power rating of about 75 watts. - In some embodiments, the
storage sled 1200 may also include a controller-to-controller interconnect 1242. Similar to the resource-to-resource interconnect 624 of thesled 400 discussed above, the controller-to-controller interconnect 1242 may be embodied as any type of communication interconnect capable of facilitating controller-to-controller communications. In the illustrative embodiment, the controller-to-controller interconnect 1242 is embodied as a high-speed point-to-point interconnect (e.g., faster than the I/O subsystem 622). For example, the controller-to-controller interconnect 1242 may be embodied as a QuickPath Interconnect (QPI), an UltraPath Interconnect (UPI), or other high-speed point-to-point interconnect dedicated to processor-to-processor communications. - Referring now to
FIG. 13 , an illustrative embodiment of thestorage sled 1200 is shown. In the illustrative embodiment, thedata storage 1250 is embodied as, or otherwise includes, astorage cage 1252 configured to house one or more solid state drives (SSDs) 1254. To do so, thestorage cage 1252 includes a number of mountingslots 1256, each of which is configured to receive a correspondingsolid state drive 1254. Each of the mountingslots 1256 includes a number of drive guides 1258 that cooperate to define anaccess opening 1260 of thecorresponding mounting slot 1256. Thestorage cage 1252 is secured to the chassis-lesscircuit board substrate 602 such that the access openings face away from (i.e., toward the front of) the chassis-lesscircuit board substrate 602. As such, solid state drives 1254 are accessible while thestorage sled 1200 is mounted in a corresponding rack 204. For example, asolid state drive 1254 may be swapped out of a rack 240 (e.g., via a robot) while thestorage sled 1200 remains mounted in thecorresponding rack 240. - The
storage cage 1252 illustratively includes sixteen mountingslots 1256 and is capable of mounting and storing sixteen solid state drives 1254. Of course, thestorage cage 1252 may be configured to store additional or fewer solid state drives 1254 in other embodiments. Additionally, in the illustrative embodiment, the solid state drivers are mounted vertically in thestorage cage 1252, but may be mounted in thestorage cage 1252 in a different orientation in other embodiments. Eachsolid state drive 1254 may be embodied as any type of data storage device capable of storing long term data. To do so, the solid state drives 1254 may include volatile and non-volatile memory devices discussed above. - As shown in
FIG. 13 , thestorage controllers 1220, thecommunication circuit 830, and theoptical data connector 834 are illustratively mounted to thetop side 650 of the chassis-lesscircuit board substrate 602. Again, as discussed above, any suitable attachment or mounting technology may be used to mount the electrical components of thestorage sled 1200 to the chassis-lesscircuit board substrate 602 including, for example, sockets (e.g., a processor socket), holders, brackets, soldered connections, and/or other mounting or securing techniques. - As discussed above, the
individual storage controllers 1220 and thecommunication circuit 830 are mounted to thetop side 650 of the chassis-lesscircuit board substrate 602 such that no two heat-producing, electrical components shadow each other. For example, thestorage controllers 1220 and thecommunication circuit 830 are mounted in corresponding locations on thetop side 650 of the chassis-lesscircuit board substrate 602 such that no two of those electrical components are linearly in-line with other along the direction of theairflow path 608. - The
memory devices 720 of thestorage sled 1200 are mounted to thebottom side 750 of the of the chassis-lesscircuit board substrate 602 as discussed above in regard to thesled 400. Although mounted to thebottom side 750, thememory devices 720 are communicatively coupled to thestorage controllers 1220 located on thetop side 650 via the I/O subsystem 622. Again, because the chassis-lesscircuit board substrate 602 is embodied as a double-sided circuit board, thememory devices 720 and thestorage controllers 1220 may be communicatively coupled by one or more vias, connectors, or other mechanisms extending through the chassis-lesscircuit board substrate 602. Each of thestorage controllers 1220 includes a heatsink 1270 secured thereto. As discussed above, due to the improved thermal cooling characteristics of the chassis-lesscircuit board substrate 602 of thestorage sled 1200, none of the heatsinks 1270 include cooling fans attached thereto. That is, each of the heatsinks 1270 is embodied as a fan-less heatsink. - Referring now to
FIG. 14 , in some embodiments, thesled 400 may be embodied as amemory sled 1400. Thestorage sled 1400 is optimized, or otherwise configured, to provide other sleds 400 (e.g., compute sleds 800, accelerator sleds 1000, etc.) with access to a pool of memory (e.g., in two ormore sets memory sled 1200. For example, during operation, acompute sled 800 or anaccelerator sled 1000 may remotely write to and/or read from one or more of the memory sets 1430, 1432 of thememory sled 1200 using a logical address space that maps to physical addresses in the memory sets 1430, 1432. Thememory sled 1400 includes various components similar to components of thesled 400 and/or thecompute sled 800, which have been identified inFIG. 14 using the same reference numbers. The description of such components provided above in regard toFIGS. 6, 7, and 8 apply to the corresponding components of thememory sled 1400 and is not repeated herein for clarity of the description of thememory sled 1400. - In the
illustrative memory sled 1400, thephysical resources 620 are embodied asmemory controllers 1420. Although only twomemory controllers 1420 are shown inFIG. 14 , it should be appreciated that thememory sled 1400 may includeadditional memory controllers 1420 in other embodiments. Thememory controllers 1420 may be embodied as any type of processor, controller, or control circuit capable of controlling the writing and reading of data into the memory sets 1430, 1432 based on requests received via thecommunication circuit 830. In the illustrative embodiment, eachstorage controller 1220 is connected to acorresponding memory set memory devices 720 within the correspondingmemory set sled 400 that has sent a request to thememory sled 1400 to perform a memory access operation (e.g., read or write). - In some embodiments, the
memory sled 1400 may also include a controller-to-controller interconnect 1442. Similar to the resource-to-resource interconnect 624 of thesled 400 discussed above, the controller-to-controller interconnect 1442 may be embodied as any type of communication interconnect capable of facilitating controller-to-controller communications. In the illustrative embodiment, the controller-to-controller interconnect 1442 is embodied as a high-speed point-to-point interconnect (e.g., faster than the I/O subsystem 622). For example, the controller-to-controller interconnect 1442 may be embodied as a QuickPath Interconnect (QPI), an UltraPath Interconnect (UPI), or other high-speed point-to-point interconnect dedicated to processor-to-processor communications. As such, in some embodiments, amemory controller 1420 may access, through the controller-to-controller interconnect 1442, memory that is within the memory set 1432 associated with anothermemory controller 1420. In some embodiments, a scalable memory controller is made of multiple smaller memory controllers, referred to herein as “chiplets”, on a memory sled (e.g., the memory sled 1400). The chiplets may be interconnected (e.g., using EMIB (Embedded Multi-Die Interconnect Bridge)). The combined chiplet memory controller may scale up to a relatively large number of memory controllers and I/O ports, (e.g., up to 16 memory channels). In some embodiments, thememory controllers 1420 may implement a memory interleave (e.g., one memory address is mapped to thememory set 1430, the next memory address is mapped to thememory set 1432, and the third address is mapped to thememory set 1430, etc.). The interleaving may be managed within thememory controllers 1420, or from CPU sockets (e.g., of the compute sled 800) across network links to the memory sets 1430, 1432, and may improve the latency associated with performing memory access operations as compared to accessing contiguous memory addresses from the same memory device. - Further, in some embodiments, the
memory sled 1400 may be connected to one or more other sleds 400 (e.g., in thesame rack 240 or an adjacent rack 240) through a waveguide, using thewaveguide connector 1480. In the illustrative embodiment, the waveguides are 64 millimeter waveguides that provide 16 Rx (i.e., receive) lanes and 16 Rt (i.e., transmit) lanes. Each lane, in the illustrative embodiment, is either 16 Ghz or 32 Ghz. In other embodiments, the frequencies may be different. Using a waveguide may provide high throughput access to the memory pool (e.g., the memory sets 1430, 1432) to another sled (e.g., asled 400 in thesame rack 240 or anadjacent rack 240 as the memory sled 1400) without adding to the load on theoptical data connector 834. - Referring now to
FIG. 15 , a system for executing one or more workloads (e.g., applications) may be implemented in accordance with thedata center 100. In the illustrative embodiment, thesystem 1510 includes anorchestrator server 1520, which may be embodied as a managed node comprising a compute device (e.g., a compute sled 800) executing management software (e.g., a cloud operating environment, such as OpenStack) that is communicatively coupled tomultiple sleds 400 including a large number of compute sleds 1530 (e.g., each similar to the compute sled 800), memory sleds 1540 (e.g., each similar to the memory sled 1400), accelerator sleds 1550 (e.g., each similar to the memory sled 1000), and storage sleds 1560 (e.g., each similar to the storage sled 1200). One or more of thesleds node 1570, such as by theorchestrator server 1520, to collectively perform a workload (e.g., anapplication 1532 executed in a virtual machine or in a container). The managednode 1570 may be embodied as an assembly ofphysical resources 620, such asprocessors 820,memory resources 720,accelerator circuits 1020, ordata storage 1250, from the same ordifferent sleds 400. Further, the managed node may be established, defined, or “spun up” by theorchestrator server 1520 at the time a workload is to be assigned to the managed node or at any other time, and may exist regardless of whether any workloads are presently assigned to the managed node. In the illustrative embodiment, theorchestrator server 1520 may selectively allocate and/or deallocatephysical resources 620 from thesleds 400 and/or add or remove one ormore sleds 400 from the managednode 1570 as a function of quality of service (QoS) targets (e.g., performance targets associated with a throughput, latency, instructions per second, etc.) associated with a service level agreement for the workload (e.g., the application 1532). In doing so, theorchestrator server 1520 may receive telemetry data indicative of performance conditions (e.g., throughput, latency, instructions per second, etc.) in eachsled 400 of the managednode 1570 and compare the telemetry data to the quality of service targets to determine whether the quality of service targets are being satisfied. If the so, theorchestrator server 1520 may additionally determine whether one or more physical resources may be deallocated from the managednode 1570 while still satisfying the QoS targets, thereby freeing up those physical resources for use in another managed node (e.g., to execute a different workload). Alternatively, if the QoS targets are not presently satisfied, theorchestrator server 1520 may determine to dynamically allocate additional physical resources to assist in the execution of the workload (e.g., the application 1532) while the workload is executing - Additionally, in some embodiments, the
orchestrator server 1520 may identify trends in the resource utilization of the workload (e.g., the application 1532), such as by identifying phases of execution (e.g., time periods in which different operations, each having different resource utilizations characteristics, are performed) of the workload (e.g., the application 1532) and pre-emptively identifying available resources in thedata center 100 and allocating them to the managed node 1570 (e.g., within a predefined time period of the associated phase beginning). In some embodiments, theorchestrator server 1520 may model performance based on various latencies and a distribution scheme to place workloads among compute sleds and other resources (e.g., accelerator sleds, memory sleds, storage sleds) in thedata center 100. For example, theorchestrator server 1520 may utilize a model that accounts for the performance of resources on the sleds 400 (e.g., FPGA performance, memory access latency, etc.) and the performance (e.g., congestion, latency, bandwidth) of the path through the network to the resource (e.g., FPGA). As such, theorchestrator server 1520 may determine which resource(s) should be used with which workloads based on the total latency associated with each potential resource available in the data center 100 (e.g., the latency associated with the performance of the resource itself in addition to the latency associated with the path through the network between the compute sled executing the workload and thesled 400 on which the resource is located). - In some embodiments, the
orchestrator server 1520 may generate a map of heat generation in thedata center 100 using telemetry data (e.g., temperatures, fan speeds, etc.) reported from thesleds 400 and allocate resources to managed nodes as a function of the map of heat generation and predicted heat generation associated with different workloads, to maintain a target temperature and heat distribution in thedata center 100. Additionally or alternatively, in some embodiments, theorchestrator server 1520 may organize received telemetry data into a hierarchical model that is indicative of a relationship between the managed nodes (e.g., a spatial relationship such as the physical locations of the resources of the managed nodes within thedata center 100 and/or a functional relationship, such as groupings of the managed nodes by the customers the managed nodes provide services for, the types of functions typically performed by the managed nodes, managed nodes that typically share or exchange workloads among each other, etc.). Based on differences in the physical locations and resources in the managed nodes, a given workload may exhibit different resource utilizations (e.g., cause a different internal temperature, use a different percentage of processor or memory capacity) across the resources of different managed nodes. Theorchestrator server 1520 may determine the differences based on the telemetry data stored in the hierarchical model and factor the differences into a prediction of future resource utilization of a workload if the workload is reassigned from one managed node to another managed node, to accurately balance resource utilization in thedata center 100. - To reduce the computational load on the
orchestrator server 1520 and the data transfer load on the network, in some embodiments, theorchestrator server 1520 may send self-test information to thesleds 400 to enable eachsled 400 to locally (e.g., on the sled 400) determine whether telemetry data generated by thesled 400 satisfies one or more conditions (e.g., an available capacity that satisfies a predefined threshold, a temperature that satisfies a predefined threshold, etc.). Eachsled 400 may then report back a simplified result (e.g., yes or no) to theorchestrator server 1520, which theorchestrator server 1520 may utilize in determining the allocation of resources to managed nodes. - Referring now to
FIG. 16 , asystem 1600 for migrating virtual machines may be implemented in accordance with thedata center 100 described above with reference toFIG. 1 . Theillustrative system 1600 includes aresource manager server 1606 communicatively coupled tomultiple compute sleds 1602 and amemory sled 1608 via anetwork switch 1604. Theresource manager server 1606 is configured to manage resources of thesystem 1600 to perform various workload operations. Theresource manager server 1606 is additionally configured to manage virtual machines (VMs) to execute a workload (e.g., an application) using the allocated resources. In some embodiments, one or more containers may be used in conjunction with or independent of a virtual machine (VM) instance. - In use, the
resource manager server 1606 receives an indication or otherwise identifies that a VM instance (e.g., the virtual machine 1616) presently being executed on one compute sled 1602 (e.g., compute sled (1) 1602 a) is to be migrated to another compute sled 1602 (e.g., compute sled (2) 1602 b). Accordingly, as will be described in further detail below, theresource manager server 1606 manages the migration. However, unlike present technologies in which theVM instance 1616 and all associated data would be required to be migrated from theinitial compute sled 1602 a to theother compute sled 1602 b, a previously allocated region of memory in a memory pool (e.g., the memory 1612 of the memory pool 1614) which was associated with (i.e., mapped to) theinitial compute sled 1602 a is re-mapped to be associated with theother compute sled 1602 b. As such, the data stored in thememory pool 1614 does not need to be transferred across the network fabric at any point in the migration of the VM, thereby eliminating the bandwidth consumption associated with the network traffic which would have otherwise been required to copy the data across the network fabric. - The
resource manager server 1606 may be embodied as any type of computing device capable of monitoring and managing resources of the compute sleds 1602, as well as performing the other functions described herein. For example, theresource manager server 1606 may be embodied as a computer, a distributed computing system, one or more sleds, a server (e.g., stand-alone, rack-mounted, blade, etc.), a multiprocessor system, a network appliance (e.g., physical or virtual), a desktop computer, a workstation, a laptop computer, a notebook computer, a processor-based system, or a network appliance. As shown inFIG. 17 , the illustrativeresource manager server 1606 includes acompute engine 1702, an input/output (I/O)subsystem 1708, one or moredata storage devices 1710,communication circuitry 1712, and one or moreperipheral devices 1716. It should be appreciated that theresource manager server 1606 may include other or additional components, such as those commonly found in a typical computing device (e.g., various input/output devices and/or other components), in other embodiments. Additionally, in some embodiments, one or more of the illustrative components may be incorporated in, or otherwise form a portion of, another component. - The
compute engine 1702 may be embodied as any type of device or collection of devices capable of performing the various compute functions as described herein. In some embodiments, thecompute engine 1702 may be embodied as a single device such as an integrated circuit, an embedded system, a field-programmable-array (FPGA), a system-on-a-chip (SOC), an application specific integrated circuit (ASIC), reconfigurable hardware or hardware circuitry, or other specialized hardware to facilitate performance of the functions described herein. Additionally, in some embodiments, thecompute engine 1702 may include, or may be embodied as, a processor 1704 (i.e., a central processing unit (CPU)) andmemory 1706. - The
processor 1704 may be embodied as any type of processor capable of performing the functions described herein. For example, theprocessor 1704 may be embodied as a single or multi-core processor(s), digital signal processor, microcontroller, or other processor or processing/controlling circuit. In some embodiments, theprocessor 1704 may be embodied as, include, or otherwise be coupled to a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), reconfigurable hardware or hardware circuitry, or other specialized hardware to facilitate performance of the functions described herein. - The
memory 1706 may be embodied as any type of volatile (e.g., dynamic random access memory (DRAM), etc.) or non-volatile memory or data storage capable of performing the functions described herein. It should be appreciated that thememory 1706 may include main memory (i.e., a primary memory) and/or cache memory (i.e., memory that can be accessed more quickly than the main memory). Volatile memory may be a storage medium that requires power to maintain the state of data stored by the medium. Non-limiting examples of volatile memory may include various types of random access memory (RAM), such as dynamic random access memory (DRAM) or static random access memory (SRAM). - One particular type of DRAM that may be used in a memory module is synchronous dynamic random access memory (SDRAM). In particular embodiments, DRAM of a memory component may comply with a standard promulgated by JEDEC, such as JESD79F for DDR SDRAM, JESD79-2F for DDR2 SDRAM, JESD79-3F for DDR3 SDRAM, JESD79-4A for DDR4 SDRAM, JESD209 for Low Power DDR (LPDDR), JESD209-2 for LPDDR2, JESD209-3 for LPDDR3, and JESD209-4 for LPDDR4 (these standards are available at www.jedec.org). Such standards (and similar standards) may be referred to as DDR-based standards and communication interfaces of the storage devices that implement such standards may be referred to as DDR-based interfaces.
- In one embodiment, the memory device is a block addressable memory device, such as those based on NAND or NOR technologies. A memory device may also include future generation nonvolatile devices, such as a three dimensional crosspoint memory device (e.g., Intel 3D XPoint™ memory), or other byte addressable write-in-place nonvolatile memory devices. In one embodiment, the memory device may be or may include memory devices that use chalcogenide glass, multi-threshold level NAND flash memory, NOR flash memory, single or multi-level Phase Change Memory (PCM), a resistive memory, nanowire memory, ferroelectric transistor random access memory (FeTRAM), anti-ferroelectric memory, magnetoresistive random access memory (MRAM) memory that incorporates memristor technology, resistive memory including the metal oxide base, the oxygen vacancy base and the conductive bridge Random Access Memory (CB-RAM), or spin transfer torque (STT)-MRAM, a spintronic magnetic junction memory based device, a magnetic tunneling junction (MTJ) based device, a DW (Domain Wall) and SOT (Spin Orbit Transfer) based device, a thyristor based memory device, or a combination of any of the above, or other memory. The memory device may refer to the die itself and/or to a packaged memory product.
- In some embodiments, 3D crosspoint memory (e.g., Intel 3D XPoint™ memory) may comprise a transistor-less stackable cross point architecture in which memory cells sit at the intersection of word lines and bit lines and are individually addressable and in which bit storage is based on a change in bulk resistance. In some embodiments, all or a portion of the
memory 1706 may be integrated into theprocessor 1704. In operation, thememory 1706 may store various software and data used during operation such as job request data, kernel map data, telemetry data, applications, programs, libraries, and drivers. - The
compute engine 1702 is communicatively coupled to other components of theresource manager server 1606 via the I/O subsystem 1708, which may be embodied as circuitry and/or components to facilitate input/output operations with theprocessor 1704, thememory 1706, and other components of theresource manager server 1606. For example, the I/O subsystem 1708 may be embodied as, or otherwise include, memory controller hubs, input/output control hubs, integrated sensor hubs, firmware devices, communication links (e.g., point-to-point links, bus links, wires, cables, light guides, printed circuit board traces, etc.), and/or other components and subsystems to facilitate the input/output operations. In some embodiments, the I/O subsystem 1708 may form a portion of a system-on-a-chip (SoC) and be incorporated, along with one or more of theprocessor 1704, thememory 1706, and other components of theresource manager server 1606, on a single integrated circuit chip. - The one or more
data storage devices 1710 may be embodied as any type of storage device(s) configured for short-term or long-term storage of data, such as, for example, memory devices and circuits, memory cards, hard disk drives, solid-state drives, or other data storage devices. Eachdata storage device 1710 may include a system partition that stores data and firmware code for thedata storage device 1710. Eachdata storage device 1710 may also include an operating system partition that stores data files and executables for an operating system. - The
communication circuitry 1712 may be embodied as any communication circuit, device, or collection thereof, capable of enabling communications between theresource manager server 1606 and other compute devices (e.g., the compute sleds 1602 ofFIG. 16 ) over a network. Accordingly, thecommunication circuitry 1712 may be configured to use any one or more communication technology (e.g., wired or wireless communications) and associated protocols (e.g., Ethernet, Bluetooth®, Wi-Fi®, WiMAX, etc.) to effect such communication. - The
illustrative communication circuitry 1712 includes a network interface controller (NIC) 1714, which may also be referred to as a host fabric interface (HFI). TheNIC 1714 may be embodied as one or more add-in-boards, daughtercards, network interface cards, controller chips, chipsets, or other devices that may be used by theresource manager server 1606 to connect with another compute device (e.g., one of the compute sleds 1602 ofFIG. 16 ). In some embodiments, theNIC 1714 may be embodied as part of a system-on-a-chip (SoC) that includes one or more processors, or included on a multichip package that also contains one or more processors. In some embodiments, theNIC 1714 may include a local processor (not shown) and/or a local memory (not shown) that are both local to theNIC 1714. In such embodiments, the local processor of theNIC 1714 may be capable of performing one or more of the functions of theprocessor 1704 described herein. Additionally or alternatively, in such embodiments, the local memory of theNIC 1714 may be integrated into one or more components of theresource manager server 1606 at the board level, socket level, chip level, and/or other levels. - The one or more
peripheral devices 1716 may include any type of device that is usable to input information into theresource manager server 1606 and/or receive information from theresource manager server 1606. Theperipheral devices 1716 may be embodied as any auxiliary device usable to input information into theresource manager server 1606, such as a keyboard, a mouse, a microphone, a barcode reader, an image scanner, etc., or output information from theresource manager server 1606, such as a display, a speaker, graphics circuitry, a printer, a projector, etc. It should be appreciated that, in some embodiments, one or more of theperipheral devices 1716 may function as both an input device and an output device (e.g., a touchscreen display, a digitizer on top of a display screen, etc.). It should be further appreciated that the types ofperipheral devices 1716 connected to theresource manager server 1606 may depend on, for example, the type and/or intended use of theresource manager server 1606. Additionally or alternatively, in some embodiments, theperipheral devices 1716 may include one or more ports, such as a USB port, for example, for connecting external peripheral devices to theresource manager server 1606. - Referring back to
FIG. 16 , thenetwork switch 1604 may be embodied as any type of networking device capable of performing the functions described herein, including switching network packets between the compute sleds 1602, theresource manager server 1606, and thememory sled 1608, as well as any other computing devices. For example, thenetwork switch 1604 may be embodied as a top-of-rack switch, a middle-of-rack switch, or other Ethernet switch. Thenetwork switch 1604, as described previously, is communicatively coupled to multiple sleds including the compute sleds 1602 and amemory sled 1608. Accordingly, thenetwork switch 1604 is configured to facilitate communication between theresource manager server 1606 and the compute sleds 1602, and between theresource manager server 1606 and thememory sled 1608, as well as between the compute sleds 1602 and thememory sled 1608. While thenetwork switch 1604 is illustratively shown as providing the communication link between the compute sleds 1602 and thememory sled 1608, it should be appreciated that, in other embodiments, the compute sleds 1602 and thememory sled 1608 may be connected via a set of dedicated links. In such embodiments, each of the compute sleds 1602 may be communicatively coupled to thememory sled 1608 via a dedicated link. - The compute sleds 1602 may be embodied as any type of compute device capable of performing the functions described herein, including instantiating/stopping/starting a VM instance and executing a workload (e.g., within the VM instance). As shown in
FIG. 18 , an illustrative one of the compute sleds 1602, has similar components to that of theresource manager server 1606, including acompute engine 1802 with aprocessor 1804 and amemory 1806, an I/O subsystem 1808,communication circuitry 1812 with aNIC 1814, and, in some embodiments, one or moredata storage devices 1810 and/or one or moreperipheral devices 1816. Accordingly, the similar or like components are not described herein to preserve clarity of the description. In some embodiments, the compute sleds 1602 may include other or additional components, such as those commonly found in a computing device. Additionally, in some embodiments, one or more of the illustrative components may be incorporated in, or otherwise form a portion of, another component. - Referring again to
FIG. 16 , thememory sled 1608 may be embodied as any type of storage device capable of performing the functions described herein, such as managing amemory pool 1614 of memory 1612 (e.g., physical storage resources 205-1). To do so, theillustrative memory sled 1608 includes amemory pool controller 1610, which is configured to manage data into and out of thememory pool 1614 such that the data can be stored and retrieved by the compute sleds 1602. It should be appreciated that thememory pool controller 1610 may be embodied as virtual and/or physical hardware, firmware, software, or a combination thereof. It should be further appreciated that while only asingle memory sled 1608 is shown, other embodiments may include more than onememory sled 1608. - The memory 1612 of the
memory pool 1614 may be embodied as any type of volatile (e.g., dynamic random access memory (DRAM), etc.) or non-volatile memory or data storage capable of performing the functions described herein. Volatile memory may be a storage medium that requires power to maintain the state of data stored by the medium. Non-limiting examples of volatile memory may include various types of random access memory (RAM), such as dynamic random access memory (DRAM) or static random access memory (SRAM). - One particular type of DRAM that may be used in a memory module is synchronous dynamic random access memory (SDRAM). In particular embodiments, DRAM of a memory component may comply with a standard promulgated by JEDEC, such as JESD79F for DDR SDRAM, JESD79-2F for DDR2 SDRAM, JESD79-3F for DDR3 SDRAM, JESD79-4A for DDR4 SDRAM, JESD209 for Low Power DDR (LPDDR), JESD209-2 for LPDDR2, JESD209-3 for LPDDR3, and JESD209-4 for LPDDR4 (these standards are available at www.jedec.org). Such standards (and similar standards) may be referred to as DDR-based standards and communication interfaces of the storage devices that implement such standards may be referred to as DDR-based interfaces.
- In one embodiment, the memory 1612 may be embodied as a block addressable memory device, such as those based on NAND or NOR technologies. A memory device may also include future generation nonvolatile devices, such as a three dimensional (3D) crosspoint memory device (e.g., Intel 3D XPoint™ memory), or other byte addressable write-in-place nonvolatile memory devices. In such embodiments, the 3D crosspoint memory (e.g., Intel 3D XPoint™ memory) may comprise a transistor-less stackable cross point architecture in which memory cells sit at the intersection of word lines and bit lines and are individually addressable and in which bit storage is based on a change in bulk resistance.
- In another embodiment, the memory 1612 may be or may include memory devices that use chalcogenide glass, multi-threshold level NAND flash memory, NOR flash memory, single or multi-level Phase Change Memory (PCM), a resistive memory, nanowire memory, ferroelectric transistor random access memory (FeTRAM), anti-ferroelectric memory, magnetoresistive random access memory (MRAM) memory that incorporates memristor technology, resistive memory including the metal oxide base, the oxygen vacancy base and the conductive bridge Random Access Memory (CB-RAM), or spin transfer torque (STT)-MRAM, a spintronic magnetic junction memory based device, a magnetic tunneling junction (MTJ) based device, a DW (Domain Wall) and SOT (Spin Orbit Transfer) based device, a thyristor based memory device, or a combination of any of the above, or other memory. The memory device may refer to the die itself and/or to a packaged memory product.
- The
illustrative compute sleds 1602 include a first compute sled, designated as compute sled (1) 1602 a, a second compute sled, designated as compute sled (2) 1602 b, and a third compute sled, designated as compute sled (N) 1602 c (e.g., in which the compute sled (N) 1602 c represents the “Nth”compute sled 1602, wherein “N” is a positive integer). It should be appreciated that, in some embodiments, one or more of the compute sleds 1602 may be grouped into a managed node, such as by theresource manager server 1606, to collectively perform a workload, such as an application. A managed node may be embodied as an assembly of resources, such as compute resources, memory resources, storage resource, or other resources, from the same or different sleds or racks. - Further, a managed node may be established, defined, or “spun up” by the
resource manager server 1606 at the time a workload is to be assigned to the managed node or at any other time, and may exist regardless of whether any workloads are presently assigned to the managed node. Theresource manager server 1606 may, in some embodiments, perform one or more orchestration operations in support of a cloud operating environment, such as OpenStack, and managed nodes established by theresource manager server 1606 may execute one or more applications or processes (i.e., workloads), such as in the VMs or containers, on behalf of a user of a client device (not shown) communicatively coupled to the resource manager server 1606 (e.g., via a network). - Referring now to
FIG. 19 , theresource manager server 1606 may establish anenvironment 1900 during operation. Theillustrative environment 1900 includes anetwork connection manager 1910, amemory pool communicator 1920, aresource allocator 1930, and aVM instance manager 1940. Each of the components of theenvironment 1900 may be embodied as hardware, firmware, software, or a combination thereof. As such, in some embodiments, one or more of the components of theenvironment 1900 may be embodied as circuitry or a collection of electrical devices (e.g., networkconnection management circuitry 1910, memorypool communication circuitry 1920,resource allocation circuitry 1930, VMinstance management circuitry 1940, etc.). It should be appreciated that, in such embodiments, one or more of the networkconnection management circuitry 1910, the memorypool communication circuitry 1920, theresource allocation circuitry 1930, and the VMinstance management circuitry 1940 may form a portion of one or more of thecompute engine 1702, the one or moredata storage devices 1710, thecommunication circuitry 1712, and/or any other components of theresource manager server 1606. - In the illustrative embodiment, the
environment 1900 additionally includesresource data 1902 andvirtual machine data 1904, each of which may be embodied as any data established by theresource manager server 1606. Theresource data 1902 may include any data usable to identify and/or allocate resources of the compute sleds 1602 and/or thememory sled 1608. Thevirtual machine data 1904 may include any data usable to identify VM instances (e.g., theVM instance 1616 ofFIG. 16 ) and the respective compute sleds 1602 on which the VM instances are presently being executed. Thevirtual machine data 1904 may additionally include VM resource requirement data usable to identify what resources are required for each VM instance. - The
network connection manager 1910, which may be embodied as hardware, firmware, software, virtualized hardware, emulated architecture, and/or a combination thereof as discussed above, is configured to facilitate inbound and outbound network communications (e.g., network traffic, network packets, network flows, etc.) to and from theresource manager server 1606, respectively. To do so, thenetwork connection manager 1910 is configured to receive and process data packets from one system or computing device (e.g., one of the compute sleds 1602) and to prepare and send data packets to another computing device or system (e.g., one of the compute sleds 1602). Accordingly, in some embodiments, at least a portion of the functionality of thenetwork connection manager 1910 may be performed by thecommunication circuitry 1712, or more particularly by theNIC 1714. - The
memory pool communicator 1920, which may be embodied as hardware, firmware, software, virtualized hardware, emulated architecture, and/or a combination thereof as discussed above, is configured to facilitate transmissions between theresource manager server 1606 and a memory pool controller of a memory pool (e.g., thememory pool controller 1610 of thememory pool 1614 ofFIG. 16 ). For example, thememory pool communicator 1920 is configured to generate and transmit memory allocation and memory map requests to thememory pool controller 1610 which are usable to allocate regions of memory (i.e., in response to a received memory allocation request) and map allocated regions of memory to a particular compute sled 1602 (i.e., in response to a received memory map request). - The
resource allocator 1930, which may be embodied as hardware, firmware, software, virtualized hardware, emulated architecture, and/or a combination thereof as discussed above, is configured to manage the available and allocated resources of the compute sleds 1602. To do so, theresource allocator 1930 may be configured to identify data associated with the resources, such as a compute capacity/availability, a memory bandwidth capacity/availability, a data storage capacity/availability, and/or a level of reliability, resiliency, and/or availability of the resources. In some embodiments, theresource allocator 1930 may be configured to store data related to the presently and/or historically available and/or allocated resources in theresource data 1902. - The
VM instance manager 1940, which may be embodied as hardware, firmware, software, virtualized hardware, emulated architecture, and/or a combination thereof as discussed above, is configured to manage the creation, migration, and deletion of VM instances on the compute sleds 1602. To do so, the illustrativeVM instance manager 1940 includes aresource identifier 1942 and amigration manager 1944. Theresource identifier 1942 is configured to identify which resources to allocate for a particular purpose (e.g., a workload). Such resources may be allocated by type, amount, performance, intended use, etc., and may include network communication resources, storage resources, compute resources, etc. - The
migration manager 1944 is configured to detect whether a migration trigger has been detected. To do so, for example, themigration manager 1944 may be configured to collect or otherwise analyze collected telemetry data to determine whether certain conditions exist such that a migration of a VM from onecompute sled 1602 to anothercompute sled 1602, or more particularly from a CPU on a compute sled 1602 (e.g., theprocessor 1804 of theillustrative compute sled 1602 ofFIG. 18 ) to a different CPU on anothercompute sled 1602, is required. - Additionally, the
migration manager 1944 is configured to manage the migration of a VM instance in response to having detected a migration triggering event. To do so, themigration manager 1944 may be configured to identify thecompute sled 1602 on which the VM instance to be migrated is presently being executed and transmit an indication to the identifiedcompute sled 1602 that indicates which VM instance is to be migrated. Accordingly, upon receipt, thecompute sled 1602 can stop the VM instance and initiate a data flush to a mapped region of memory in a memory pool (e.g., the memory 1612 in thememory pool 1614 ofFIG. 16 ). Themigration manager 1944 is further configured to migrate the workload/VM instance to thenew compute sled 1602 and initiate the re-mapping of the region of memory to thenew compute sled 1602 and the startup of the VM instance on thenew compute sled 1602. To initiate the re-mapping of the region of memory to thenew compute sled 1602, themigration manager 1944 is configured to provide identifying information of the old and new compute sleds 1602 to the memory pool controller 1610 (e.g., via the memory pool communicator 1920) which is usable by thememory pool controller 1610 to change the mapping of the data associated with the migrated VM instance from theold compute sled 1602 to thenew compute sled 1602. While the illustrative embodiment described herein is referring to a VM instance, it should be appreciated that the migration operations described herein may be performed on another object, such as a container, in other embodiments. - Referring now to
FIG. 20 , in use, a resource manager server (e.g.,resource manager server 1606 ofFIG. 16 ) may execute amethod 2000 for creating a VM instance (e.g., theVM instance 1616 ofFIG. 16 ) on a compute sled (e.g., one of the compute sleds 1602), or more particularly on a CPU of thecompute sled 1602. Themethod 2000 begins inblock 2002, in which theresource manager server 1606 determines whether to create aVM instance 1616. If so, themethod 2000 advances to block 2004, in which theresource manager server 1606 determines which resources (e.g., compute resources, storage resources, network resources, etc.) are required by a workload to be processed by or otherwise run on theVM instance 1616. - In block 2006, the
resource manager server 1606 determines a compute sled 1602 (e.g., one of the compute sled (1) 1602 a, the compute sled (2) 1602 b, the compute sled (N) 1602 c ofFIG. 16 ) on which to launch theVM instance 1616. To do so, inblock 2008, theresource manager server 1606 first identifies the available resources of eachavailable compute sled 1602. Additionally, in block 2010, theresource manager server 1606 determines the compute sled to launch theVM instance 1616 based on the determined resources required by the workload and the identified available resources of eachavailable compute sled 1602. - In
block 2012, theresource manager server 1606 allocates resources of the determined compute sled for use by the VM instance. In block 2014, theresource manager server 1606 allocates a region of memory in a memory pool (e.g., the memory 1612 in thememory pool 1614 ofFIG. 16 ) to be associated with thecompute sled 1602. It should be appreciated that the regions of memory may be private (i.e., dedicated to the compute sled 1602) or shared among more than onecompute sled 1602. To do so, inblock 2016, theresource manager server 1606 transmits a memory allocation request to a memory pool controller (e.g., the memory pool controller 1610) of thememory pool 1614. Additionally, inblock 2018, theresource manager server 1606 includes information usable to map the compute sled to the allocated memory region (e.g., identifying information of thecompute sled 1602 and/or the CPU of thecompute sled 1602 on which the VM instance is to be run). In block 2020, theresource manager server 1606 creates theVM instance 1616. - Referring now to
FIG. 21 , in use, a resource manager server 1606 (e.g.,resource manager server 1606 ofFIG. 16 ) may execute amethod 2100 for migrating an existing VM instance (e.g., theVM instance 1616 ofFIG. 16 ) from one compute sled 1602 (e.g., the compute sled (1) 1602 a) to another compute sled 1602 (e.g., the compute sled (2) 1602 b), or more particularly from one CPU (e.g., theprocessor 1804 of theillustrative compute sled 1602 ofFIG. 18 ) of acompute sled 1602 to a CPU of anothercompute sled 1602. Themethod 2100 begins inblock 2102, in which theresource manager server 1606 determines whether to migrate aVM instance 1616. If so, themethod 2100 advances to block 2104, in which theresource manager server 1606 retrieves the resources (e.g., compute resources, storage resources, network resources, etc.) which have previously been determined as being required by the workload being processed by or otherwise run on theVM instance 1616. - In
block 2106, theresource manager server 1606 determines anothercompute sled 1602 on which to migrate theVM instance 1616 to. To do so, inblock 2108, theresource manager server 1606 first identifies the available resources of each of the other available compute sleds 1602. Additionally, in block 2110, theresource manager server 1606 determines the compute sled to migrate theVM instance 1616 to based on the retrieved resources required by the workload and the identified available resources of each of the other available compute sleds 1602. - In
block 2112, theresource manager server 1606 allocates resources of the determined other compute sled for use by theVM instance 1616 upon being migrated. In block 2114, theresource manager server 1606 migrates theVM instance 1616 to the otherdetermined compute sled 1602. In other words, the data (e.g., software/hardware thread states) associated with the workload being processed by theVM instance 1616 and/or data corresponding to theVM instance 1616 itself are migrated to theother compute sled 1602. Inblock 2116, theresource manager server 1606 re-maps the region of memory in the memory pool from the previously associated compute sled 1602 (i.e., from which theVM instance 1616 is being migrated from) to the other compute sled 1602 (i.e., to which theVM instance 1616 is being migrated to). To do so, inblock 2118, theresource manager server 1606 transmits a memory re-map request to a memory pool controller (e.g., the memory pool controller 1610) of thememory pool 1614. Additionally, inblock 2120, theresource manager server 1606 includes information usable to re-map the allocated memory region from the previously associatedcompute sled 1602 to thecompute sled 1602 which theVM instance 1616 is being migrated to. Inblock 2122, theresource manager server 1606 starts-up theVM instance 1616 on theother compute sled 1602. - Illustrative examples of the technologies disclosed herein are provided below. An embodiment of the technologies may include any one or more, and any combination of, the examples described below.
- Example 1 includes a resource manager server for migrating virtual machines, the resource manager server comprising a compute engine to identify a compute sled of a plurality of compute sleds for a virtual machine (VM) instance, wherein each of the compute sleds is communicatively coupled to the resource manager server; allocate a first set of resources of the identified compute sled for the VM instance; associate a region of memory in a memory pool of a memory sled with the compute sled, wherein the memory sled is communicatively coupled to the resource manager server; create the VM instance on the compute sled; allocate, in response to determined determination that the VM instance is to be migrated, a second set of resources of another compute sled of the plurality of compute sleds for the VM instance; migrate the VM instance to the other compute sled; associate the region of memory in the memory pool with the other compute sled; and start-up the VM instance on the other compute sled.
- Example 2 includes the subject matter of Example 1, and wherein to allocate the first set of resources of the compute sled comprises to (i) determine a set of resources required by a workload to be processed by the VM instance and (ii) allocate the first set of resources of the compute sled as a function of the determined required set of resources.
- Example 3 includes the subject matter of any of Examples 1 and 2, and wherein to allocate the first set of resources of the compute sled further comprises to (i) identify available resources of each of the plurality of compute sleds and (ii) allocate the first set of resources of the compute sled as a function of the identified available resources.
- Example 4 includes the subject matter of any of Examples 1-3, and wherein to associate the region of memory in the memory pool of the memory sled with the compute sled comprises to transmit a memory allocation request to a memory pool controller of the memory pool that is usable to allocate the region of memory and map the allocated region of memory to the compute sled.
- Example 5 includes the subject matter of any of Examples 1-4, and wherein to migrate the VM instance to the other compute sled comprises to transmit one or more threads associated with the workload associated with the VM instance to the other compute sled.
- Example 6 includes the subject matter of any of Examples 1-5, and wherein to associate the region of memory in the memory pool of the memory sled with the other compute sled comprises to transmit a memory allocation request to a memory pool controller of the memory pool that is usable to map the allocated region of memory to the other compute sled.
- Example 7 includes the subject matter of any of Examples 1-6, and wherein to allocate the second set of resources of the compute sled comprises to (i) retrieve a set of resources required by a workload being processed by the VM instance and (ii) allocate the second set of resources of the compute sled as a function of the retrieved required set of resources.
- Example 8 includes the subject matter of any of Examples 1-7, and wherein to allocate the second set of resources of the other compute sled further comprises to (i) identify available resources of each of the plurality of compute sleds and (ii) allocate the second set of resources of the other compute sled as a function of the identified available resources.
- Example 9 includes a method for migrating virtual machines, the comprising identifying, by a compute engine of a resource manager server, a compute sled of a plurality of compute sleds for a virtual machine (VM) instance, wherein each of the compute sleds is communicatively coupled to the resource manager server; allocating, by the compute engine, a first set of resources of the identified compute sled for the VM instance; associating, by the compute engine, a region of memory in a memory pool of a memory sled with the compute sled, wherein the memory sled is communicatively coupled to the resource manager server; creating, by the compute engine, the VM instance on the compute sled; allocating, by the compute engine and in response to determined determination that the VM instance is to be migrated, a second set of resources of another compute sled of the plurality of compute sleds for the VM instance; migrating, by the compute engine, the VM instance to the other compute sled; associating, by the compute engine, the region of memory in the memory pool with the other compute sled; and starting-up, by the compute engine, the VM instance on the other compute sled.
- Example 10 includes the subject matter of Example 9, and wherein allocating the first set of resources of the compute sled comprises determining a set of resources required by a workload to be processed by the VM instance; and allocating the first set of resources of the compute sled as a function of the determined required set of resources.
- Example 11 includes the subject matter of any of Examples 9 and 10, and wherein allocating the first set of resources of the compute sled further comprises identifying available resources of each of the plurality of compute sleds; and allocating the first set of resources of the compute sled as a function of the identified available resources.
- Example 12 includes the subject matter of any of Examples 9-11, and wherein associating the region of memory in the memory pool of the memory sled with the compute sled comprises transmitting a memory allocation request to a memory pool controller of the memory pool that is usable to allocate the region of memory and map the allocated region of memory to the compute sled.
- Example 13 includes the subject matter of any of Examples 9-12, and wherein migrating the VM instance to the other compute sled comprises transmitting one or more threads associated with the workload associated with the VM instance to the other compute sled.
- Example 14 includes the subject matter of any of Examples 9-13, and wherein associating the region of memory in the memory pool of the memory sled with the other compute sled comprises transmitting a memory allocation request to a memory pool controller of the memory pool that is usable to map the allocated region of memory to the other compute sled.
- Example 15 includes the subject matter of any of Examples 9-14, and wherein allocating the second set of resources of the compute sled comprises retrieving a set of resources required by a workload being processed by the VM instance; and allocating the second set of resources of the compute sled as a function of the retrieved required set of resources.
- Example 16 includes the subject matter of any of Examples 9-15, and wherein allocating the second set of resources of the other compute sled further comprises identifying available resources of each of the plurality of compute sleds; and allocating the second set of resources of the other compute sled as a function of the identified available resources.
- Example 17 includes one or more machine-readable storage media comprising a plurality of instructions stored thereon that, in response to being executed, cause a resource manager server to perform the method of any of Examples 9-16.
- Example 18 includes a resource manager server for improving throughput in a network, the resource manager server comprising one or more processors; one or more memory devices having stored therein a plurality of instructions that, when executed by the one or more processors, cause the resource manager server to perform the method of any of Examples 9-16.
- Example 19 includes a resource manager server for migrating virtual machines, the resource manager server comprising virtual machine instance management circuitry to identify a compute sled of a plurality of compute sleds for a virtual machine (VM) instance, wherein each of the compute sleds is communicatively coupled to the resource manager server; allocate a first set of resources of the identified compute sled for the VM instance; associate a region of memory in a memory pool of a memory sled with the compute sled, wherein the memory sled is communicatively coupled to the resource manager server; create the VM instance on the compute sled; allocate, in response to determined determination that the VM instance is to be migrated, a second set of resources of another compute sled of the plurality of compute sleds for the VM instance; migrate the VM instance to the other compute sled; associate the region of memory in the memory pool with the other compute sled; and start-up the VM instance on the other compute sled.
- Example 20 includes the subject matter of Example 19, and wherein to allocate the first set of resources of the compute sled comprises to (i) determine a set of resources required by a workload to be processed by the VM instance and (ii) allocate the first set of resources of the compute sled as a function of the determined required set of resources.
- Example 21 includes the subject matter of any of Examples 19 and 20, and wherein to allocate the first set of resources of the compute sled further comprises to (i) identify available resources of each of the plurality of compute sleds and (ii) allocate the first set of resources of the compute sled as a function of the identified available resources.
- Example 22 includes the subject matter of any of Examples 19-21, and wherein to associate the region of memory in the memory pool of the memory sled with the compute sled comprises to transmit a memory allocation request to a memory pool controller of the memory pool that is usable to allocate the region of memory and map the allocated region of memory to the compute sled.
- Example 23 includes the subject matter of any of Examples 19-22, and wherein to migrate the VM instance to the other compute sled comprises to transmit one or more threads associated with the workload associated with the VM instance to the other compute sled.
- Example 24 includes the subject matter of any of Examples 19-23, and wherein to associate the region of memory in the memory pool of the memory sled with the other compute sled comprises to transmit a memory allocation request to a memory pool controller of the memory pool that is usable to map the allocated region of memory to the other compute sled.
- Example 25 includes the subject matter of any of Examples 19-24, and wherein to allocate the second set of resources of the compute sled comprises to (i) retrieve a set of resources required by a workload being processed by the VM instance and (ii) allocate the second set of resources of the compute sled as a function of the retrieved required set of resources.
- Example 26 includes the subject matter of any of Examples 19-25, and wherein to allocate the second set of resources of the other compute sled further comprises to (i) identify available resources of each of the plurality of compute sleds and (ii) allocate the second set of resources of the other compute sled as a function of the identified available resources.
- Example 27 includes a resource manager server for migrating virtual machines, the resource manager server comprising circuitry for identifying, by a compute engine of the resource manager server, a compute sled of a plurality of compute sleds for a virtual machine (VM) instance, wherein each of the compute sleds is communicatively coupled to the resource manager server; circuitry for allocating, by the compute engine, a first set of resources of the identified compute sled for the VM instance; means for associating, by the compute engine, a region of memory in a memory pool of a memory sled with the compute sled, wherein the memory sled is communicatively coupled to the resource manager server; circuitry for creating, by the compute engine, the VM instance on the compute sled; circuitry for allocating, by the compute engine and in response to determined determination that the VM instance is to be migrated, a second set of resources of another compute sled of the plurality of compute sleds for the VM instance; circuitry for migrating, by the compute engine, the VM instance to the other compute sled; means for associating, by the compute engine, the region of memory in the memory pool with the other compute sled; and circuitry for starting-up, by the compute engine, the VM instance on the other compute sled.
- Example 28 includes the subject matter of Example 27, and wherein the circuitry for allocating the first set of resources of the compute sled comprises means for determining a set of resources required by a workload to be processed by the VM instance; and circuitry for allocating the first set of resources of the compute sled as a function of the determined required set of resources.
- Example 29 includes the subject matter of any of Examples 27 and 28, and wherein the circuitry for allocating the first set of resources of the compute sled further comprises means for identifying available resources of each of the plurality of compute sleds; and circuitry for allocating the first set of resources of the compute sled as a function of the identified available resources.
- Example 30 includes the subject matter of any of Examples 27-29, and wherein the means for associating the region of memory in the memory pool of the memory sled with the compute sled comprises means for transmitting a memory allocation request to a memory pool controller of the memory pool that is usable to allocate the region of memory and map the allocated region of memory to the compute sled.
- Example 31 includes the subject matter of any of Examples 27-30, and wherein the circuitry for migrating the VM instance to the other compute sled comprises circuitry for transmitting one or more threads associated with the workload associated with the VM instance to the other compute sled.
- Example 32 includes the subject matter of any of Examples 27-31, and wherein the means for associating the region of memory in the memory pool of the memory sled with the other compute sled comprises means for transmitting a memory allocation request to a memory pool controller of the memory pool that is usable to map the allocated region of memory to the other compute sled.
- Example 33 includes the subject matter of any of Examples 27-32, and wherein the circuitry for allocating the second set of resources of the compute sled comprises circuitry for retrieving a set of resources required by a workload being processed by the VM instance; and circuitry for allocating the second set of resources of the compute sled as a function of the retrieved required set of resources.
- Example 34 includes the subject matter of any of Examples 27-33, and wherein the circuitry for allocating the second set of resources of the other compute sled further comprises means for identifying available resources of each of the plurality of compute sleds; and circuitry for allocating the second set of resources of the other compute sled as a function of the identified available resources.
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