CN107463519A - Storage device and the system for accessing storage device - Google Patents
Storage device and the system for accessing storage device Download PDFInfo
- Publication number
- CN107463519A CN107463519A CN201710529634.XA CN201710529634A CN107463519A CN 107463519 A CN107463519 A CN 107463519A CN 201710529634 A CN201710529634 A CN 201710529634A CN 107463519 A CN107463519 A CN 107463519A
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- Prior art keywords
- processor unit
- memory module
- pcie
- storage
- access request
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/14—Handling requests for interconnection or transfer
- G06F13/16—Handling requests for interconnection or transfer for access to memory bus
- G06F13/1605—Handling requests for interconnection or transfer for access to memory bus based on arbitration
- G06F13/1652—Handling requests for interconnection or transfer for access to memory bus based on arbitration in a multiprocessor architecture
- G06F13/1657—Access to multiple memories
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4204—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus
- G06F13/4221—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus being an input/output bus, e.g. ISA bus, EISA bus, PCI bus, SCSI bus
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0026—PCI express
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
The embodiment of the present invention provides a kind of storage device and the system for accessing storage device.The storage device includes：Storage control, Switching Module and memory module, storage control are used to be connected with processor unit, are additionally operable to connect by PCIe interface and the up PCIe interface of Switching Module；Switching Module includes some descending PCIe interfaces, for being connected with least one memory module；Storage control is used for the access request that reception processing device unit is sent, and access request is converted to the access request of PCIe format, and sent to Switching Module by the PCIe interface；The access request that Switching Module is used for the PCIe format to being received parses, and obtains the reference address of the processor unit memory module to be accessed, and according to the reference address, received access request is sent to corresponding memory module.By increasing Switching Module, the quantity for the memory module that processor unit can access is extended.
Description
Technical field
The present embodiments relate to technical field of memory, more particularly to a kind of storage device and for accessing storage device
System.
Background technology
In current network application scene, peripheral component interconnection (Peripheral Component
Interconnect express, PCIe) it is a kind of high speed serialization computer expansion bus standard, it is in 2001 by Intel
It is proposed.PCIe belongs to the point-to-point binary channels high bandwidth transmission of high speed serialization, and the equipment distribution connected exclusively enjoys bandwidth chahnel, no
Shared bus bandwidth, mainly supports the functions such as active power management, error reporting and end-to-end reliability transmission.
Flash non-volatile storage (Non-Volatile Memory Express, NVMe) standard is one for using
The enterprise of PCIe solid storage devices and the storage controller interface standard of normal client end system exploitation, using under NVMe frameworks
Memory can improving performance, can reduce and be delayed over 50%, and greatly reduce power consumption.
Existing NVMe storage architectures, NVMe storage devices are usually directly connected to the PCIe interface of processor unit
On, according to the access request of processor unit transmission, directly NVMe storage devices are conducted interviews.
During the present invention is realized, inventor has found that above-mentioned NVMe storage architectures at least have following defect：Due to
Limited by PCIe interface quantity so that the limited amount for the NVMe storage devices being connected on processor unit, can not extend.
The content of the invention
The embodiment of the present invention provides a kind of storage device and the system for accessing storage device, with lifting and processor list
The extended capability of the storage device of member connection.
In a first aspect, the embodiment of the present invention provides a kind of storage device, including：Storage control, Switching Module and storage
Module, the storage control are used to be connected with processor unit, are additionally operable to interconnect (PCIe) interface by peripheral component
It is connected with the up PCIe interface of the Switching Module；The Switching Module includes some descending PCIe interfaces, for at least
One memory module connection；
The storage control, the access request sent for receiving the processor unit, the access request is turned
The access request of PCIe format is changed to, and is sent by the PCIe interface to the Switching Module, the visit of the PCIe format
Ask the reference address that the processor unit memory module to be accessed is comprised at least in request；
The Switching Module, the access request for the PCIe format to being received parse, and obtain the place
The reference address of the device unit memory module to be accessed is managed, and according to the reference address for parsing and obtaining, to the processing
The memory module that device unit to be accessed sends the access request of the PCIe format received.
In such scheme, the processor unit institute can be comprised at least in the access request that the processor unit is sent
The mark for the memory module to be accessed；
Accordingly, the storage control can be additionally used according to the mark, determine that the processor unit to be accessed
Memory module reference address, and the memory module that the processor unit to be accessed reference address carry described
In the access request of PCIe format.
In such scheme, the memory module may include：Support solid state hard disc (the Solid State of NVMe standards
Disk, SSD).
In above-mentioned each scheme, at least one memory module can be distributed in around the Switching Module.
Second aspect, the embodiment of the present invention also provide a kind of system for accessing storage device, including：
The storage device that processor unit and any embodiment of the present invention provide, the processor unit and the storage
Storage control connection in equipment.
In such scheme, the storage control can be deployed in the equipment side belonging to the processor unit.
Further, the equipment belonging to the processor unit may include：Storage server, cluster server, the whole world are wide
Domain network server or database server.
Storage device provided in an embodiment of the present invention and the system for accessing storage device, by storage control and
Increase Switching Module between memory module, and a up PCIe interface can be set in Switching Module, the storage is controlled
Device processed and the Switching Module are attached, while some descending PCIe interfaces are set in the Switching Module so that multiple
Memory module can be connected on processor unit simultaneously by Switching Module and storage control, extends processor unit institute
The quantity for the memory module that can be accessed.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation for storage device that the embodiment of the present invention one provides；
Fig. 2 is the plane signal of the distribution mode of a kind of Switching Module provided in an embodiment of the present invention and multiple memory modules
Figure；
Fig. 3 is the schematic perspective view of the distribution mode of the Switching Module and multiple memory modules shown in Fig. 2；
Fig. 4 is a kind of structural representation for being used to access the system of storage device that the embodiment of the present invention two provides；
Fig. 5 is a kind of structural representation for being used to access the system example of storage device provided in an embodiment of the present invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
Embodiment one
A kind of referring to Fig. 1, structural representation of the storage device provided for the embodiment of the present invention one.The storage device bag
Include：Storage control 110, Switching Module 120 and memory module 130.
The storage control 110 is used to be connected with processor unit, is additionally operable to interconnect by peripheral component
(PCIe) interface is connected with the up PCIe interface of the Switching Module 120；The Switching Module 120 includes some descending PCIe
Interface, for being connected with least one memory module 130.
For storage device is directly connected to the mode of the PCIe interface of processor unit, due to by PCIe interface
The limitation of quantity so that the limited amount for the storage device being connected on processor unit, can not extend.Exemplary, it is assumed that
The quantity of PCIe interface is 1, then processor unit can only at most access 1 storage device.
The present embodiment between the storage control and memory module by increasing Switching Module, on the Switching Module
One up PCIe interface can be set, while some descending PCIe interfaces are set so that multiple memory modules pass through interchange mode
Block can be connected on processor unit simultaneously, so that processor unit is able to access that more than storage control and processor
The memory module of PCIe interface quantity between unit, extend the quantity for the memory module that processor unit can access.
Exemplary, the PCIe interface quantity still between storage control and processor unit illustrates as 1, false
If the quantity of the descending PCIe interface set on Switching Module be 6, then allow 6 memory modules by Switching Module simultaneously
It is connected on processor unit, so that processor unit is able to access that 6 memory modules, extends processor unit institute energy
The quantity of the memory module of access.
The function of each module included below to the storage device is introduced.
The storage control 110 is used to receive the access request that the processor unit is sent, by the access request
The access request of PCIe format is converted to, and is sent by the PCIe interface to the Switching Module 120, the PCIe format
Access request in comprise at least the processor unit memory module to be accessed reference address.
As a kind of specific embodiment, the place can be comprised at least in the access request that the processor unit is sent
Manage the mark of the device unit memory module to be accessed；The mark is used for unique identification memory module.
Accordingly, the storage control 110 is additionally operable to according to the mark, determines that the processor unit to be accessed
Memory module reference address, and the memory module that the processor unit to be accessed reference address carry described
In the access request of PCIe format.
Specifically, the storage control 110 can be specifically used for according to the mark, and mark address mapping relation
Table, the reference address of the processor unit memory module to be accessed is determined, wherein, the mark address mapping relation table
For preserving the mark of at least one memory module and the mapping relations of reference address.
Wherein, the Switching Module 120 parses for the access request of the PCIe format to being received, and obtains
The reference address of the processor unit memory module to be accessed, and according to the reference address for parsing and obtaining, to institute
State the access request that the processor unit memory module to be accessed sends the PCIe format received.So, according to institute
State the access request of PCIe format, you can realize the access of the processor unit memory module to be accessed it, such as read
The data in the memory module to be accessed are taken, or are write data into the memory module to be accessed.
It should be noted that when the processor unit is to the transmission access request of storage control 110, because storage controls
Device 110 correspond at least one memory module 130 by 120 pieces of the interchange mode, and the processor unit is to the control mould
It is necessary to include the mark of the processor unit memory module to be accessed in the access request that block is sent, so, storage
Device module 110 can determine the reference address of the processor unit memory module to be accessed according to the mark, so as to
Switching Module 120 is determined the processor unit memory module to be accessed, realize the processor unit to be visited
The access for the memory module asked.
The technical scheme of the present embodiment, by increasing Switching Module between storage control and memory module, and hand over
A up PCIe interface can be set in mold changing block, the store controller and the Switching Module are attached, simultaneously
Some descending PCIe interfaces are set in the Switching Module so that multiple memory modules pass through Switching Module and storage control
It can be connected to simultaneously on processor unit, extend the quantity for the memory module that processor unit can access.
In such scheme, the memory module may include：Support the solid state hard disc (SSD) of NVMe standards.
So setting is advantageous in that：On the one hand, using the memory under NVMe frameworks can improving performance, delay can be reduced
More than 50%, and greatly reduce power consumption；On the other hand, the solid state hard disc can be used as caching to use, with conventional hard
Mixed insertion forms classification storage, and the data that will seldom access move on to conventional hard, and the memory space of solid state hard disc, leaves more frequency for
The data of numerous access, so as to improve storage performance.
In above-mentioned each scheme, at least one memory module 130 can be distributed in around the Switching Module 120.
So setting is advantageous in that：Improve Switching Module and its at least one memory module for being supported it is integrated
Degree.
The distribution mode of Switching Module and multiple memory modules is introduced with reference to an example.
Please refer to Fig. 2 and Fig. 3, a kind of Switching Module respectively provided in an embodiment of the present invention and multiple memory modules
Distribution mode floor map and schematic perspective view.Wherein, multiple memory modules are to support that the solid-state of NVMe standards is hard
Disk (SSD), i.e. NVMe SSD in Fig. 2, is distributed around PCIe Switching Modules in fig. 2.All NVMe SSD and PCIe
Switching Module preferably inserts (see Fig. 3) for vertical direction, and NVMe SSD are erected and are inserted in around PCIe Switching Modules, are carried
The high supported NVMe SSD of Switching Module quantity so that multiple memory modules are that NVMe SSD pass through PCIe Switching Modules
It can be connected to simultaneously on processor unit with storage control, extend the number for the memory module that processor unit can access
Amount, meanwhile, the integrated level of multiple memory modules for improving PCIe Switching Modules and its being supported, in addition, NVMe SSD can be inserted
Pull out, NVMe SSD quantity according to actual storage needs, can be adjusted flexibly.
Embodiment two
A kind of referring to Fig. 4, structural representation for being used to access the system of storage device provided for the embodiment of the present invention two
Figure.The system includes：The storage device 420 that processor unit 410 and any embodiment of the present invention provide, the processor list
Member 410 is connected with the storage control in the storage device 420.
The annexation and function of structure and each part for storage device 420 see above-described embodiment,
The present embodiment repeats no more to this.
The system provided in an embodiment of the present invention for being used to access storage device possesses the storage device that above-described embodiment provides
Corresponding beneficial effect, is repeated no more.
In such scheme, the storage control can be deployed in the equipment side belonging to the processor unit 410.
So disposing is advantageous in that：Storage control is deployed in the equipment side belonging to processor unit, multiple storages
Module can need flexible deployment in the side away from the equipment belonging to the processor unit according to actual storage, at realization
While managing remote access of the device unit to multiple memory modules, the flexibility of multiple memory module deployment is improved.
Further, the equipment belonging to the processor unit 410 may include：Storage server, cluster server, the whole world
Wide area network server or database server.
So setting is advantageous in that：Improve storage server, cluster server, global wide area network server or
The quantity of the supported memory module of database server.
Referring to Fig. 5, the structure for a kind of system example for accessing storage device provided in an embodiment of the present invention is shown
It is intended to.
The system includes：Processor unit and storage device, the storage device include：Storage control, Switching Module
(being specially the PCIe Switching Modules in Fig. 5) and memory module (being specially multiple NVMe SSD in Fig. 5).
The storage control is connected with processor unit, also passes through PCIe interface and the up PCIe interface of Switching Module
Connection；Switching Module includes some descending PCIe interfaces, for being connected with least one memory module.That is, each section
Point PCIe port is connected with the upstream Interface of PCIe Switching Modules, if then being expanded from the downlink port of PCIe Switching Modules
Dry PCIe port, and be connected with NVMe SSD.
The system may also include：Optical fiber network interface card, be connected with the processor unit, the optical fiber network interface card be used for by with
Too net optical fiber interface access network based on ethernet.
The system may also include：Microcontroller, for being carried out by ethernet management interface to the Ethernet accessed
Management.
The system may also include operating system, and on software, the driving of NVMe storage devices can be directly connected to behaviour
Make the block device layer of system, delay is accessed to reduce.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above method embodiment can pass through
Programmed instruction related hardware is completed, and foregoing program can be stored in a computer read/write memory medium, the program
Upon execution, the step of execution includes above method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or light
Disk etc. is various can be with the medium of store program codes.
Construction, feature and the action effect of the present invention, above institute is described in detail according to the embodiment shown in schema above
Only presently preferred embodiments of the present invention is stated, but the present invention is not to limit practical range shown in drawing, it is every according to structure of the invention
Want made change, or be revised as the equivalent embodiment of equivalent variations, when still without departing from specification and illustrating covered spirit,
All should be within the scope of the present invention.
Claims (7)
- A kind of 1. storage device, it is characterised in that including：Storage control, Switching Module and memory module, the storage control Device is used to be connected with processor unit, is additionally operable to by the up of peripheral component interconnection PCIe interface and the Switching Module PCIe interface connects；The Switching Module includes some descending PCIe interfaces, for being connected with least one memory module；The storage control, the access request sent for receiving the processor unit, the access request is converted to The access request of PCIe format, and sent by the PCIe interface to the Switching Module, the access of the PCIe format please The reference address of the processor unit memory module to be accessed is comprised at least in asking；The Switching Module, the access request for the PCIe format to being received parse, and obtain the processor The reference address of the unit memory module to be accessed, and according to the reference address for parsing and obtaining, to the processor list The member memory module to be accessed sends the access request of the PCIe format received.
- 2. storage device according to claim 1, it is characterised in that in the access request that the processor unit is sent extremely Include the mark of the processor unit memory module to be accessed less；Accordingly, the storage control is additionally operable to according to the mark, determine the processor unit storage to be accessed The reference address of module, and the reference address for the memory module that the processor unit to be accessed is carried in the PCIe lattice In the access request of formula.
- 3. storage device according to claim 1, it is characterised in that the memory module includes：Support quick non-volatile Property storage NVMe standards solid-state hard disk SSD.
- 4. according to any described storage devices of claim 1-3, it is characterised in that at least one memory module is distributed in Around the Switching Module.
- A kind of 5. system for accessing storage device, it is characterised in that including：Processor unit and the storage device as described in claim 1-4 is any, the processor unit are set with the storage Storage control connection in standby.
- 6. system according to claim 5, it is characterised in that the storage control is deployed in the processor unit institute The equipment side of category.
- 7. system according to claim 6, it is characterised in that the equipment belonging to the processor unit includes：Storage clothes Business device, cluster server, global wide area network server or database server.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710529634.XA CN107463519A (en) | 2017-07-02 | 2017-07-02 | Storage device and the system for accessing storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710529634.XA CN107463519A (en) | 2017-07-02 | 2017-07-02 | Storage device and the system for accessing storage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107463519A true CN107463519A (en) | 2017-12-12 |
Family
ID=60544157
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710529634.XA Withdrawn CN107463519A (en) | 2017-07-02 | 2017-07-02 | Storage device and the system for accessing storage device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115061957A (en) * | 2022-05-17 | 2022-09-16 | 苏州浪潮智能科技有限公司 | Storage device and access method |
| WO2023185639A1 (en) * | 2022-03-31 | 2023-10-05 | 苏州浪潮智能科技有限公司 | Data interaction system and method based on nvme hard disk |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104111907A (en) * | 2014-06-27 | 2014-10-22 | 华为技术有限公司 | Method for accessing NVMe storage device and NVMe storage device |
| US20160147442A1 (en) * | 2014-11-20 | 2016-05-26 | Avago Technologies Limited | Peripheral component interconnect express controllers configured with non-volatile memory express interfaces |
-
2017
- 2017-07-02 CN CN201710529634.XA patent/CN107463519A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104111907A (en) * | 2014-06-27 | 2014-10-22 | 华为技术有限公司 | Method for accessing NVMe storage device and NVMe storage device |
| US20160147442A1 (en) * | 2014-11-20 | 2016-05-26 | Avago Technologies Limited | Peripheral component interconnect express controllers configured with non-volatile memory express interfaces |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023185639A1 (en) * | 2022-03-31 | 2023-10-05 | 苏州浪潮智能科技有限公司 | Data interaction system and method based on nvme hard disk |
| CN115061957A (en) * | 2022-05-17 | 2022-09-16 | 苏州浪潮智能科技有限公司 | Storage device and access method |
| CN115061957B (en) * | 2022-05-17 | 2023-07-11 | 苏州浪潮智能科技有限公司 | Storage device access method |
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