WO2019100701A1 - 一种SAS Switch控制器扩展架构及设计方法 - Google Patents

一种SAS Switch控制器扩展架构及设计方法 Download PDF

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WO2019100701A1
WO2019100701A1 PCT/CN2018/091774 CN2018091774W WO2019100701A1 WO 2019100701 A1 WO2019100701 A1 WO 2019100701A1 CN 2018091774 W CN2018091774 W CN 2018091774W WO 2019100701 A1 WO2019100701 A1 WO 2019100701A1
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sas
controller
board
switch
network
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刘鹏
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郑州云海信息技术有限公司
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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
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/40—Bus structure
    • G06F13/4004—Coupling between buses
    • G06F13/4022—Coupling between buses using switching circuits, e.g. switching matrix, connection or expansion network
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
    • G06F3/0604—Improving or facilitating administration, e.g. storage management
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
    • G06F3/0608—Saving storage space on storage systems
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
    • G06F3/0655—Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices
    • G06F3/0658—Controller construction arrangements
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
    • G06F3/067—Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]

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  • the invention relates to a SAS Switch controller expansion architecture and design method, and belongs to the field of server storage resource expansion design.
  • the object of the present invention is to provide an SAS Switch controller extension architecture and design method, which realizes centralized management and integrated allocation of resources, and improves resource utilization.
  • a SAS Switch controller expansion architecture the controller includes a network switch board and a plurality of SAS switch boards, the uplink port of the controller is connected to the SAS card or the computing node, and the downlink port is connected to the storage resource pool or directly connected to the hard disk. .
  • the management link of the controller is interconnected with the node middle board in the RACK whole cabinet through the I2C bus, and the power supply and management signals are transmitted through the secondary power board.
  • the node midplane communicates with the SAS switch mainboard through I2C, and the RMC communicates with the node midplane through I2C to realize the monitoring and management of the entire system.
  • the external part of the controller is connected to the storage resource pool, the network switch board, the SAS switch main board, and the node middle board through the SAS line, thereby realizing resource allocation of the entire cabinet extension architecture.
  • the controller adopts a 1U4 structure design, including a network switch board and three SAS switch boards.
  • the network switch board is placed in the upper left area, and the three SAS switch boards are placed in the lower left, upper right, and lower right area, respectively.
  • the SAS switch mainboard uses a PM8056 chip, and each motherboard can provide 68 interfaces.
  • the network switch board includes three RJ45 100M network ports and one RJ45 Gigabit network port.
  • the three 100M network ports are respectively connected to three SAS switch mainboard network ports, and the Gigabit network port is connected to the RACK Gigabit switch. To achieve cascading management.
  • the cabinet adopts a RACK whole cabinet, and the management link is interconnected with the node middle board in the RACK whole cabinet, and the power supply and management signals are transmitted through the secondary power board.
  • Another object of the present invention is to provide a method for designing an SAS Switch controller extension architecture, the design method comprising the following steps:
  • the controller is designed as a network switch board and a SAS switch board, and the number of the SAS switch boards is set to multiple;
  • the management link is interconnected with the node middle board in the cabinet through the I2C bus, and the node middle board is connected to the SAS switch main board and the RMC;
  • the outside of the controller is respectively connected to the storage resource pool, the network switch board, the SAS switch board, and the node middle board through the SAS line.
  • the controller is provided with a network switch board and three SAS switch boards, the network switch board is placed in the upper left area space, three SAS The switch boards are placed in the lower left, upper right, and lower right areas respectively.
  • the network switch board is provided with three RJ45 100M network ports and one RJ45 Gigabit network port.
  • the three 100M network ports are respectively connected to three SAS switch mainboard network ports, and one Gigabit network port is connected to the RACK Gigabit switch.
  • Each SAS switch mainboard is provided with 17 SAS hard disk interfaces, which are connected to the storage pool JBOD or a separate external hard disk, and are connected to the computing node SAS card to implement interaction between data and commands between the computing node and the storage node.
  • the overall architecture of the controller is designed as a network switching board and a SAS switch main board in a 1U height space, and the plurality of SAS switch boards are uniformly managed by the network switching board, and the controller
  • the uplink port is connected to the SAS card or the computing node, and the downlink port is connected to the storage resource pool or directly connected to the hard disk.
  • the overall architecture effectively integrates the computing resource and the storage resource pool, and is deployed in a limited space with high density and integrated unified management. The effect of maximizing resource usage is achieved, thereby realizing storage resource sharing and improving the overall performance of the server.
  • FIG. 1 is a schematic diagram of a schematic diagram of an extended architecture of a SAS Switch controller according to an embodiment of the present invention
  • FIG. 2 is a front view of a SAS Switch controller according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a whole cabinet management architecture of a SAS Switch controller according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of an extended architecture connection of a SAS Switch controller according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of implementing a method for designing an extended architecture of a SAS Switch controller according to an embodiment of the present invention.
  • the present invention provides a distributed architecture of a Distributed File System (HDFS) SAS Switch controller.
  • HDFS is highly fault-tolerant and is deployed on low-cost hardware to provide high-throughput access to application data. It is suitable for applications with very large data sets, and HDFS relaxes POSIX requirements and can be streamed. Form access to data in the file system.
  • the SAS Switch controller is designed to extend the architecture.
  • the storage resource pool is connected to the compute nodes through the SAS switch, which can allocate resources reasonably, expand more server pooling resource scheduling, and efficiently apply computing and storage resources.
  • an embodiment of the present invention provides a SAS switch (Switch) controller expansion architecture.
  • the controller can be designed in a 1U4 architecture, including a network switch board and three SAS switch boards.
  • the network switch board can be configured. Placed in the upper left area, the three SAS switch boards can be placed in the lower left, upper right, and lower right areas respectively.
  • the single SAS switch board can use the PM8056 chip, which can connect 68 devices.
  • the motherboard supports hot swapping.
  • the three SAS switch boards can provide a total of 204 ports.
  • the uplink port of the controller is connected to the SAS card or the computing node, and the downlink port thereof is connected to the storage resource pool or directly connected to the hard disk.
  • the management link of the controller is interconnected with the node middle board in the whole rack of the rack server (RACK) through an Inter-Integrated Circuit (I2C) bus, and the power supply and management signals are transmitted through the secondary power board.
  • the node midplane communicates with the SAS switch mainboard through I2C, and the Reactor Monte Carlo code (RMC) communicates with the node midplane through I2C to realize the monitoring and management of the entire system.
  • the external part of the controller is connected to the storage resource pool, the network switch board, the SAS switch main board, and the node middle board through the SAS line, thereby realizing resource allocation of the entire cabinet extension architecture.
  • the network switch board may include three RJ45 100M network ports and one RJ45 Gigabit network port, and the three 100M network ports respectively connect three SAS switch mainboard network ports, the Gigabit network The port is connected to the RACK Gigabit switch to implement cascading management.
  • Each SAS switch mainboard is provided with 17 SAS hard disk interfaces, which are connected to the storage pool JBOD or a separate external hard disk, and are connected to the computing node SAS card to implement interaction between data and commands between the computing node and the storage node.
  • the SAS Switch controller of the embodiment implements data exchange and unified management of the computing resource pool and the storage resource pool through the foregoing connection manner, and forms an overall control extension architecture.
  • the SAS switch controller is designed as a network switch board and a SAS switch board, and the number of the SAS switch boards is set to multiple;
  • the management link is interconnected with the node middle board in the cabinet through the I2C bus, and the node middle board is connected to the SAS switch main board and the RMC;
  • the outside of the controller is respectively connected to the storage resource pool, the network switch board, the SAS switch board, and the node middle board through the SAS line.
  • the controller is provided with a network switch board and three SAS switch boards, and the network switch board can be placed in the upper left area space, and the three SAS switch boards can be placed in the lower left, upper right, and lower right area respectively.
  • the network switch board can be configured with three RJ45 100M network ports and one RJ45 Gigabit network port.
  • the three 100M network ports are respectively connected to the three SAS switch mainboard network ports, and one Gigabit network port is connected to the RACK Gigabit switch.
  • Each SAS switch board is equipped with 17 SAS hard disk interfaces, which can connect 17 SAS lines.
  • the hard disk interface is connected to the storage pool JBOD or a separate external hard disk, and is connected to the compute node SAS card to implement the interaction between the data and the command between the computing node and the storage node.
  • the SAS Switch controller expansion architecture in this embodiment may include three SAS switches, and the controller is an integrated design on the RACK whole cabinet product.
  • the entire cabinet is distributed with a network switch, a computing server, a SAS switch, a storage resource pool JBOD, and the like. .
  • only a single SAS switch can be used for cascading in a small range.
  • a separate network port on the SAS switch is used to connect to the management switch, and the management and data distribution can be shared and flexibly matched.

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Abstract

一种SAS Switch控制器扩展架构及设计方法，所述控制器包括网络交换板和多个SAS交换机主板，控制器的上行端口与SAS卡或计算节点连接，其下行端口与存储资源池连接或直接挂接硬盘。控制器的管理链路通过I2C总线与RACK整机柜中的节点中板互联，节点中板通过I2C与SAS交换机主板及RMC连接，所述控制器的外部通过SAS线分别与所述存储资源池、网络交换板、SAS交换机主板以及节点中板连接。该架构有效整合了计算资源与存储资源池，在有限的空间内高密度部署，集成化统一管理，实现资源使用最大化的效果，从而实现存储资源共享，提升服务器的整体性能。

Description

一种SAS Switch控制器扩展架构及设计方法
本申请要求于2017年11月23日提交中国专利局、申请号为201711185479.0、申请名称为“一种SAS Switch控制器扩展架构及设计方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及一种SAS Switch控制器扩展架构及设计方法，属于服务器存储资源扩展设计领域。
背景技术
随着大数据和云平台等关键技术的不断突破，日常生活工作中形成海量的数据信息交互，从而对服务器产品计算能力的要求逐渐提高，对服务器数据存储量的要求也不断提升。针对服务器高密度的计算与海量的存储数据，如何更合理的利用资源、平衡服务器计算及存储资源的访问变得尤为重要。而传统的服务器通过网线、交换机级联，各服务器独立运行，存在计算资源和存储资源整合不够均匀，资源利用率低的问题。
发明内容
本发明的目的在于提供一种SAS Switch控制器扩展架构及设计方法，实现资源集中管理与整合分配，提高资源利用率。
本发明采用以下技术方案予以实现：
一种SAS Switch控制器扩展架构，所述控制器包括网络交换板和多个SAS交换机主板，控制器的上行端口与SAS卡或计算节点连接，其下行端口与存储资源池连接或直接挂接硬盘。控制器的管理链路通过I2C总线与RACK整机柜中的节点中板互联，通过二级电源板进行供电和管理信号的传输。节点中板通过I2C与SAS交换机主板连接通信，RMC通过I2C与节点中板连接通信，实现整个系统的监控管理。所述控制器的外部通过SAS线分别与所述存储资源池、网络交换板、SAS交换机主板以及节点中板连接，实现整机柜扩展架构的资源分配。
基于上述方案，本发明做如下优化：
所述控制器采用1U4结构设计，包括一个网络交换板和三个SAS交换机主板，所述网络交换板放置在左上区域空间，三个SAS交换机主板分别放置在左下、右上和右下区域空间。
所述SAS交换机主板采用PM8056芯片，每个主板可提供68个接口。
所述网络交换板包括三个RJ45百兆网口和一个RJ45千兆网口，所述三个百兆网口分别连接三个SAS交换机主板网口，所述千兆网口上联RACK千兆交换机，实现级联管理。
所述机柜采用RACK整机柜，管理链路与RACK整机柜中的节点中板互联，通过二级电源板进行供电和管理信号的传输。
本发明的另一目的在于提供一种SAS Switch控制器扩展架构的设计方法，所述设计方法包括以下步骤：
将控制器设计为网络交换板和SAS交换机主板两部分，且所述SAS交换机主板的数量设置为多个；
将控制器的上行端口与SAS卡或计算节点连接，下行端口与存储资源池连接或直接挂接硬盘；
通过I2C总线将管理链路与机柜中的节点中板互联，并将节点中板与SAS交换机主板及RMC连接；
将控制器的外部通过SAS线分别与所述存储资源池、网络交换板、SAS交换机主板以及节点中板连接。
作为一种优化，如上所述的SAS Switch控制器扩展架构的设计方法，所述控制器设置有一个网络交换板和三个SAS交换机主板，所述网络交换板放置在左上区域空间，三个SAS交换机主板分别放置在左下、右上和右下区域空间。所述网络交换板设置有三个RJ45百兆网口和一个RJ45千兆网口，三个百兆网口分别连接三个SAS交换机主板网口，一个千兆网口上联RACK千兆交换机。
所述每个SAS交换机主板设置有17个SAS硬盘接口，其向下连接存储池JBOD或单独的外挂硬盘，向上连接计算节点SAS卡，实现数据与命令在计算节点与存储节点之间的交互。
发明内容中提供的效果仅仅是实施例的效果，而不是发明所有的全部效果，上述技术方案中的一个技术方案具有如下优点或有益效果：
本发明实施例的SAS Switch控制器扩展架构及设计方法，控制器整体架 构在1U高度空间内设计为网络交换板和SAS交换机主板两部分，通过网络交换板统一管理多个SAS交换机主板，控制器的上行端口与SAS卡或计算节点连接，下行端口与存储资源池连接或直接挂接硬盘，整体架构有效整合了计算资源与存储资源池，在有限的空间内高密度部署，集成化统一管理，实现资源使用最大化的效果，从而实现存储资源共享，提升服务器的整体性能。
附图说明
图1是本发明实施例的SAS Switch控制器扩展架构逻辑示意图；
图2是本发明实施例的SAS Switch控制器的前视图；
图3是本发明实施例的SAS Switch控制器整机柜管理架构示意图；
图4是本发明实施例的SAS Switch控制器扩展架构连接示意图；
图5是本发明实施例的SAS Switch控制器扩展架构设计方法的实现流程图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
基于背景技术中所述的技术问题，本发明提供一种分布式文件系统(简称HDFS)SAS Switch控制器扩展架构设计。HDFS具有高容错性的特点，用来部署在低廉的硬件上，可提供高吞吐量来访问应用程序的数据，适合有超大数据集的应用程序，并且HDFS放宽了POSIX的要求，可以以流的形式访问文件系统中的数据。SAS Switch控制器扩展架构设计，通过SAS交换机将存储资源池与计算节点拉通，可合理分配资源，同时扩展更多的服务器统筹资源调度，高效应用计算与存储资源。
如图1至图4所示，本发明实施例提供一种SAS交换机(Switch)控制器扩展架构，控制器可以采用1U4结构设计，包括一个网络交换板和三个SAS交换机主板，网络交换板可以放置在左上区域空间，三个SAS交换机主板可以分别放置在左下、右上和右下区域空间。所述单个SAS交换机主板可以采用PM8056芯片，可外接68个设备，主板支持热插拔，三个SAS交换机主板 总共可提供204个端口。
具体来说，控制器的上行端口与SAS卡或计算节点连接，其下行端口与存储资源池连接或直接挂接硬盘。控制器的管理链路通过内部集成电路(Inter-Integrated Circuit，I2C)总线与机架伺服器(RACK)整机柜中的节点中板互联，通过二级电源板进行供电和管理信号的传输。节点中板通过I2C与SAS交换机主板连接通信，反应堆蒙特卡罗程序(Reactor Monte Carlo code，RMC)通过I2C与节点中板连接通信，实现整个系统的监控管理。所述控制器的外部通过SAS线分别与所述存储资源池、网络交换板、SAS交换机主板以及节点中板连接，实现整机柜扩展架构的资源分配。
更具体来说，所述网络交换板可以包括三个RJ45百兆网口和一个RJ45千兆网口，所述三个百兆网口分别连接三个SAS交换机主板网口，所述千兆网口上联RACK千兆交换机，实现级联管理。所述每个SAS交换机主板设置有17个SAS硬盘接口，其向下连接存储池JBOD或单独的外挂硬盘，向上连接计算节点SAS卡，实现数据与命令在计算节点与存储节点之间的交互。
本实施例的SAS Switch控制器通过上述连接方式，实现了计算资源池与存储资源池的数据交换与统一管理，形成整体的控制扩展架构。
如图5所示，给出了一种SAS Switch控制器扩展架构的设计方法，所述设计方法包括以下步骤：
将SAS Switch控制器设计为网络交换板和SAS交换机主板两部分，且所述SAS交换机主板的数量设置为多个；
将控制器的上行端口与SAS卡或计算节点连接，下行端口与存储资源池连接或直接挂接硬盘；
通过I2C总线将管理链路与机柜中的节点中板互联，并将节点中板与SAS交换机主板及RMC连接；
将控制器的外部通过SAS线分别与所述存储资源池、网络交换板、SAS交换机主板以及节点中板连接。
具体而言，所述控制器设置有一个网络交换板和三个SAS交换机主板，网络交换板可以放置在左上区域空间，三个SAS交换机主板可以分别放置在左下、右上和右下区域空间。所述网络交换板可以设置有三个RJ45百兆网口 和一个RJ45千兆网口，三个百兆网口分别连接三个SAS交换机主板网口，一个千兆网口上联RACK千兆交换机。每个SAS交换机主板设置有17个SAS硬盘接口，可连接17条SAS线，每个SAS线可以连接4块硬盘，从而可外接17*4＝68个设备。硬盘接口向下连接存储池JBOD或单独的外挂硬盘，向上连接计算节点SAS卡，实现数据与命令在计算节点与存储节点之间的交互。
本实施例中的SAS Switch控制器扩展架构可以包含3个SAS交换机，控制器为RACK整机柜产品上的集成设计，整机柜上分布有网络交换机、计算服务器、SAS交换机、存储资源池JBOD等。在实际应用中可以只使用单一的SAS交换机进行小范围内级联，同时SAS交换机上有独立的网口用于连接管理交换机，同样可以实现管理与数据分配共享，灵活搭配。
以上所述仅为本发明的较佳实施例而已，并不用以限定本发明，对于本技术领域的技术人员来说，在不脱离本发明原理的前提下所作的任何修改、改进和等同替换等，均包含在本发明的保护范围内。

Claims (9)

  1. 一种SAS Switch控制器扩展架构，其特征在于，所述控制器包括网络交换板和多个SAS交换机主板，控制器的上行端口与SAS卡或计算节点连接，下行端口与存储资源池连接或直接挂接硬盘，控制器的管理链路通过I2C总线与机柜中的节点中板互联，节点中板通过I2C与SAS交换机主板及RMC连接，所述控制器的外部通过SAS线分别与所述存储资源池、网络交换板、SAS交换机主板以及节点中板连接。
  2. 根据权利要求1所述的一种控制器扩展架构，其特征在于，所述控制器包括一个网络交换板和三个SAS交换机主板，所述网络交换板放置在左上区域空间，三个SAS交换机主板分别放置在左下、右上和右下区域空间。
  3. 根据权利要求2所述的一种控制器扩展架构，其特征在于，所述SAS交换机主板采用PM8056芯片。
  4. 根据权利要求2所述的一种控制器扩展架构，其特征在于，所述网络交换板包括三个RJ45百兆网口和一个RJ45千兆网口，所述三个百兆网口分别连接三个SAS交换机主板网口，所述千兆网口上联RACK千兆交换机。
  5. 根据权利要求1所述的一种控制器扩展架构，其特征在于，所述机柜采用RACK整机柜，管理链路与RACK整机柜中的节点中板互联，通过二级电源板进行供电和管理信号的传输。
  6. 一种SAS Switch控制器扩展架构的设计方法，其特征在于，所述设计方法包括以下步骤：
    将控制器设计为网络交换板和SAS交换机主板两部分，且所述SAS交换机主板的数量设置为多个；
    将控制器的上行端口与SAS卡或计算节点连接，下行端口与存储资源池连接或直接挂接硬盘；
    通过I2C总线将管理链路与机柜中的节点中板互联，并将节点中板与SAS交换机主板及RMC连接；
    将控制器的外部通过SAS线分别与所述存储资源池、网络交换板、SAS交换机主板以及节点中板连接。
  7. 根据权利要求6所述的一种SAS Switch控制器扩展架构的设计方法，其特征在于，所述控制器设置有一个网络交换板和三个SAS交换机主板，所 述网络交换板放置在左上区域空间，三个SAS交换机主板分别放置在左下、右上和右下区域空间。
  8. 根据权利要求7所述的一种SAS Switch控制器扩展架构的设计方法，其特征在于，所述网络交换板设置有三个RJ45百兆网口和一个RJ45千兆网口，三个百兆网口分别连接三个SAS交换机主板的网口，一个千兆网口上联RACK千兆交换机。
  9. 根据权利要求6所述的一种SAS Switch控制器扩展架构的设计方法，其特征在于，所述每个SAS交换机主板设置有17个SAS硬盘接口。
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