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Data storage access device

A data storage and access device technology, applied in the storage field, can solve the problems of limited number of NVMe storage devices, poor maintainability, and inability to expand, and achieve the effect of improving maintainability and integration

Inactive Publication Date: 2017-12-15
北京溢思得瑞智能科技研究院有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In the process of realizing the present invention, the inventor found that the above-mentioned NVMe storage architecture has at least the following defects: due to the limitation of the number of PCIe interfaces, the number of NVMe storage devices connected to the processor unit is limited and cannot be expanded; Poor sex

Method used

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Examples

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Embodiment 1

[0029] see figure 1 , is a schematic structural diagram of a data storage access device provided by an embodiment of the present invention. The data storage access device includes: at least one data storage access unit.

[0030] Each data storage access unit includes: a server node 110, a switch module 120 and at least one storage module 130; the switch module 120 includes an uplink PCIe interface and several downlink PCIe interfaces, and the switch module 120 communicates with the uplink PCIe interface through the uplink PCIe interface The server node 110 is connected (specifically, connected to the PCIe interface in the server node 110), and is respectively connected to the at least one storage module 130 through the several downlink PCIe interfaces; the at least one storage module 130 is distributed Around the switch module 120, the at least one storage module 130 and the switch module 120 can be independently hot-swappable.

[0031] First, the expansion capability is int...

Embodiment 2

[0047] see Figure 4 , is a schematic structural diagram of another data storage access device provided by an embodiment of the present invention. On the basis of the foregoing embodiments, this embodiment provides a specific implementation manner of the server node in each data storage access unit.

[0048] The data storage access device includes: at least one data storage access unit.

[0049] Each data storage access unit includes: a server node, a switch module and at least one storage module; the switch module includes an uplink PCIe interface and several downlink PCIe interfaces, and the switch module is connected to the server node through the uplink PCIe interface (specifically, connected to the PCIe interface in the server node), and respectively connected to the at least one storage module through the several downlink PCIe interfaces; the at least one storage module is distributed around the switch module, and The at least one storage module and the switching modul...

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Abstract

The embodiment of the invention provides a data storage access device. The device comprises at least one data storage access unit. Each data storage access unit comprises a server node, a switching module and at least one storage module, wherein the switching module comprises an uplink PCIe interface and a plurality of downlink PCIe interfaces, the switching module is connected with the server node through the uplink PCIe interface and connected with at least one storage module through the downlink PCIe interfaces; the at least one storage module is distributed around the switching module and can achieve independent hot plug. The switching modules are additionally arranged between the server nodes and the storage modules, and the number of the storage modules which can be accessed by the server nodes is expanded; when the switching module or the storage module corresponding to one certain server node needs to be replaced, the storage module and the switching module can be independently plugged without being powered off, access of other server nodes to the storage modules supported by the server nodes is not interrupted, and maintainability is improved.

Description

technical field [0001] Embodiments of the present invention relate to the field of storage technologies, and in particular, to a data storage access device. Background technique [0002] In current network application scenarios, high-speed peripheral component interconnect express (PCIe) is a high-speed serial computer expansion bus standard proposed by Intel in 2001. PCIe belongs to high-speed serial point-to-point dual-channel high-bandwidth transmission. The connected devices allocate exclusive channel bandwidth and do not share bus bandwidth. It mainly supports functions such as active power management, error reporting, and end-to-end reliable transmission. [0003] The Non-Volatile Memory Express (NVMe) standard is a storage controller interface standard developed for enterprises and general client systems that use PCIe solid-state storage devices. The memory under the NVMe architecture can improve performance and can Reduced latency by more than 50%, and greatly reduc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/40
CPCG06F13/4081
Inventor 梁小健
Owner 北京溢思得瑞智能科技研究院有限公司
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