A RSSD mass storage system based on pcie switch

Abstract

The invention discloses a PCIe Switch-based RSSD mass storage system, comprising: a first CPU and a second CPU arranged on a motherboard, a first PCIE Switch card, a second PCIE Switch card, a third PCIE Switch card, and, Several RSSD disks arranged on the first backplane, several RSSD disks arranged on the second backplane; the first CPU is respectively connected with the first PCIE Switch card and the upstream port of the second PCIE Switch card, and the second CPU and The uplink port of the third PCIE Switch card is connected; the downlink port of the first PCIE Switch card is connected to some RSSD disks arranged on the first backplane, and the downlink port of the third PCIE Switch card is connected to some RSSD disks arranged on the second backplane To connect, the downlink port of the second PCIE Switch card is respectively connected to the remaining RSSD disks arranged on the first backplane and the remaining RSSD disks arranged on the second backplane.

Description

technical field [0001] The invention relates to the technical field of server system design, in particular to a PCIe Switch-based RSSD mass storage system. Background technique [0002] In the server system, the main board and different types of sub-cards are matched together to realize various functions of the system; on the main board and sub-card side, PCIe high-speed bus is generally used to complete high-speed signal transmission. 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 active power management, error reporting, end-to-end reliable transmission, hot swapping and quality of service ( QOS) and other functions. [0003] As a high-speed bus, PCIe can achieve different rates under different bandwidths. As a commonly used bandwidth expansion controller, PCIe Switch chip can realize the expansion of uplink and downlink...

AI Technical Summary

Problems solved by technology

[0006] 1. The number of directly connected hard disks is limited, and a larger storage space cannot be realized;

[0007] 2. The RSSD design based on PCIe Switch is not systematic enough, and there are compatibility and backplane management problems when PCIe Switch cards are mixed and matched with backplanes;

[0008] 3. When two backplanes use the same CPLD FW version, there is an indistinguishable problem

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