RSSD mass storage system based on PCIe Switch

Abstract

The invention discloses an RSSD mass storage system based on a PCIe Switch. The system comprises a first CPU and a second CPU which are arranged on a mainboard, a first PCIE Switch card, a second PCIESwitch card, a third PCIE Switch card, a plurality of RSSDs arranged on a first backboard, and a plurality of RSSDs arranged on a second backboard; the first CPU is respectively connected with uplinkports of a first PCIE Switch card and a second PCIE Switch card, and the second CPU is connected with an uplink port of a third PCIE Switch card; and a downlink port of the first PCIE Switch card isconnected with part of RSSDs arranged on the first backboard, a downlink port of the third PCIE Switch card is connected with part of the RSSDs arranged on the second backboard, and a downlink port ofthe second PCIE Switch card is connected with the rest RSSDs arranged on the first backboard and the rest RSSDs arranged on the second backboard respectively.

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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