Storage unit based on PCI-E multi-master share

Abstract

The invention discloses a storage unit based on a PCI-E multi-master share. Based on PCI-E, integration is carried out by combining the PC / IP application mode of a memory host interface protocol. The storage unit mainly comprises a master machine end PCI-E outer connecting unit, a memory end master share unit, a master end visit control isolation; through the master machine end PCI-E outer connecting unit, a signal of a PCI-E plug slot is restored and amplified, and an output interface is transformed to be a QSFP to transmit and define; through the memory end master share unit, the QSFP is transmitted and defined and restore the path to be PCI-E protocol, and connect it to a SAS disk management controller; the SAS controller is virtualized at the memory end, thus a plurality of virtual SAS controllers are virtualized; the virtual SAS address and the master name are bound. The storage unit overcomes the shortcoming of the storage and connection method of the traditional server, and provides a transmission method with high speed rate and low delay; moreover, the equipment cost is reduced.

Description

technical field [0001] The invention relates to storage design technology, specifically a storage unit shared by multiple hosts based on PCI-E. Background technique [0002] Currently common server storage connection methods, as attached figure 1 As shown, this method of connection requires the storage to have complete operation and management functions, that is, the storage unit must be able to operate and manage independently, such as managing disks, establishing host groups, and performing disk mapping according to the connection protocol with the host. The cost of this architecture is quite high. The storage side requires 1+1 redundant controller motherboards. In order to connect more hosts, both the storage side and the server side need to be plugged with expensive interface cards such as IP / FC / IB. While increasing the cost, the connection speed will also be limited by the bandwidth of the connection interface, which cannot give full play to the performance of the back...

AI Technical Summary

Problems solved by technology

The cost of this architecture is quite high. The storage side requires 1+1 redundant controller motherboards. In order to connect more hosts, both the storage side and the server side need to be plugged with expensive interface cards such as IP / FC / IB. While increasing the cost, the connection speed will also be limited by the bandwidth of the connection interface, which cannot give full play to the performance of the back-end storage

[0003] At present, the traditional FC / IP and other interfaces, because they are all converted from PCI-E to FC / IP, so in terms of speed and delay, they cannot compare with the original PCI-E protocol. A storage system with PCI-E host interface

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