Path switching method and device and computer readable storage medium

Abstract

The invention provides a path switching method and device and a computer readable storage medium, and the method comprises the steps that a first controller enables physical links corresponding to allfirst ports to be disconnected, and enables the controller identification of the first controller to be transmitted to a second controller, wherein the first port is a port on the first controller; the second controller determines a second port corresponding to each first port based on the controller identifier of the first controller and a preset port binding relationship, and creates a virtualfirst port on the second port, wherein the second port is a port on the second controller; and the second controller accesses the virtual first port to a storage area network where the multi-control storage system is located. According to the technical scheme provided by the invention, the path can be switched more quickly, and the influence of path switching on the service on the server is reduced.

Description

technical field [0001] The present application relates to the field of storage, in particular to a path switching method, device and computer-readable storage medium. Background technique [0002] In a SAN (Storage Area Network, storage area network) network, multiple controllers of a multi-controller storage system can usually access the SAN network through different ports, where a port on a controller may be called a target port (target port). The server (for example: a service server) can also access the SAN network through a plurality of different ports, wherein the port on the server can be called an initiator port (initiator port). [0003] The start port on the server and the target port on the controller can form various connection relationships. see figure 1 , is a schematic diagram of the architecture of a SAN network shown in this application, such as figure 1 As shown, there are two start ports on the server (business server), two target ports on controller 1,...

AI Technical Summary

Problems solved by technology

[0006] However, the switching path of the existing technology takes too long, which may have a significant impact on the stability and continuity of the business on the server.

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