Link switching method and system
A link switching and link technology, applied in the Linux field, can solve problems such as IO path failure, and achieve the effect of improving IO efficiency
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[0036] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the accompanying drawings, which cannot be used to limit the protection scope of the present invention.
[0037] Today, with the rapid development of linux technology, almost all servers use the linux operating system. Storage is an indispensable hardware product for servers, and multipath multipath software is a key part of maintaining the path between servers and storage, and it is responsible for data distribution and load balancing. Implement operations such as device mapping and path deletion. Such as figure 1 As shown, the multipath multipath software is divided into the upper user mode multipath tool layer, multipath kernel layer, SCSI protocol layer and Qlogic driver layer. Each layer has its own division of labor. After processing the information collected by each layer, it informs other layers how to operate, so as t...
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