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Processing method for I/O (input/output) data access interrupt, system and equipment

A technology of data access and processing method, applied in the field of communication, can solve problems such as service interruption of host server

Active Publication Date: 2012-06-13
CHENGDU HUAWEI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a processing method, system and device for I / O data access interruption, which are used to solve the problem in the prior art that when the in-band virtualization device fails for some reason, the service on the host server is interrupted

Method used

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  • Processing method for I/O (input/output) data access interrupt, system and equipment
  • Processing method for I/O (input/output) data access interrupt, system and equipment

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Embodiment Construction

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0023] figure 1 It is a schematic structural diagram of the in-band virtualization device application scenario based on the I / O data access terminal processing method of this embodiment, as shown in figure 1 As shown, the application scenario of the in-band virtualization device includes: a host server 11 , a virtualization device 12 and a storag...

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Abstract

The invention provides a processing method for I / O (input / output) data access interrupt, a system and equipment. The method includes transmitting second SCSI (small computer system interface) logon instructions to a memory array if virtualization equipment is judged to break down or first paths of a first path group break down completely, and transmitting first SCSI reservation deletion instructions carried with first path identities to the memory array via second paths so that the memory array deletes first SCSI reservation corresponding to the first path identities; transmitting second SCSI reservation setting instructions carried with second path identities to the memory array via the second paths after response information, which is transmitted by the memory array, of the second SCSI logon instruction and response information of the first SCSI deletion instruction are received so that the memory array sets second SCSI reservation corresponding to the second path identities; and processing I / O data access for the memory array via the second paths.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a processing method, system and equipment for I / O data access interruption. Background technique [0002] A dedicated device is virtualized into multiple logical devices through virtualization technology, which can be used by multiple user processes at the same time. This kind of virtualized device is usually called a virtualized device. If the virtualization device is deployed between the host server and the storage array during the I / O data read and write process, in order to realize virtual storage on the path from the host server to the storage device during the I / O read and write process, that is When the I / O data delivered by the host server to the storage array must first reach the virtualization device, and then be delivered from the virtualization device to the storage array, this virtualization device is usually called an in-band virtualization device . ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/24
Inventor 卿翔李小华
Owner CHENGDU HUAWEI TECH
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