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Virtual machine recovery method and server

A recovery method and virtual machine technology, applied in the computer field, can solve problems such as slow recovery speed, and achieve the effect of reducing burden and improving speed

Inactive Publication Date: 2014-07-02
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Regardless of whether the virtual machine is restored locally or off-site, the server needs to read the complete backup data of the virtual machine from the backup space, and the recovery speed is relatively slow.

Method used

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  • Virtual machine recovery method and server
  • Virtual machine recovery method and server
  • Virtual machine recovery method and server

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Embodiment Construction

[0026] see figure 1 , figure 1 It is a schematic structural diagram of a virtual machine backup and restoration system of the present invention. As shown in the figure, the system 10 includes a server 11 , a cache space 12 and a backup space 13 .

[0027] The server 11 divides the backup data of the virtual machine into a plurality of backup data blocks in advance, and each backup data block corresponds to a backup data block identifier, and then each virtual machine corresponds to a group of backup data block identifiers. The backup data blocks of the virtual machine are combined by the association relationship identified by the backup data block, so as to restore the backup data of the virtual machine. Both the association relationship between the backup data blocks corresponding to the virtual machines and the identifiers of the backup data blocks of the virtual machines are recorded in the associated data, and the corresponding relationship between the associated data an...

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Abstract

The invention discloses a virtual machine recovery method and a server. The virtual machine recovery method comprises the steps of obtaining a recovery instruction for recovering a virtual machine, wherein the recovery instruction comprises an identity of the virtual machine; obtaining associated data of the virtual machine according to the identity of the virtual machine, wherein the associated data include the association relation between backup data blocks of the virtual machine and identities of the backup data blocks of the virtual machine; obtaining identities of backup data blocks cached in a cache space; comparing the identities of the backup data blocks of the virtual machine with the identities of the backup data blocks cached in the cache space; if the identities of the backup data blocks of the virtual machine are matched with the identities of the backup data blocks cached in the cache space, reading the backup data blocks from the cache space; if the identities of the backup data blocks of the virtual machine are not matched with the identities of the backup data blocks cached in the cache space, reading the backup data blocks from a backup space; combining the read backup data blocks to be backup data of the virtual machine according to the association relation between the backup data blocks; recovering the virtual machine according to the backup data of the virtual machine. By means of the mode, the virtual machine recovery method and the server can increase the recovery speed of the virtual machine.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a method and server for restoring a virtual machine. Background technique [0002] The disaster recovery backup system refers to the establishment of a backup system locally, and the establishment of one or more backup systems equivalent to the local system in different places. When a disaster occurs in the local backup system, the off-site backup system can also be used to restore data. [0003] A virtual machine refers to a complete computer system that is simulated by software and has complete hardware system functions and runs in a completely isolated environment. When a virtual machine fails, a recovery notification for restoring the virtual machine can be sent to the disaster recovery backup system. After receiving the recovery notification, the disaster recovery backup system sends recovery instructions for restoring the virtual machine to the local server and the loca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/14G06F9/455
Inventor 王建鹏郭良刘振兴
Owner HUAWEI TECH CO LTD
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