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Difference recovery method and difference recovery device based on FusionComput platform

A recovery method and differential technology are applied in the field of differential recovery devices to achieve the effects of improving business continuity, reducing the amount of recovered data, and reducing network resource occupation

Pending Publication Date: 2020-09-01
EISOO SOFTWARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method completes the data recovery at the corresponding time point in the form of two data coverages, but this method also has obvious disadvantages, that is, no matter what happens, the total amount of restored data is always greater than the amount of data fully backed up

Method used

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  • Difference recovery method and difference recovery device based on FusionComput platform
  • Difference recovery method and difference recovery device based on FusionComput platform
  • Difference recovery method and difference recovery device based on FusionComput platform

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0053] For simple description, the backup medium in this embodiment is local storage, and the virtual disk of the target virtual machine is storage virtualization type storage. The specific recovery process is as follows:

[0054] 1) First, back up the target virtual machine in a full backup at time T1, take a snapshot of the target virtual machine, back up all the disk data to the backup medium, and record changeid1, and delete the backup snapshot after the backup is completed.

[0055] 2) Open the virtual machine and add files test1 and test2 to the virtual machine.

[0056] 3) At time T2, execute a snapshot of the virtual machine, initiate an incremental backup, record changeid2, and delete the snapshot after the backup is completed.

[0057] 4) Open the virtual machine and add files test3 and test4 to the virtual machine. Shut down the virtual machine.

[0058] 5) Choose to restore the backup time point T2.

[0059] 6) Execute a snapshot of the virtual machine to obtain...

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PUM

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Abstract

The invention relates to a difference recovery method and device based on a FusionComput platform. The method comprises the steps of carrying out the snapshot of a virtual machine, defining the snapshot as a current snapshot, and obtaining the position of a difference data block between a backup time point and a current time point; and based on the position of the difference data block, reading and covering the data block at the corresponding position, and writing the data block into a virtual machine to complete recovery. Compared with the prior art, the method and the device have the advantages of reducing the recovery data volume, the recovery time, the network bandwidth occupation amount and the like.

Description

technical field [0001] The present invention relates to a data recovery method, in particular to a difference recovery method and a difference recovery device based on a FusionCompute platform. Background technique [0002] In order to reduce the cost of enterprise data protection and improve protection efficiency, various data protection vendors have proposed various optimization technologies, including full backup (that is, to back up complete data at a certain point in time, such as figure 1 ), incremental backup (that is, only back up the data changed after the last full backup or incremental backup, such as figure 2 ), differential backup (that is, only back up the data that has changed since the last full backup, and the difference from incremental backup is that incremental backup can be done based on the last incremental backup, but differential backup must be based on the last full backup, Such as image 3 ), data deduplication (delete duplicate data in the backu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/14
CPCG06F11/1451G06F11/1469G06F2201/84
Inventor 钱红江贺翔
Owner EISOO SOFTWARE