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Data backup method and related device

A data backup and backup technology, applied in the field of data processing, can solve problems such as multiple storage spaces, achieve high efficiency and save data volume

Active Publication Date: 2013-04-17
CHENGDU HUAWEI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, since T3 performs cumulative backup at all times, this solution requires more storage space compared to the prior art 1

Method used

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  • Data backup method and related device

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Experimental program
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Embodiment Construction

[0061] Embodiments of the present invention provide a data backup method and a related device, which are used to improve the efficiency of data recovery to a relatively recent time point.

[0062] see image 3 , an embodiment of the data backup method in the embodiment of the present invention includes:

[0063] 301. Perform a full backup of the data and generate a full image;

[0064] When the data is backed up for the first time, the data backup device needs to perform a full backup of the data, copy the data of the client to be backed up to the backup server (that is, the backup server stores the data of the client to be backed up), and generate the data corresponding to each data block of the data. A full image of , the full image is used to point to each data block storing the data.

[0065] The data block is the actual backup data of the client to be backed up;

[0066] The full image may be a set of pointers, and the content of the pointers in the set of pointers is ...

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Abstract

An embodiment of the invention discloses a data backup method and a related device to improve efficiency in recovering data to near time points. The method in the embodiment includes: acquiring information of a variable data block which is a data block changed relative to a front backup; storing data corresponding to the variable data block in a backup server, and enabling an omnidirectional image generated in first-time backup to point at all updated data blocks, wherein the first-time backup is an omnidirectional backup; and directing a first backup set to the omnidirectional image, wherein the first backup set is a backup set corresponding to the current backup.

Description

technical field [0001] The invention relates to the field of data processing, in particular to a data backup method and a related device. Background technique [0002] With the rapid development of information technology, the amount of enterprise data has increased sharply, and the importance of data has increased significantly. In order to prevent data loss due to operational errors or system failures, data is often backed up from the application host to the backup storage medium through backup software. After the application host is abnormal, it is restored from the backup storage medium. [0003] The three backup methods commonly used in traditional backup are: full backup, cumulative incremental backup and differential incremental backup. Among them, the entire data set is backed up during the full backup, the data that has changed since the previous full backup is backed up during the cumulative incremental backup, and the data that has changed since the previous backu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/14
Inventor 曾蜀芳张磊
Owner CHENGDU HUAWEI TECH
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