A fast and fine-grained recovery method and device based on backup data

Abstract

The present invention discloses a fast and fine-grained recovery method and device based on backup data. The method includes: step S1, backing up disk data of a virtual machine or a physical machine to a backup server, storing it in a designated directory, and generating a configuration file; Step S2, create a fuse mapping directory in the specified directory, write into the temporary directory and the mounting directory; step S3, when selecting backup data recovery, run the fuse service, map the fuse mapping directory and the backup data directory, and intercept the fuse mapping directory For the IO read and write operations below, the write file operation is redirected to the temporary directory, and the read file operation is redirected to the backup data directory; step S4, querying the disk partition and type corresponding to the temporary disk file, traversing the temporary disk file, and Each partition is mounted under the mounted directory as a directory; step S5, select the file or directory to be restored under the mounted directory, and send the selected data to the target machine.

Description

technical field [0001] The invention relates to the technical field of computer disaster recovery backup, in particular to a fast fine-grained recovery method and device based on production host backup data. Background technique [0002] With the rapid development and popularization of computer technology, all walks of life rely more and more on computers, and at the same time, computer data and security are becoming more and more important. [0003] However, many servers inevitably have some security loopholes or flaws, through which some computer hackers may enter the server and perform illegal operations. Or some misoperations by administrators may cause data loss and damage from time to time. [0004] In order to prevent some unpredictable events from causing the loss of important server data, it is necessary to add backup protection to the server. Usually, disk files and metadata information are backed up for the production host. When a disaster occurs, a virtual mach...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies in the above-mentioned prior art, the purpose of the present invention is to provide a fast and fine-grained recovery method and device based on backup data, so that when a disaster occurs, important data files can be quickly and accurately recovered based on the backup data of the production host , so as to overcome the time-consuming defects of ordinary backup and recovery methods, reduce the recovery time of effective data, and provide more efficient disaster recovery protection

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