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Snapshot recovery method and device, computer equipment and storage medium

A recovery method, computer technology, applied in the computer field, can solve problems such as data loss and incompleteness

Pending Publication Date: 2022-02-08
济南浪潮数据技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It may lead to the loss of original data after recovery, or incomplete

Method used

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  • Snapshot recovery method and device, computer equipment and storage medium
  • Snapshot recovery method and device, computer equipment and storage medium
  • Snapshot recovery method and device, computer equipment and storage medium

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Embodiment Construction

[0064] 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 those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0065] It should be noted that the snapshot recovery method provided by the embodiment of the present application may be executed by a snapshot recovery device, and the snapshot recovery device may be implemented as part or all of computer equipment through software, hardware, or a combination of software and hardware. , wherein the computer device may be a s...

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Abstract

The invention discloses a snapshot recovery method and device, computer equipment and a storage medium, which are suitable for the technical field of computers, and the method comprises the following steps: obtaining target bitmap information of a target snapshot to be recovered, wherein the target bitmap information is used for recording data change between the target snapshot and the last snapshot; obtaining current bitmap information and current data corresponding to the current moment; according to the current bitmap information and the target bitmap information, determining the variable quantity between the data corresponding to the current moment and the data corresponding to the target snapshot; and recovering the target snapshot according to the variable quantity and the current data. By adopting the method, only the changed data needs to be copied, so that the data copying time is shortened, the target snapshot recovery efficiency is improved, the data integrity is ensured, and the data loss condition is reduced. The recovery of the disk snapshot data is quickly completed under the condition of ensuring the safety and completeness of the original data.

Description

technical field [0001] The present invention relates to the technical field of computer technology, in particular to a snapshot recovery method, device, computer equipment and storage medium. Background technique [0002] Disk snapshot (Snapshot) is a fast file system backup for the entire disk volume. The main difference from other backup methods is speed. When taking a disk snapshot, no file copying is involved. No matter how large the amount of data is, generally speaking, the backup operation can usually be completed within one second. Using snapshot data for testing will not cause any damage to production data. Snapshots are also an ideal source of test data for data mining and eDiscovery applications. In terms of disaster recovery, snapshots are a very effective method, which is very suitable for data recovery in the event of logical errors such as malware attacks, human errors, and data corruption. [0003] However, when restoring disk snapshot data, all data on t...

Claims

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Application Information

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IPC IPC(8): G06F11/14
CPCG06F11/1471
Inventor 李红磊刘为峰
Owner 济南浪潮数据技术有限公司