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Data recovery method, system and device and computer readable storage medium

A recovery method and recovery system technology, applied in computing, electrical digital data processing, input/output process of data processing, etc., can solve problems such as retention for a long time, affecting user data recovery, errors, etc.

Pending Publication Date: 2022-05-06
SHANDONG YUNHAI GUOCHUANG CLOUD COMPUTING EQUIP IND INNOVATION CENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When existing disks are in use, an error often occurs in one of the disks. In this case, under the disk inspection operation performed by a normal RAID (Redundant Arrays of Independent Disks, disk array) server, it is Errors cannot be found, so this kind of on-chip errors will often be kept for a long time, affecting the recovery of user data

Method used

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  • Data recovery method, system and device and computer readable storage medium
  • Data recovery method, system and device and computer readable storage medium
  • Data recovery method, system and device and computer readable storage medium

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Embodiment Construction

[0037] The core of the present application is to provide a data recovery method, system, device and computer-readable storage medium, which can realize the recovery support for additional error chip errors without adding additional check disks.

[0038] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0039] Please refer to figure 1 , figure 1 It is a flow chart of the steps of a data recovery method pro...

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PUM

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Abstract

The invention discloses a data recovery method, system and device and a computer readable storage medium, and the data recovery method comprises the steps: adding a verification piece in a distributed storage system, and building a global position information table including the verification piece; constructing a Vandermonde matrix based on the global position information table, and calculating verification values of all verification pieces by using the Vandermonde matrix; judging whether an error slice exists in each strip of the distributed storage system or not; and if yes, recovering the data by using the coding relationship of the RAID group in the strip and the check value. According to the method and the device, the recovery support of the chip error of the additional error can be realized, and a check disk does not need to be additionally added.

Description

technical field [0001] The present application relates to the field of storage control, in particular to a data recovery method, system, device and computer-readable storage medium. Background technique [0002] When existing disks are in use, an error often occurs in one of the disks. In this case, under the disk inspection operation performed by a normal RAID (Redundant Arrays of Independent Disks, disk array) server, it is Errors cannot be found, so such on-chip errors are often retained for a long time, affecting the recovery of user data. [0003] Therefore, how to provide a solution to the above technical problems is a problem that those skilled in the art need to solve at present. Contents of the invention [0004] The purpose of the present application is to provide a data recovery method, system, device and computer-readable storage medium, which can realize recovery support for additional error slice errors without adding an additional check disk. [0005] In o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
CPCG06F3/0619G06F3/067G06F3/0689G06F3/0638
Inventor 吴睿振张旭陈静静张永兴王凛刘彤
Owner SHANDONG YUNHAI GUOCHUANG CLOUD COMPUTING EQUIP IND INNOVATION CENT CO LTD
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