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File restoration method and device

A repair method and file technology, applied in the storage field, can solve problems such as file system business interruption

Active Publication Date: 2017-06-13
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a file repair method and device, which are used to solve the problem of file system service interruption in the prior art when files in the file system are repaired

Method used

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Embodiment Construction

[0046] In order to better understand the above objects, schemes and advantages of the embodiments of the present invention, a detailed description is provided below. The detailed description sets forth various embodiments of apparatuses and / or methods by using block diagrams, flowcharts, etc. figures and / or examples. In such block diagrams, flowcharts and / or examples, one or more functions and / or operations are included. Those skilled in the art will understand that: the various functions and / or operations in these block diagrams, flowcharts or examples can be implemented individually or jointly by various hardware, software, and firmware, or by any combination of hardware, software, and firmware. Composite implementation.

[0047] The embodiment of the present invention relates to repairing the designated file, wherein the designated file is a file repaired by using the file repair method provided in the embodiment of the present invention. In the embodiment of the present i...

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Abstract

Disclosed are a file restoration method and device. According to the technical scheme, the problem of service interruption of a file system in the prior art when a file in the file system is restored is solved. The method comprises the steps that a production system receives a first reading request sent from terminal equipment, wherein the first reading request is used for requesting to read a specified file stored in the production system; the production system determines at least one bad block existing in the specified file stored in the production system; the production system sends a second reading request to a standby system, wherein the standby system and the production system store the same file, and the second reading request is used for requesting to read at least one data block corresponding to the bad block in a specified file stored in the standby system; the production system conducts restoration on the specified file stored in the production system according to the at least one data block.

Description

technical field [0001] The invention relates to the field of storage technology, in particular to a file repair method and device. Background technique [0002] With the continuous development of the Internet and information technology, more and more files are stored in file systems such as local file systems and distributed file systems. To make full use of the files stored in the file system, the reliability of the files must first be ensured. To improve file reliability, in addition to redundant backup of files, it is also necessary to repair damaged files. [0003] In the prior art, it is necessary to rely on the user to perform manual operation when repairing the file. For example, when the file system is redundantly backed up by means of disaster recovery, the process of file repair can be as follows: figure 1 shown. The terminal device sends a request to read the specified file to the production system. When there are bad blocks in the specified file and the speci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/14
CPCG06F11/1435G06F11/1448G06F11/1469
Inventor 蒋泽荣黄苏红陈鹏
Owner HUAWEI TECH CO LTD