Data restoration method, data restoration device and storage system

A technology for data restoration and storage nodes, which is applied in electrical digital data processing, special data processing applications, and redundancy in operations for data error detection. and other problems to achieve the effect of saving system resources and reducing the repair cycle

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

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Problems solved by technology

This periodic detection consumes more system resources. When the system data is large, the data scanning cycle

Method used

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  • Data restoration method, data restoration device and storage system
  • Data restoration method, data restoration device and storage system
  • Data restoration method, data restoration device and storage system

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[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention

[0025] figure 1 A flow chart of the data restoration method according to the embodiment of the present invention is shown. like figure 1 As shown, the method includes:

[0026] S1. Detect abnormal storage nodes in real time, and obtain identification information of the abnormal storage nodes;

[0027] S2. Read index data, wherein, through the index data, the identification information of the storage node where at least one data file is located can ...

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Abstract

The invention provides a data restoration method, a data restoration device and a storage system. The data restoration method includes: detecting abnormal storage nodes in real time, and acquiring identification information of the abnormal storage nodes; reading index data, wherein the identification information of storage nodes of at least one data file can be obtained by the index data; and when the identification information obtained through the index data includes the identification information of the abnormal storage nodes, restoring subfiles which are located in the abnormal storage nodes and of the data files corresponding to the index data.

Description

technical field [0001] The invention relates to the technical field of data storage, in particular to a data restoration method, a data restoration device and a storage system. Background technique [0002] In recent years, with the development of network technology and the popularization of network use, the amount of global data has also shown explosive growth. For such a large amount of data, data reliability becomes very important. In order to improve data reliability, it is necessary to ensure that all data is available. In the prior art, data integrity is periodically checked to prevent data loss caused by failure of data storage nodes. However, in this existing periodic detection, it is necessary to traverse the existing data files in the system according to the index data, read all the data files to calculate the checksum, and calculate the checksum based on the checksum and the index data retained The checksums are compared and recovery is initiated if they do not...

Claims

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Application Information

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IPC IPC(8): G06F11/14G06F17/30
Inventor 欧雄兵
Owner HUAWEI TECH CO LTD
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