Title:
DATA RECONSTRUCTION METHOD AND DEVICE IN STORAGE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/103512
Kind Code:
A1
Abstract:
A data reconstruction scheme in a storage system. The storage system comprises one or more storage nodes, the one or more storage nodes comprise a plurality of hard disks, strips of a stripe are dispersedly stored in the plurality of hard disks, and each strip is stored in one hard disk. A method comprises: when a faulty hard disk is present in the plurality of hard disks, determining a target strip comprised in the strips, the target strip being distributed in the faulty hard disk, and the strip being capable of being read out; determining whether the target strip is data updated recently after a fault occurs to the faulty hard disk; and when data in the target strip is the data updated recently after the fault occurs to the faulty hard disk, taking the data in the target strip as reconstructed data and sending same to an alternative hard disk of the faulty hard disk for storage.
Inventors:
WANG YING (CN)
ZHAO XIAOBAO (CN)
ZHAO XIAOBAO (CN)
Application Number:
PCT/CN2019/103242
Publication Date:
May 28, 2020
Filing Date:
August 29, 2019
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G06F11/14
Foreign References:
| CN109726036A | 2019-05-07 | |||
| CN105183583A | 2015-12-23 | |||
| CN105426483A | 2016-03-23 | |||
| CN106933707A | 2017-07-07 | |||
| US20180095676A1 | 2018-04-05 |
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