A data recovery method, device, system and medium of a distributed storage system
By setting status signals for the PGs in the distributed storage system and adjusting the order and position of the PGs in the resource reservation queue, the problem of abnormal data recovery caused by bad sectors on the disk was solved, thus ensuring the reliability and security of the data.
CN115454726BActive Publication Date: 2026-07-21JINAN INSPUR DATA TECH CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JINAN INSPUR DATA TECH CO LTD
- Filing Date
- 2022-10-21
- Publication Date
- 2026-07-21
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Figure CN115454726B_ABST
Abstract
The application discloses a data recovery method of a distributed storage system, belongs to the field of storage, and sets a state signal for a PG of the distributed storage system, performs data recovery on the PG according to the order of a resource reservation queue, changes the state signal to an abnormal value when there is data to be recovered that cannot be read and the state signal of the current PG is a default value, adjusts the current PG to the last position of the resource reservation queue, and when there is data that cannot be read and the state signal is an abnormal value, it is proved that the data that can be normally read has been recovered, and the data recovery is ended, which guarantees the recovery of normal data, recovers the data to be recovered as much as possible, and guarantees the reliability and safety of data of the whole system. The application also discloses a data recovery device, system and computer readable storage medium of a distributed storage system, which have the same beneficial effects as the data recovery method of the distributed storage system.
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