Hard disk fault handling method, array controller, and hard disk
US11264055B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2021 |
| Grant date | Mar 1, 2022 |
| Priority date | — |
| Expiry date | Apr 9, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/1883
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage array includes a plurality of hard disks, where each of the hard disks is divided into a plurality of chunks, and a plurality of chunks of different hard disks form a chunk group by using a redundancy algorithm. The storage array obtains fault information of a faulty area in a first hard disk, and determines a faulty chunk storing the lost data according to the fault information. The storage array recovers the data in the faulty chunk by using another chunk in a chunk group to which the faulty chunk belongs and stores the recovered data in a recovered chunk. The recovered chunk is located in a second hard disk which is not a hard disk for forming the chunk group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.