Storage control device and storage control method
US9519542B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2015 |
| Grant date | Dec 13, 2016 |
| Priority date | — |
| Expiry date | Jul 12, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2094
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage control apparatus includes a controller to, when more storage devices, among a plurality of storage devices across which a plurality of information areas storing information representing redundant data and one or more spare areas are distributed, than the number of the spare areas fail, perform a rebuild process of information stored in a plurality of information areas of a failed first storage device included in the plurality of combinations of the plurality of information areas and the one or more spare areas, the rebuild process including restoring information corresponding to one information area of the failed first storage device included in one combination among the plurality of combinations, and determining a write destination storage device to which the restored information is to be written in accordance with the number of times information is read from a non-failed second storage device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.