Storage control apparatus and storage control apparatus control method
US8719620B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 29, 2011 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Apr 17, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1092
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention reduces the amount of rebuild processing and executes a rebuild process efficiently. Multiple storage devices configure a parity group. Of the multiple storage devices, a prescribed storage device in which a failure has occurred is blocked. Each storage device stores management information. The management information manages from among the storage areas of the storage device a prescribed area having data from a higher-level apparatus. A controller determines whether a storage area of the prescribed storage device is the prescribed area based on the management information, and executes a rebuild process with respect to the area determined to be the prescribed area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.