Storage system
US8037245B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2008 |
| Grant date | Oct 11, 2011 |
| Priority date | — |
| Expiry date | May 29, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2211/1014
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
One code (a compressed redundant code) is created based on a plurality of first redundant codes, each created on the basis of a plurality of data units, and this compressed redundant code is written to a nonvolatile storage area. This compressed redundant code is used to restore either a data element constituting a multiple-failure data, or a first redundant code corresponding to the multiple-failure data, which is stored in an unreadable sub-storage area of a partially failed storage device, and to restore the data element constituting the multiple-failure data which is stored in a sub-storage area of a completely failed storage device, based on the restored either data element or first redundant code, and either another data element constituting the multiple-failure data or the first redundant code corresponding to the multiple-failure data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.