Storage apparatus using nonvolatile memory as cache and mapping information recovering method for the storage apparatus
US7636807B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2007 |
| Grant date | Dec 22, 2009 |
| Priority date | — |
| Expiry date | Jun 7, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/222
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage apparatus using a nonvolatile memory as a cache and a mapping information recovering method for the storage apparatus are provided. The storage apparatus includes a mapping information storage module which stores in the nonvolatile memory mapping information of the nonvolatile memory and a first physical block address allocated when the mapping information is stored; a scan module which scans the first physical block address through a second physical block address allocated currently; and a mapping information recovery module which recovers the mapping information between the first physical block address and the second physical block address based on a result of the scan by the scan module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.