Storage controller, storage device, information processing system, and storage controlling method
US8898541B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2012 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | Jan 12, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1048
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage controller includes an error correcting code managing portion, an address managing portion and an error correcting portion. The error correcting code managing portion manages a correspondence relationship between predetermined plural pieces of unit data, and a second error code corresponding to the plural pieces of unit data every entry when plural pieces of unit data and a second error correcting code are stored in a storage portion. The address managing portion manages a correspondence relationship between logical addresses and the entries in the error correcting code managing portion. The error correcting portion acquires the entry in the error correction managing portion corresponding to the logical address as an object of read from the address managing portion, and carries out error correction based on the plural pieces of unit data managed in the entry concerned, and the second error correcting code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.