Apparatus, system, and method for retiring storage regions
US8516343B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2009 |
| Grant date | Aug 20, 2013 |
| Priority date | — |
| Expiry date | Apr 7, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2029/1208
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Apparatuses, systems, and methods are disclosed for retiring storage regions. A determination module (a) determines that data stored in an Error Correcting Code (“ECC”) chunk contains ECC correctable errors, and (b) determines a bit error count for the ECC chunk. The ECC chunk is read from non-volatile solid-state storage media. A threshold module determines if the bit error count satisfies an ECC chunk error threshold. A storage region error module determines if a storage region that contains at least a portion of the ECC chunk satisfies region retirement criteria. The storage region may include a first portion on a first solid-state storage die and a second portion on a second solid-state storage die. A retirement module retires the storage region, including the first portion and the second portion in parallel, in response to the storage region containing at least a portion of the ECC chunk and satisfying the region retirement criteria.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.