Data conflict resolution for solid-state memory devices
US7917803B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2008 |
| Grant date | Mar 29, 2011 |
| Priority date | — |
| Expiry date | Oct 2, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7209
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a particular embodiment, a controller is disclosed that is adapted to control read/write access to a storage media. The controller includes data corruption detection logic to reconstruct a logical block address (LBA) lookup table from metadata stored at the storage media upon restart and re-initialization after a power loss event. The controller further includes duplicate conflict resolution logic to identify a valid data block from multiple data blocks that refer to a single LBA. The duplicate conflict resolution logic counts a first number of valid physical pages and a second number of different sectors in each of the multiple data blocks. The duplicate conflict resolution logic selects the valid data block from the multiple data blocks based on at least one of the first and second numbers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.