Biasing for wear leveling in storage systems
US9298608B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2013 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | May 26, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7211
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The various implementations described herein include systems, methods and/or devices used to enable biasing for wear leveling in storage systems. In one aspect, the method includes (1) determining, for each erase unit of a plurality of erase units in the storage medium, an age metric, (2) determining a representative age metric of the plurality of erase units, (3) for each respective erase unit of the plurality of erase units, biasing a respective garbage collection control metric for the respective erase unit in accordance with the age metric of the respective erase unit in relation to the representative age metric of the plurality of erase units to generate an adjusted garbage collection control metric for the respective erase unit, and (4) performing garbage collection for the storage medium in accordance with the adjusted garbage collection control metrics of the plurality of erase units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.