Data storage device dynamically relocating data sectors based on map-out value
US11531582B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2020 |
| Grant date | Dec 20, 2022 |
| Priority date | — |
| Expiry date | May 27, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2020/1896
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data storage device is disclosed comprising a non-volatile storage medium (NVSM) having a plurality of data sectors and a plurality of reserve sectors. A map-out value is generated for each of a first plurality of the data sectors based on a read latency of each of the first plurality of data sectors, and when the map-out value of a first data sector in the first plurality of data sectors exceeds a threshold, a first logical block address (LBA) is mapped from the first data sector to a first reserve sector. When the map-out value of a second data sector in the first plurality of data sectors exceeds the map-out value of the first data sector, the first LBA is mapped from the first reserve sector back to the first data sector, and a second LBA is mapped from the second data sector to the first reserve sector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.