Firmware-based SSD block failure prediction and avoidance scheme
US11567670B2 · kind B2 · utility
0Cited by
19References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2019 |
| Grant date | Jan 31, 2023 |
| Priority date | — |
| Expiry date | Dec 2, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/0787
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A Solid State Drive (SSD) is disclosed. The SSD may comprise flash storage for data, the flash storage organized into a plurality of blocks. A controller may manage reading data from and writing data to the flash storage. Metadata storage may store device-based log data for errors in the SSD. Identification firmware may identify a block responsive to the device-based log data. In some embodiments of the inventive concept, verification firmware may determine whether the suspect block is predicted to fail responsive to both precise block-based data and the device-based log data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.