Full die recovery in ZNS SSD
US11687263B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2021 |
| Grant date | Jun 27, 2023 |
| Priority date | — |
| Expiry date | Dec 7, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7208
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data storage device includes a memory device and a controller coupled to the memory device. The controller is configured to receive a request from a requester for a superblock, determine that one or more blocks of a die of the superblock are expected to fail, and either replace the one or more blocks of the die with another one or more blocks from a different die or add the another one or more blocks from the different die and disable the one or more blocks of the die, and provide the superblock to the requester. The superblock provided to the requester is erased prior to the providing and is the same size as an original superblock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.