Solid-state storage power failure protection using distributed metadata checkpointing
US10802727B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | May 21, 2018 |
| Grant date | Oct 13, 2020 |
| Priority date | — |
| Expiry date | Nov 10, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7211
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method of implementing distributed metadata checkpointing in a storage device. A storage device is disclosed that includes storage device that employs distributed metadata checkpointing, including: flash memory; and a controller that collects metadata checkpoints and includes: a checkpoint partitioner that partitions a metadata checkpoint into a set of segments; and a segment loader that stores each segment of the set of segments into a spare region of a corresponding different flash memory pages during a write operation of data to flash memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.