Updating raid stripe parity calculations
US10891192B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2019 |
| Grant date | Jan 12, 2021 |
| Priority date | — |
| Expiry date | Sep 17, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0688
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for incremental RAID stripe update parity calculations. The method includes: receiving, at a first set of solid state drives, a last portion of a redundant array of independent disks (RAID) stripe among multiple portions of the RAID stripe, wherein the RAID stripe includes multiple shards, and wherein each previous portion of the RAID stripe is written to the first set of solid state drives; calculating a current parity value based on the last portion of the RAID stripe and a previous parity value updated after receiving each previous portion of the RAID stripe; and responsive to receiving all portions of a shard of the RAID stripe, copying the shard of the RAID stripe from the first set of solid state drives to a second set of solid state drives.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.