Incremental RAID stripe update parity calculation
US10417092B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2017 |
| Grant date | Sep 17, 2019 |
| Priority date | — |
| Expiry date | Dec 22, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0688
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Incremental RAID stripe update parity calculation includes receiving a first portion of data of a RAID stripe for writing to a first memory location of a plurality of solid state drives. A first parity value is calculated for the first portion of data of the RAID stripe. A second portion of data of the RAID stripe is received for writing to a second memory location that is different from the first memory location A second parity value is calculated in dependence upon the second portion of the data of the RAID stripe and upon the first parity value Responsive to successfully writing the second portion of data of the RAID stripe, the first parity value is replaced with the second parity value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.