RAID storage-device-assisted deferred Q data determination system
US10936420B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2019 |
| Grant date | Mar 2, 2021 |
| Priority date | — |
| Expiry date | Oct 17, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/28
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A RAID storage-device-assisted deferred Q data determination system includes a RAID primary data drive that retrieves second primary data via DMA with a host system, and XOR's it with its first primary data to produce first interim parity data that it DMA's to a RAID parity data drive. The RAID parity data drive XOR's its first parity data and the first interim parity data to produce second parity data. The RAID parity data drive also performs GF operations on the first interim parity data and its second interim parity data and XOR's the results to produce first interim Q data that it DMA's to a RAID Q data drive. The RAID Q data drive XOR's the first interim Q data and its second interim Q data to produce third interim Q data that it XOR's with its first Q data to produce second Q data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.