RAID proxy storage-device-assisted data update system
US11093329B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2020 |
| Grant date | Aug 17, 2021 |
| Priority date | — |
| Expiry date | Apr 24, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0689
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A RAID proxy storage-device-assisted data update system includes a RAID parity data storage device and a first RAID primary data storage device without storage-device-assisted data update functionality, and a second RAID primary data storage device with storage-device-assisted data update functionality. The second RAID primary data storage device receives a command that identifies updated primary data for the first RAID primary data storage device and, in response, retrieves the updated primary data, current primary data from the first RAID primary data storage device, and current parity data from the RAID primary parity data storage device. The second RAID primary data storage device performs an XOR operation using the updated primary data, the current primary data, and the current parity data to generate updated parity data, transmits the updated primary data to the first RAID primary data storage device, and transmits the updated parity data to the RAID parity data storage device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.