Raid storage-device-assisted data update system
US11422740B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2019 |
| Grant date | Aug 23, 2022 |
| Priority date | — |
| Expiry date | Nov 13, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/28
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A RAID storage-device-assisted data update system includes a RAID storage controller coupled to first RAID storage devices each including respective first RAID storage subsystems. Each first RAID storage devices receives a command from the RAID storage controller that identifies a second RAID buffer subsystem as a target memory location and, in response, retrieves respective first RAID storage device data from its respective first RAID storage subsystem and performs DMA operations to provide that first RAID storage device data on the second RAID buffer subsystem. A second RAID storage device that includes the second RAID buffer subsystem and a second RAID storage subsystem receives a command from the RAID storage controller and, in response, performs an XOR operation using the first RAID storage device data in the second RAID buffer subsystem to produce update data that it stores in its second RAID storage subsystem.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.