Storage system with incremental multi-dimensional RAID
US8341342B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2012 |
| Grant date | Dec 25, 2012 |
| Priority date | — |
| Expiry date | Mar 23, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2211/1057
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for storing data including receiving a request to write data and in response the request, selecting a RAID grid location in a RAID grid to write the data. The method further includes writing the data to memory, updating a data structure to indicate that the RAID grid location is filled, identifying a parity value in the RAID grid to update, where the parity value is associated with a second RAID grid location in the RAID grid, updating the parity value using the data and the parity value to obtain an updated parity value and storing the updated parity value in the memory. Prior to the first data grid being filled determining a physical address in persistent storage corresponding to the RAID grid location and writing the data to the first physical address.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.