System and method for raid management, reallocation, and restriping
US8230193B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2011 |
| Grant date | Jul 24, 2012 |
| Priority date | — |
| Expiry date | Feb 7, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2211/1004
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to systems and methods for RAID Restriping. One method includes selecting an initial RAID device for migration based on at least one score, creating an alternate RAID device, moving data from the initial RAID device to the alternate RAID device, and removing the initial RAID device. The method may be performed automatically by the system or manually. The method may be performed periodically, continuously, after every RAID device migration, upon addition of disk drives, and/or before removal of disk drives, etc. One system includes a RAID subsystem and a disk manager configured to automatically calculate a score for each RAID device, select a RAID device based on the relative scores of the RAID devices, create an alternate RAID device, move data from the selected RAID device to the alternate RAID device, and remove the selected RAID device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.