Disk offset-distance awareness data placement for storage system data protection
US11650737B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2019 |
| Grant date | May 16, 2023 |
| Priority date | — |
| Expiry date | Feb 11, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0871
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer-implemented method comprises initializing a plurality of segment lists. Each segment list of the plurality of segment lists corresponds to a respective one of a plurality of disk drives. Each segment list divides storage space of the respective disk drive into a plurality of segments. The method further comprises, for each of the plurality of disk drives, identifying one or more candidate segments from the plurality of segments; calculating a respective segment distance variance for one or more combinations of identified candidate segments. Each combination of identified candidate segments includes one candidate segment for each of the plurality of disk drives. The method further comprises selecting a combination of the one or more combinations of identified candidate segments having the smallest respective segment distance variance; and storing data on the plurality of disk drives according to the selected combination of identified candidate segments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.