Dynamic reclamation of storage stripes
US11341010B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2020 |
| Grant date | May 24, 2022 |
| Priority date | — |
| Expiry date | Dec 3, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/1044
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Techniques for rebuilding a failed drive of a plurality of drives are provided. The techniques include: (a) determining a number of empty data stripes that have been allocated from the plurality of drives; (b) applying a set of decision criteria to the determined number to yield a decision, wherein applying the set of decision criteria yields a first decision at a first time and a differing second decision at a second time; (c) in response to the first decision at the first time, deallocating an empty data stripe that was allocated from the plurality of drives to yield a plurality of data extents on disparate drives of the plurality of drives and continuing to rebuild the failed drive onto at least one of the plurality of data extents; and (d) in response to the second decision at the second time, pausing rebuilding the failed drive until applying the set of decision criteria yields the first decision.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.