Garbage collection in a storage system at sub-virtual block granularity level
US11360691B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2020 |
| Grant date | Jun 14, 2022 |
| Priority date | — |
| Expiry date | Jun 10, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7205
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
At least one processing device is configured to select a virtual block corresponding to a physical block in a storage system, wherein the virtual block comprises a plurality of pages with one or more pages of the virtual block respectively pointing to one or more data portions in the physical block. The at least one processing device is also configured to identify a target physical block and one or more virtual blocks corresponding to the target physical block. The at least one processing device is further configured to move at least one data portion from the physical block to the target physical block. Still further, the at least one processing device is configured to redirect the at least one page of the virtual block corresponding to the at least one moved data portion to one of the one or more virtual blocks corresponding to the target physical block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.