Sub-block data deduplication
US10990310B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2019 |
| Grant date | Apr 27, 2021 |
| Priority date | — |
| Expiry date | Oct 1, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/544
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Techniques for data processing may include: determining one or more sub-blocks of a target block that match one or more sub-blocks of a candidate block; creating a shared sub-block mapping (SSM) structure having a plurality of entries, wherein each of the plurality of entries corresponds to a different one of the sub-blocks in the candidate block and wherein a value stored in said each entry, corresponding to one of the sub-blocks of the candidate block, identifies a sub-block of the target block matching said one sub-block of the candidate block; and storing the candidate block as a deduplicated block sharing at least one sub-block with the target block. The SSM structure may be stored as a metadata structure of the candidate block to identify deduplicated sub-blocks of the candidate block and to identify sub-blocks of the target block providing content for the deduplicated sub-blocks of the candidate block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.