Optmizing metadata management in data deduplication
US10768843B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2019 |
| Grant date | Sep 8, 2020 |
| Priority date | — |
| Expiry date | Feb 4, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/215
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Techniques for data processing may include: receiving a candidate block including a plurality of uniformly-sized sub-blocks, wherein a tag is stored at a first location in the candidate block; performing data deduplication processing of the candidate block, wherein the data deduplication processing excludes content stored from a first offset to a second offset corresponding to the first location; determining whether at least one sub-block of the candidate block has been deduplicated by the data deduplication processing; and responsive to determining that at least one sub-block of the candidate block has been deduplicated, storing the candidate block as a deduplicated data block having at least one sub-block matching an existing target sub-block, wherein a tag descriptor describing the tag is stored and associated with the candidate block, such as in block-level metadata of the candidate block. The tag descriptor may include tag content and tag location information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.