Deduplicating full and partial block matches
US11144519B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2019 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | Jan 14, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/2255
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A technique for performing deduplication traverses a deduplication database and assigns digest values in the database to buckets, where each bucket covers a respective range of digest values. To deduplicate a particular candidate block, the technique generates a digest from the candidate block and searches for the computed digest in a subset of the buckets, where the subset is selected based on the computed digest. If a target block providing an exact match or a suitably close partial match is found in the subset of buckets, the technique effects storage of the candidate block at least in part by providing a reference to the target block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.