Deduplicating data at sub-block granularity
US10963436B2 · kind B2 · utility
1Cited by
24References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2018 |
| Grant date | Mar 30, 2021 |
| Priority date | — |
| Expiry date | Oct 31, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/907
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A technique for performing data deduplication operates at sub-block granularity by searching a deduplication database for a match between a candidate sub-block of a candidate block and a target sub-block of a previously-stored target block. When a match is found, the technique identifies a duplicate range shared between the candidate block and the target block and effects persistent storage of the duplicate range by configuring mapping metadata of the candidate block so that it points to the duplicate range in the target block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.