Source classification for performing deduplication in a backup operation
US8255365B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2009 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | Jun 8, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1464
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system, method, and computer program product for backing up data from a backup source to a central repository using deduplication, where the data comprises source data segments is disclosed. A fingerprint cache comprising fingerprints of data segments stored in the central repository is received, where the data segments were previously backed up from the backup source. Source data fingerprints comprising fingerprints (e.g., hash values) of the source data segments are generated. The source data fingerprints are compared to the fingerprints in the fingerprint cache. The source data segments corresponding to fingerprints not in the fingerprint cache may not be currently stored in the central repository. After further queries to the central repository, one or more of the source data segments are sent to the central repository for storage responsive to comparison.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.