Method for maintaining multiple fingerprint tables in a deduplicating storage system
US8589640B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2011 |
| Grant date | Nov 19, 2013 |
| Priority date | — |
| Expiry date | Jul 26, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/9017
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for managing multiple fingerprint tables in a deduplicating storage system. A computer system includes a storage medium, a first fingerprint table comprising a first plurality of entries, and a second fingerprint table comprising a second plurality of entries. Each of the first plurality of entries and the second plurality of entries are configured to store fingerprint related data corresponding to data stored in the storage medium. A storage controller is configured to select the first fingerprint table for storage of entries corresponding to data stored in the data storage medium that has been deemed more likely to be successfully deduplicated than other data stored in the data storage medium; and select the second fingerprint table for storage of entries corresponding to data stored in the data storage medium that has been deemed less likely to be successfully deduplicated than other data stored in the storage medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.