Indexing architecture for deduplicated cache system of a storage system
US8935446B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2013 |
| Grant date | Jan 13, 2015 |
| Priority date | — |
| Expiry date | Sep 26, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0871
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer-implemented method for indexing content stored in a cache memory device is disclosed. The method starts with in response to receiving a first request for caching a first file extent associated with a first file in a cache memory device, generating a first fingerprint based on content of the first file extent. Then the method continues with searching in a fingerprint index based on the first fingerprint to determine whether the first file extent has been stored in the cache memory. In response to determining that a fingerprint entry matching the first fingerprint is found, the method then continues with associating a first identifier identifying the first file extent and the first file with a storage location of the cache memory device obtained from the matching fingerprint entry, without storing the first file extent in the cache memory device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.