Managing dereferenced chunks in a deduplication system
US8775390B2 · kind B2 · utility
12Cited by
1References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 2012 |
| Grant date | Jul 8, 2014 |
| Priority date | — |
| Expiry date | May 22, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/23
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A chunk index has information on chunks in a storage space referenced in objects in the storage space. The chunk index includes a reference count for each chunk indicating a number of objects in which the chunk is referenced and a reference measurement representing a level of data object references to the chunk. One chunk is selected to remove from the storage space based on a criteria applied to the reference measurements of chunks having reference counts indicating that the chunks are not referenced in one object in the storage space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.