Managing snapshots in cache-based storage systems
US8943282B1 · kind B1 · utility
69Cited by
2References
16Claims
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Key dates
| Filing date | Mar 29, 2012 |
| Grant date | Jan 27, 2015 |
| Priority date | — |
| Expiry date | Mar 22, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/128
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method is used in managing snapshot in cache-based storage systems. A request to create a snapshot of a data object is received. A portion of the data object is cached in a global cache. The data object is associated with a mapping object. The mapping object manages access to the portion of the data object. A snapshot of the data object is created. A snapshot mapping object is associated with the snapshot of the data object. The snapshot mapping object includes a link to the mapping object. The snapshot mapping object is a version of the mapping object and shares the portion of the data object cached in the global cache.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.