Saving multiple snapshots without duplicating common blocks to protect the entire contents of a volume
US8190836B1 · kind B1 · utility
32Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2008 |
| Grant date | May 29, 2012 |
| Priority date | — |
| Expiry date | Nov 3, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1453
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An image-based backup backs up one or more snapshots of a volume without duplicating common data blocks. A backup engine receives a request to generate a backup image of a volume. In response to the request, the backup engine generates the backup image including data blocks and metadata describing attributes of the data blocks. The data blocks and the metadata arranged in the backup image in a same order as they were retrieved without imposing any additional ordering constraints on the data blocks and the metadata.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.