Incremental and differential backups of virtual machine files
US8099391B1 · kind B1 · utility
163Cited by
7References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 17, 2009 |
| Grant date | Jan 17, 2012 |
| Priority date | — |
| Expiry date | Mar 18, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/815
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Various embodiments of a system and method for backing up files used by a virtual machine are described herein. The files may be stored within a virtual disk image file. A full backup of the virtual disk image file may first be created. After creating the full backup, one or more incremental or differential backups of the virtual disk image file may be created. In some embodiments, fingerprints of the sectors of the virtual disk image file may be stored and used to identify which sectors should be included in the incremental or differential backups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.