Incremental virtual machine backup supporting migration
US8832029B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2011 |
| Grant date | Sep 9, 2014 |
| Priority date | — |
| Expiry date | Apr 3, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/84
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A record of changes to virtual machine data of a virtual machine and a record of changes to snapshots of the virtual machine that have been received since the virtual machine was last backed up are maintained. In response to it being time to perform an incremental backup of the virtual machine, a portion of the virtual machine data is backed up based on the record of changes to the virtual machine data, and a portion of the snapshots is backed up based on the record of changes to the snapshots. In response to it being time to migrate the virtual machine to a second host device, the virtual machine data, the record of changes to the virtual machine data, the record of changes to the snapshots, and one or more of the snapshots are migrated to the second host device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.