Proxy backup of virtual disk image files on NAS devices
US8438349B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2009 |
| Grant date | May 7, 2013 |
| Priority date | — |
| Expiry date | Jun 30, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/84
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for backing up a virtual machine executing on a virtualization server computer are described. A snapshot of a virtual disk image file of the virtual machine may be created on a network-attached storage (NAS) device coupled to the virtualization server computer. The snapshot may be used to backup the virtual disk image file from the NAS device to a backup storage device without transferring the virtual disk image file through the virtualization server computer. Mapping information useable to access the plurality of files stored in the virtual disk image file on an individual basis may be created and stored together with the backup copy of the virtual disk image file on the backup storage device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.