Virtual machine backup with efficient checkpoint handling based on a consistent state of the virtual machine of history data and a backup type of a current consistent state of the virtual machine
US10496492B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2018 |
| Grant date | Dec 3, 2019 |
| Priority date | — |
| Expiry date | Feb 2, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2009/45587
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
According to one embodiment, a system in response to a request to back up a virtual machine (VM) to a backup storage system, retrieves history data from the backup storage system. The history data has been previously backed up in the backup storage system during a previous backup operation of the VM. The history data includes a change tracking identifier (ID) associated with a consistent state of a VM disk attached to the VM at the point-in-time of the previous backup operation. The system validates the history data against a current configuration of the VM. The current configuration includes information of one or more current consistent states of the VM disk. The system determines a backup type for each of the current consistent states based on the validated history data. The system backs up each of the current consistent states based on the backup type.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.