Memory first live snapshot
US11604708B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 11, 2017 |
| Grant date | Mar 14, 2023 |
| Priority date | — |
| Expiry date | Aug 3, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/84
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The subject matter of this specification can be implemented in, among other things, a method including creating a new disk file at a reference point-in-time, wherein an original disk file is a backing file of the new disk file, copying the original disk file to a disk snapshot file, in response to the original disk file being copied to the disk snapshot file, merging the original disk file and the new disk file to form a merged file, wherein a virtual machine is to continue to perform disk operations using the merged file, and determining whether the merged file is synchronized with the original disk file and the new disk file by determining whether entries of a bitmap for the merged file match corresponding entries of a bitmap for the new disk file.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.