Method for creating consistent backup image of a storage volume without requiring a snapshot
US8161254B2 · kind B2 · utility
4Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 6, 2009 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Aug 29, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1466
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Method for creating a consistent image, on a destination volume, of a target volume that remains in production use while the image is being created, without requiring the use of a snapshot, by copying the data on the target volume to the destination volume, maintaining changes to data blocks that arise on the target volume during copy operations, copying changed blocks to the destination volume, and repeating changed block updates as necessary until there are no further changed blocks on the target volume (all as more fully described in the specification).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.