Marking local regions and providing a snapshot thereof for asynchronous mirroring
US9146685B2 · kind B2 · utility
7Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2013 |
| Grant date | Sep 29, 2015 |
| Priority date | — |
| Expiry date | Jan 5, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/84
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods, apparatus and computer program products implement embodiments of the present invention that include conveying first data from local regions of a local volume of a local storage system to a remote storage system having a remote volume with remote regions in a one-to-one correspondence with the local regions. While conveying the first data, a request is received to update a given local region, and the given local region is marked. Subsequent to conveying the first data, a local snapshot referencing the local regions is created, and second data is conveyed from the marked local region to the remote storage system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.