Automated migration to a new target volume via merged bitmaps to maintain consistency
US8793456B2 · kind B2 · utility
6Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2013 |
| Grant date | Jul 29, 2014 |
| Priority date | — |
| Expiry date | Oct 31, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2074
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Aspects of the present invention relate to data migration and/or disaster recovery. One embodiment enables merging of bitmaps to allow for automation of the process of switching to a different target volume on the same storage subsystem without major interruption of data recovery capability and limited interruption of host I/O to the source volumes during the migration. In one approach, the migration of data onto a new target volume within the same storage subsystem as the original target volume is automated, without requiring the user to manually create or remove any new copy relationships.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.