Protection of former primary volumes in a synchronous replication relationship
US9052833B2 · kind B2 · utility
13Cited by
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20Claims
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Key dates
| Filing date | Mar 11, 2013 |
| Grant date | Jun 9, 2015 |
| Priority date | — |
| Expiry date | Dec 7, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/067
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An aspect includes protecting a former primary volume in a synchronous replication relationship. A swap between a primary volume at a first site and a secondary volume at a second site is initiated such that the secondary volume becomes a new primary volume and the primary volume becomes the former primary volume. A fenced state is set as active for the former primary volume. The former primary volume is configured as a fenced volume based on the fenced state being active. Read and write access to the fenced volume is blocked while the fenced state is active.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.