Mirror vote synchronization
US9361194B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2014 |
| Grant date | Jun 7, 2016 |
| Priority date | — |
| Expiry date | Oct 23, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2082
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
One or more techniques and/or systems are provided for mirror vote synchronization. For example, a first storage device is located at a first storage site, and a second storage device is located at a second storage site. The second storage device is configured according to a data mirroring configuration where data from the first storage device is mirrored to the second storage device. Mirror vote metadata is generated based upon an up-to-date state of the data mirroring configuration. The mirror vote metadata indicates whether the first storage device and/or the second storage device are up-to-date or not. The mirror vote metadata may be replicated between the first storage site and the second storage site. If the first storage site fails, then the second storage site may provide switchover operation using the second storage device based upon the mirror vote metadata.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.