System and method for synchronizing redundant data in a storage array
US7814361B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2007 |
| Grant date | Oct 12, 2010 |
| Priority date | — |
| Expiry date | Apr 28, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2082
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for synchronizing redundant data in a storage array are disclosed. In accordance with a method, a pointer indicating the amount of data synchronized between a first storage resource to a second storage resource may be maintained and a power event may be detected. In response to the detection of the power event, an attempt may be made to flush a write cache associated with the second storage resource to transfer data from the write cache to a non-volatile storage area of the second storage resource. A determination may be made whether the attempt to flush the write cache is successful. In response to determining that the attempt to flush the write cache is successful, a flag may be set to indicate that the pointer accurately indicates the amount of data mirrored from the first storage resource to the non-volatile storage area of the second storage resource.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.