Volume configuration data administration
US7584224B2 · kind B2 · utility
3Cited by
98References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2004 |
| Grant date | Sep 1, 2009 |
| Priority date | — |
| Expiry date | Apr 13, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99955
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Volume configuration data management systems and methods are described. A logical volume provider maintains an epoch number on each of the extents comprising a volume. Upon each change in the configuration of the volume, the epoch number on each of the currently online extents is updated. When a volume is discovered and a request is made to bring the volume online, the logical volume provider can compare the epoch numbers on the extents to determine if the volume data is consistent across each of the extents, or if an extent contains stale data due to a transitory outage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.