System and method for storage takeover
US7613947B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2006 |
| Grant date | Nov 3, 2009 |
| Priority date | — |
| Expiry date | Mar 13, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2046
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A takeover system and method for high availability in the face of component failures for a multiple-node storage system cluster is provided. When a takeover is triggered either through a loss of cluster heartbeat, or through a user-initiated command, the system of the present invention is configured such that one or more surviving nodes asserts ownership on one or more of the failed node's disks such that all of the disks become locally owned by one of the surviving nodes. An assimilation of the disks into one or more aggregates is performed, and any duplicated file system identification numbers are corrected to avoid errors. As the disks thus appear to be locally owned by the surviving nodes, one or more newly assimilated aggregates are thus exposed to any N-module that interfaces with the surviving nodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.