Detecting and correcting node misconfiguration of information about the location of shared storage resources
US7437426B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2005 |
| Grant date | Oct 14, 2008 |
| Priority date | — |
| Expiry date | Apr 4, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/52
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A group of shared-storage resources are being maintained as replicas by the nodes of a cluster. Each node in the cluster maintains a set of pointers to the members of the group. As membership changes, the set of pointers should be changed accordingly. For various, reasons, the set of pointers of a node are not changed and may point to shared-storage resources that are no longer members of the group and/or not point to shared-storage resources that are members of the group. By recording a history of membership changes in the shared-storage resources, and comparing the recording to what a node thinks the shared resources should be, an incorrect set of pointers can be detected and corrective active undertaken.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.