Load sharing cluster file systems
US8180747B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 11, 2008 |
| Grant date | May 15, 2012 |
| Priority date | — |
| Expiry date | Mar 7, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/1827
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Load sharing clusters in which each node is responsible for one or more non-overlapping subset(s) of the cluster namespace and will process only those requests that access file or directory objects in the partitioned namespace that the node controls while redirecting requests designated for other nodes. A non-overlapping subset may be migrated from a source node to a destination node, for example, for load sharing or hotspot mitigation. Migration typically includes maintaining a file virtualization link from the destination node to the source node to permit forwarding of requests by the destination node to the source node during migration of metadata and then migration of data from the source node. After migration is complete, the file virtualization link is broken and the destination node services requests for the non-overlapping subset from the migrated metadata and data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.