Controller fault recovery system for a distributed file system
US6725392B1 · kind B1 · utility
515Cited by
50References
22Claims
0Family size
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Key dates
| Filing date | Oct 18, 2000 |
| Grant date | Apr 20, 2004 |
| Priority date | — |
| Expiry date | Mar 30, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2211/1028
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A controller fault recovery system recovers from faults that cause unscheduled stops for a distributed file system operating on an array storage system having multiple controllers. A proxy arrangement protects data integrity in the event of an unscheduled stop on just one controller in the array storage system. An atomic data/parity update arrangement protects data integrity in the event of an unscheduled stop of more than one controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.