Online recovery of a file system experiencing failure of redundant logical storage storing a single point of failure
US8904229B1 · kind B1 · utility
15Cited by
16References
21Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 29, 2012 |
| Grant date | Dec 2, 2014 |
| Priority date | — |
| Expiry date | Feb 19, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2211/1009
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage processor includes storage for redundantly storing a log file of a journaling file system on a separate logical device from a primary copy of the log file and further provides for recovery of the file system upon failure of both the primary storage and the redundant storage storing the log file of the journaling file system by storing dirtied metadata objects in the cache of the storage processor to a vault area and then applying the stored dirtied metadata objects against the underlying persistent storage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.