Heuristic approach for faster consistency check in a redundant storage system
US8904244B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Oct 17, 2012 |
| Grant date | Dec 2, 2014 |
| Priority date | — |
| Expiry date | Apr 18, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2211/1071
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for reducing an amount of time required for performing consistency checking in a redundant storage system includes steps of: providing an information repository associated with each of a primary drive and at least one redundant drive; storing, in the information repository, information relating to input/output failures on the primary drive and redundant drive; determining a likelihood that one or more regions of the primary drive and/or redundant drive contains inconsistent data as a function of the information stored in the information repository; and performing consistency checking on the one or more regions of the primary drive and the redundant drive determined to have at least a prescribed likelihood of containing inconsistent data to thereby reduce the amount of time required for performing consistency checking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.