Efficient mechanisms for detecting phantom write errors
US7020805B2 · kind B2 · utility
10Cited by
25References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2002 |
| Grant date | Mar 28, 2006 |
| Priority date | — |
| Expiry date | Feb 14, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/1816
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for detecting a phantom write error in a data storage system is described. In one embodiment, upon receiving a read command pertaining to a data block stored on a storage medium, two version identifiers associated with the data block are compared. A first version identifier is stored within the data block and a second version identifier is stored outside of the data block. If the version identifiers do not match, the possible occurrence of a phantom write error is detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.