Detection of silent data corruption in a storage system
US6629273B1 · kind B1 · utility
40Cited by
15References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 24, 2000 |
| Grant date | Sep 30, 2003 |
| Priority date | — |
| Expiry date | Jan 24, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2211/1088
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage system is described that includes a controller and a disk array. The controller operates to coordinate data transfers between the disk array and an external host computer in response to I/O commands received from the host computer. The controller further operates to execute a background program each time certain conditions are met. Under the direction of the background program, the controller operates to identify corrupt but readable data blocks based upon the value of the data block and the value of an error code stored for the data block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.