Diagnosing hardware faults in a data storage system
US8407527B1 · kind B1 · utility
6Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2009 |
| Grant date | Mar 26, 2013 |
| Priority date | — |
| Expiry date | Oct 4, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/0727
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Hardware faults in data storage systems are diagnosed. User I/O errors are received. Disk drive port error counters, primary port error counters, and expansion port error counters are read. A user I/O error threshold is modified based on the error counter readings. Depending on the type of errors counted, the user I/O error threshold may be increased or decreased. Once a first quantity of user I/O errors exceeds the modified user I/O error threshold, a faulty component is identified.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.