Proactive fault monitoring of disk drives through phase-sensitive surveillance
US7330325B2 · kind B2 · utility
7Cited by
10References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2006 |
| Grant date | Feb 12, 2008 |
| Priority date | — |
| Expiry date | Aug 4, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B19/048
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
One embodiment of the present invention provides a system that proactively monitors a disk drive to detect an impending disk drive failure. During operation, the system obtains a time-varying electrical signal which is generated by the spindle rotation during operation of the disk drive. Next, the system extracts one or more inferential parameters associated with the spindle rotation from the time-varying electrical signal using a phase-sensitive detection. The system then performs proactive fault detection on the inferential parameters to detect an impending failure of the disk drive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.