Apparatus and method for predicting failure of a disk drive
US6249887A · kind A · utility
44Cited by
19References
51Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1998 |
| Grant date | Jun 19, 2001 |
| Priority date | — |
| Expiry date | Sep 21, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/008
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for predicting failure of a disk is provided. A test string of performance sensitive reads is built and calibrated. That is, the positioning time and spindle speed for each performance sensitive read is logged. The test string is then applied to a disk and the positioning time and spindle speed for each performance sensitive read, as applied, is measured. The calibrated positioning times and spindle speeds are then compared with the measured positioning times and spindle speeds. The comparison result is used as a reliable predictor for disk failure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.