Apparatus and method for predicting failure of a disk drive
US6980381B2 · kind B2 · utility
68Cited by
19References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2001 |
| Grant date | Dec 27, 2005 |
| Priority date | — |
| Expiry date | Sep 8, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/3485
- WIPO fieldComputer 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.