Method and apparatus for detecting the onset of hard disk...

Details Method and apparatus for detecting the onset of hard disk... Method and apparatus for detecting the onset of hard disk...

2005-08-16

2009-02-03

Maskulinski, Michael C (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

Reexamination Certificate

active

07487401

ABSTRACT:
A system that detects the onset of hard disk drive failure. During operation, the system measures vibrations from the hard disk drive to produce one or more vibration signals. Next, the system generates a vibration signature for the hard disk drive from the measured vibration signals. The system then determines if the vibration signature indicates the onset of hard disk failure by comparing the vibration signature with a reference vibration signature for the hard disk drive. If so, the system generates a warning or takes a remedial action.

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Randal et al., “The Relationship between Spectral Correlation and Envelope Analysis in the Diagnostics of Bearing Faults and Other Cyclostationary Mchine Signals”, Mechanical Systems and Signal Processing, 2001, pp. 945-962.
“Vibration Monitoring of Computre Hard Disk Drives”, Mechanical Systems and Signal Processing 20, 2006, www.sciencedirect.com.
“Transient and Steady State Dynamic Vibration Measurements of HDD”, by Ki Myung Lee et al., IEEE, 2002.

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