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Disc drive failure prediction

  • US 20050246591A1
  • Filed: 06/15/2005
  • Published: 11/03/2005
  • Est. Priority Date: 09/16/2002
  • Status: Active Grant
First Claim
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1. A method of predicting failure of a disc drive during operation of the disc drive comprising steps of:

  • maintaining a write fault count corresponding to write faults encountered during write operations to a disc;

    obtaining a frequency domain representation of a position error signal (PES) of a head of the disc drive;

    predicting failure of the disc drive based on the write fault count and the frequency domain representation of the PES.

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