×

Disc drive failure prediction

  • US 7,304,816 B2
  • Filed: 06/15/2005
  • Issued: 12/04/2007
  • Est. Priority Date: 09/16/2002
  • Status: Expired due to Fees
First Claim
Patent Images

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;

    comparing the write fault count to a write fault count threshold;

    incrementing a write fault history count when the write fault count reaches the write fault count threshold;

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

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

View all claims
  • 5 Assignments
Timeline View
Assignment View
    ×
    ×