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Predictive disc drive failure methodology

  • US 6,982,842 B2
  • Filed: 01/30/2003
  • Issued: 01/03/2006
  • Est. Priority Date: 09/16/2002
  • Status: Expired due to Fees
First Claim
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1. A method of performing predictive failure analysis of a disc drive during operation of the disc drive, comprising:

  • a) maintaining a first primary error count corresponding to disc drive errors associated with a first attribute of the disc drive, the first primary error count potentially indicative of disc drive failure;

    b) maintaining a second primary error count corresponding to disc drive errors associated with a second attribute of the disc drive, the second primary error count potentially indicative of disc drive failure;

    c) triggering a first attribute failure when the first primary error count reaches a predetermined relationship to a first threshold value;

    d) triggering a second attribute failure when the second primary error count reaches a predetermined relationship to a second threshold value; and

    e) predicting imminent disc drive failure after both the first and second attribute failures are triggered.

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