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Fault handling process for enabling recovery, diagnosis, and self-testing of computer systems

  • US 6,691,250 B1
  • Filed: 06/29/2000
  • Issued: 02/10/2004
  • Est. Priority Date: 06/29/2000
  • Status: Active Grant
First Claim
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1. A method of handling a fault in a computer system comprising:

  • recognizing that an initial fault has occurred by operating in a first sequence in the computer system;

    invoking an alternative mode of operation for the computer system upon recognizing the initial fault;

    using the alternative mode to track performance of the system after the initial fault thereby gathering post-fault state information for fault diagnosis and system recovery; and

    preventing a subsequent fault from reoccurring as a result of recovery from the initial fault by using a dynamic state of the computer system to cause the computer system to operate in a second sequence such that the initial fault and the subsequent fault are potentially avoided.

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