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Managing a fault tolerant system

  • US 7,299,385 B2
  • Filed: 07/28/2004
  • Issued: 11/20/2007
  • Est. Priority Date: 07/28/2004
  • Status: Active Grant
First Claim
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1. A method of monitoring a fault tolerant system, comprising:

  • maintaining an abstract model of the fault tolerant system;

    monitoring operation of the fault tolerant system;

    applying fault events received from the fault tolerant system to the abstract model; and

    reporting one or more changes in the abstract model to a component in the fault tolerant system, wherein maintaining an abstract model of the fault tolerant system comprises;

    receiving a configuration event indicating the removal of at least one component to the fault tolerant system; and

    in response, removing at least one corresponding component from the abstract model; and

    wherein removing at least one corresponding component from the abstract model comprises;

    dissolving the logical association between the at least one corresponding component and one or more components dependent on the at least one corresponding component; and

    recalculating a state of the one or more components dependent on the at least one corresponding component.

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