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Method and apparatus for managing redundant computer-based systems for fault tolerant computing

  • US 6,178,522 B1
  • Filed: 08/25/1998
  • Issued: 01/23/2001
  • Est. Priority Date: 06/02/1998
  • Status: Expired due to Term
First Claim
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1. A method for managing redundancy computer based systems having multiple hardware computing nodes comprising the steps of:

  • providing a corresponding redundancy management system (RMS) to each computing node;

    establishing a communication link between each RMS;

    implementing a fault tolerant executive (FTE) module in each RMS for managing faults and a plurality of system functions;

    defining each computing node as a fault containment region;

    detecting faults/errors in data generated in a computing node, said detecting comprising the step of voting on data generated by each node to determine whether data generated by one node is different from a voted majority; and

    isolating a detected fault within the fault containment region to prevent propagation into another computing node, said isolating comprising using the step of voting on data as an output to mask a fault when data generated by a particular node is different from the voted majority.

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