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Distributed fault isolation and recovery system and method

  • US 4,570,261 A
  • Filed: 12/09/1983
  • Issued: 02/11/1986
  • Est. Priority Date: 12/09/1983
  • Status: Expired due to Term
First Claim
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1. In a distributed processing system of the type including a plurality of modules, a subsystem for isolating faults within said system and recovering said system to optimized operation, said subsystem comprising:

  • at least some of some modules being active fault recovery modules including fault detecting means for initializing a fault check routine and sensing faults within said system including faults within a respective module;

    voting means associated with each of said active module for placing a vote during each said fault check routine in response to a detected fault;

    collective vote determining means for recording the votes of said active modules after each said fault check routine;

    means for cooperatively intercoupling each of said voting means and said collective vote determining means; and

    recovery sequence initializing means associated with each active module for initializing a fault isolation and recovery sequence in response to a predetermined number of consecutive collective votes exceeding a predetermined value.

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