Generic fault tolerant platform

  • US 5,978,933 A
  • Filed: 01/11/1996
  • Issued: 11/02/1999
  • Est. Priority Date: 01/11/1996
  • Status: Expired due to Term
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First Claim
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1. A method for preventing split brain syndrome in a fault tolerant platform having at least one process in an active state of execution and at least one process in a standby state, switchover capabilities for promoting a process in the standby state to an active state, and commonly available resources dedicated to the processes in the active and standby states, said method comprising the steps of:

  • limiting simultaneous access to the commonly available resources to a maximum number of processes in the active state;

    giving priority of access to the commonly available resources to processes last promoted to the active state; and

    terminating an active state of a process that is in an active state of healthy execution when said process in an active state of healthy execution is not allowed access to the commonly available resources.

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