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System and method for establishing bi-directional failover in a two node cluster

  • US 7,478,263 B1
  • Filed: 06/01/2004
  • Issued: 01/13/2009
  • Est. Priority Date: 06/01/2004
  • Status: Active Grant
First Claim
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1. A method for providing bi-directional failover for data replication services in a two node cluster, comprising:

  • detecting a failure of one of the nodes; and

    in response to detecting the failure, exiting a conventional quorum state and entering a high availability state, wherein in the high availability state a single node is designated as a stand alone node that is a full read/write replica for the data replication services of the cluster, thereby enabling management services reliant on updates for replicated data to function normally, and wherein the conventional quorum state requires a majority of the nodes to be healthy to have quorum and neither node is initially configured with an epsilon value.

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