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Method and system for establishing a quorum for a geographically distributed cluster of computers

  • US 20030023680A1
  • Filed: 07/05/2001
  • Published: 01/30/2003
  • Est. Priority Date: 07/05/2001
  • Status: Active Grant
First Claim
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1. A method that facilitates establishing a quorum for a cluster within a plurality of computers that are geographically distributed, the method comprising:

  • detecting a change in membership of the cluster at a computer within the plurality of computers; and

    upon detecting the change in membership, forming a potential new cluster by attempting to communicate with all other computers within the plurality of computers, accumulating votes for each computer successfully contacted, attempting to gain control of a quorum server located at a site separate from all computers within the plurality of computers, if successful, accumulating the quorum server'"'"'s votes, and if a total of accumulated votes includes a majority of available votes, forming a new cluster from the potential new cluster.

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