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Method to discover multiple paths to disk devices cluster wide

  • US 9,015,371 B1
  • Filed: 03/01/2012
  • Issued: 04/21/2015
  • Est. Priority Date: 03/01/2012
  • Status: Active Grant
First Claim
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1. A method comprising:

  • discovering a plurality of paths from a first host computer to a storage device,whereinthe plurality of paths comprise at least one local path from the first host computer to the storage device,the plurality of paths comprise at least one network path from the first host computer to the storage device, andthe first host computer is one a plurality of host computers in a cluster;

    generating a representation of the plurality of paths from the first host computer to the storage device, whereinthe discovering and the generating are performed by the first host computer,the generating is performed by the first host computer upon joining the cluster, andthe representation comprises information regarding a connectivity status for each of the plurality of paths; and

    after the generating, updating at least a portion of the information in the representation, based on one or more changes to the connectivity status for at least one of the plurality of paths, wherein the updating is performed by the first host computer.

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