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Inferring host storage topology

  • US 8,402,177 B2
  • Filed: 06/29/2011
  • Issued: 03/19/2013
  • Est. Priority Date: 06/29/2011
  • Status: Active Grant
First Claim
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1. A processor implemented method for inferring storage topology of a host, the method comprising utilizing a processor resource to:

  • discover, from a security group that contains an initiator port of the host, all initiator ports of the host and all target ports of a storage device;

    identify, from the discovered initiator and target ports, a port through which access to the storage device is blocked;

    detect, from the discovered ports not identified as blocked, available paths between the host and a volume exposed to the host by the storage device;

    determine the number of available paths between the host and that volume; and

    increase the number of paths available between the host and the volume when the determined number of available paths falls below a threshold.

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