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Caching of SCSI I/O referrals

  • US 20100251267A1
  • Filed: 03/24/2009
  • Published: 09/30/2010
  • Est. Priority Date: 03/24/2009
  • Status: Abandoned Application
First Claim
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1. A method for communication between an initiator system and a block storage cluster, comprising:

  • receiving a first referral response from a first storage system included in a plurality of storage systems of the block storage cluster, the first referral response providing information for directing the initiator system to a second storage system included in the plurality of storage systems of the block storage cluster;

    obtaining a starting logical block address (LBA) and a corresponding port identifier based on the first referral response;

    storing the starting LBA and the corresponding port identifier in a referral cache accessible to the initiator system; and

    directing an input/output (I/O) request from the initiator system to the block storage cluster based on the starting LBA and the corresponding port identifier stored in the referral cache.

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