×

System and method for proxying data access commands in a storage system cluster

  • US 8,073,899 B2
  • Filed: 04/29/2005
  • Issued: 12/06/2011
  • Est. Priority Date: 04/29/2005
  • Status: Active Grant
First Claim
Patent Images

1. A method for proxying data access commands from a first storage system over a cluster interconnect to a second storage system in a storage system cluster, comprising:

  • receiving, from a client operatively connected to the cluster, a block-level data access command at the first storage system that is directed to a file on the second storage system, wherein the block-level data access command comprises a world wide port name (WWPN) and a logical unit number (lun) identifier;

    transforming at the first storage system the received block-level data access command to a file-level data access request by mapping the WWPN and lun identifier to a file handle associated with the file;

    forwarding the file-level data access request including the file handle from the first storage system to the second storage system over the cluster interconnect;

    processing the file-level data access request for the file at the second storage system;

    generating a file-level response at the second storage system in response to processing the file-level data access request; and

    returning the file-level response from the second storage system to the first storage system over the cluster interconnect.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×