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System using a single host to receive and redirect all file access commands for shared data storage device from other hosts on a network

DC CAFC
  • US 7,457,880 B1
  • Filed: 09/27/2004
  • Issued: 11/25/2008
  • Est. Priority Date: 09/26/2003
  • Status: Active Grant
First Claim
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1. A networked system for providing access to user data while preserving the data integrity of the user data, comprising:

  • a data storage device comprising the user data;

    a plurality of hosts coupled at a device level to the data storage device by way of a digital network; and

    a resource lock providing exclusive access to the data storage device to one of the plurality of hosts at a time;

    wherein commands to the data storage device originating from any one of the plurality of hosts are directed to a first host, the first host redirecting all such commands to the data storage device.

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