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Storage system and communications path control method for storage system

  • US 20060075156A1
  • Filed: 11/23/2004
  • Published: 04/06/2006
  • Est. Priority Date: 10/06/2004
  • Status: Active Grant
First Claim
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1. A storage system comprising a plurality of host devices, and a storage device connectable respectively to these host devices by means of a plurality of communications paths;

  • comprising;

    a communications status monitoring section for respectively monitoring the communications statuses between each of said host devices and said storage device;

    a failure detecting section for detecting whether or not a prescribed minor failure has occurred, on the basis of at least said respective communications statuses detected by said communications status monitoring section;

    a switching instruction section for outputting a switching request signal for requesting switching of the communications path, on the basis of the state of occurrence of said prescribed minor failure detected by said failure detecting section; and

    a path control section for selecting the communications path to be used, on the basis of said switching request signal from said switching instruction section.

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