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AUTOMATED TAPE DRIVE SHARING IN A HETEROGENEOUS SERVER AND APPLICATION ENVIRONMENT

  • US 20100250698A1
  • Filed: 03/30/2009
  • Published: 09/30/2010
  • Est. Priority Date: 03/30/2009
  • Status: Active Grant
First Claim
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1. A computer-implemented method of automatically sharing a tape drive in a heterogeneous computing environment, said method comprising executing program code by a processor of a first computer system, said program code stored in a computer-readable storage medium, wherein said executing program code includes:

  • said first computer system receiving a first message that includes an identifier of a tape drive shared among a plurality of computer systems in said heterogeneous computing environment, an identifier of a source port of a second computer system, and an indication of a first change in a reservation status of said tape drive, wherein said first computer system and said second computer system are included in said plurality of computer systems;

    said first computer system determining said tape drive is connected to said first computer system based on said identifier of said tape drive;

    said first computer system determining said identifier of said source port does not identify any host bus adapter installed in said first computer system;

    said first computer system determining said indication of said first change indicates a first command from said second computer system that reserves said tape drive for said second computer system; and

    responsive to said determining said indication of said first change indicates said first command, said first computer system setting said tape drive offline in a first application executing in said first computer system.

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