Patents by Inventor Wolfgang Muelller-Friedt

Wolfgang Muelller-Friedt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Automated tape drive sharing in a heterogeneous server and application environment
    Patent number: 8433772
    Abstract: An approach for automatically sharing a tape drive in a heterogeneous computing environment that includes a first computer and second computer is presented. The first computer receives a message that includes a shared tape drive identifier, a source port identifier of the second computer, and a reservation status change for the tape drive. Based on the tape drive identifier, the first computer determines that the tape drive is connected to the first computer. The source port identifier is determined to not identify any host bus adapter installed in the first computer. In response to the first computer determining that the reservation status change indicates a reservation or a release of the tape drive for the second computer, the first computer sets the tape drive offline or online, respectively, in an application executing in the first computer.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: April 30, 2013
    Assignee: International Business Machines Corporation
    Inventors: Nils Haustein, Leonard George Jesionowski, Wolfgang Muelller-Friedt, Ulf Troppens
  • Automated tape drive sharing in a heterogeneous server and application environment
    Patent number: 8255476
    Abstract: A method and system for automatically sharing a tape drive in a heterogeneous computing environment that includes a first computer and second computer. The first computer receives a message that includes a shared tape drive identifier, a source port identifier of the second computer, and a reservation status change for the tape drive. Based on the tape drive identifier, the first computer determines that the tape drive is connected to the first computer. The source port identifier is determined to not identify any host bus adapter installed in the first computer. In response to the first computer determining that the reservation status change indicates a reservation or a release of the tape drive for the second computer, the first computer sets the tape drive offline or online, respectively, in an application executing in the first computer.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: August 28, 2012
    Assignee: International Business Machines Corporation
    Inventors: Nils Haustein, Leonard George Jesionowski, Wolfgang Muelller-Friedt, Ulf Troppens
  • AUTOMATED TAPE DRIVE SHARING IN A HETEROGENEOUS SERVER AND APPLICATION ENVIRONMENT
    Publication number: 20100250698
    Abstract: A method and system for automatically sharing a tape drive in a heterogeneous computing environment that includes a first computer and second computer. The first computer receives a message that includes a shared tape drive identifier, a source port identifier of the second computer, and a reservation status change for the tape drive. Based on the tape drive identifier, the first computer determines that the tape drive is connected to the first computer. The source port identifier is determined to not identify any host bus adapter installed in the first computer. In response to the first computer determining that the reservation status change indicates a reservation or a release of the tape drive for the second computer, the first computer sets the tape drive offline or online, respectively, in an application executing in the first computer.
    Type: Application
    Filed: March 30, 2009
    Publication date: September 30, 2010
    Inventors: Nils Haustein, Leonard George Jesionowski, Wolfgang Muelller-Friedt, Ulf Troppens