Virtual input/output server

  • US 7,783,788 B1
  • Filed: 01/18/2007
  • Issued: 08/24/2010
  • Est. Priority Date: 04/28/2006
  • Status: Active Grant
First Claim
Patent Images

1. An apparatus, comprisinga memory;

  • one or more processors;

    an input/output (I/O) fabric interface;

    an I/O subsystem physical interface;

    I/O subsystem device protocol stack logic operative to control data transfer with one or more peripheral systems over the I/O subsystem physical interface; and

    virtualization logic encoded in one or more tangible media for execution and when executed operable to cause the one or more processors to;

    establish one or more persistent control connections to virtual I/O peripheral subsystem interface driver modules of one or more application servers;

    transmit I/O peripheral subsystem configurations to the one or more application servers over the respective one or more persistent control connections;

    emulate, relative to the one or more peripheral systems, the one or more application servers;

    intermediate I/O subsystem traffic between the one or more application servers and the one or more peripheral systems; and

    control utilization of resources of the I/O subsystem physical interface by the one or more application servers according to a configured allocation of resources for the I/O subsystem physical interface across the one or more application servers.

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