Method and system for managing system bus communications in a data processing system

  • US 5,754,804 A
  • Filed: 01/30/1996
  • Issued: 05/19/1998
  • Est. Priority Date: 01/30/1996
  • Status: Expired due to Fees
First Claim
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1. A method for increasing the performance and reliability of a data processing system, said method comprising the steps of:

  • coupling a first system processor to a first system bus, wherein said first system processor includes a first bus controller;

    coupling a second system processor to a second system bus, wherein said second system processor includes a second bus controller;

    coupling said first bus controller to a management bus;

    coupling said second bus controller to said management bus;

    coupling at least one feature device to said first system bus, said second system bus, and said management bus, wherein said at least one feature device is configured to communicate system processor communications with said first system processor via said first system bus;

    detecting a problem that affects system processor communications over said first system bus between said at least one feature device and said first system processor;

    sending a command on said management bus to said at least one feature device; and

    in response to receiving said command from said management bus, configuring said at least one feature device to communicate system processor communications with said second system processor via said second system bus, wherein said data processing system including said at least one feature device continues to operate as a result of communicating system processor communications with said second system processor via said second system bus in the presence of a problem that affects system processor communications over said first system bus.

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