Method and system for managing a PCI bus coupled to another system

The present invention provides a PCI bus switching architecture to allow a pair of PCI processors to have access to a common set of PCI I/O cards. More specifically, this design allows either cross-coupled processor to dynamically take over the operational controls of the common set of PCI I/O cards if the primary processor for the same become inoperative. The present invention achieves the objective by employing a point to point data link connection between each processor and their respective controllers for each common set of PCI I/O cards associated with a PCI bus.