Abstract: PCI (Peripheral Component Interconnect) adapters capable of dynamically switching between being controlled by a system processor and a specialized input/output processor (IOP), are utilized. A method of fault recovery in such a system involves switching those PCI adapters under IOP control to operate under system control when an IOP fault is detected, and switching the same PCI adapters back to IOP control when correction of the fault is detected. A computer system with dynamically switchable PCI adapters has the capability of optimizing processor utilization by switching control from one processor to the other when it is determined that the processor currently controlling the PCI adapters is being over utilized, and such over utilization is likely to continue for a period of time, and the non-controlling processor has sufficient capacity that the switch would not adversely affect current system throughput.

Abstract: Higher availability in a computer system is achieved by utilizing PCI (Peripheral Component Interconnect) adapters capable of dynamically switching between being controlled by a system processor and a specialized input/output processor (IOP). A method of fault recovery in such a computer system involves switching those PCI adapters under IOP control to operate under system control when an IOP fault is detected, and switching the same PCI adapters back to IOP control when correction of the fault is detected. A computer system with dynamically switchable PCI adapters also has the capability of optimizing processor utilization by switching control from one processor to the other when it is determined that the processor currently controlling the PCI adapters is being over utilized, and such over utilization is likely to continue for a period of time, and the non-controlling processor has sufficient capacity that the switch would not adversely affect current system throughput.

Abstract: A computer system and method of managing a logical partition on a logically-partitioned multi-user computer utilize a handheld computer with a plug-in console emulation module to emulate a console through which various system administrations operations may be performed. The handheld computer is coupled to an adapter on a logically-partitioned computer via a plug-in module coupled to the handheld computer and connected to the adapter via a cable. The handheld computer is configured to emulate a console for a logical partition in the partitioned computer using program code resident in the plug-in module. The plug-in module may incorporate a network interface configured to receive a network connector, a memory, and program code resident in the memory and configured to control the handheld computer to perform the desired console emulation.

Abstract: A computer system and method of managing a logical partition on a logically-partitioned multi-user computer utilize a handheld computer with a plug-in console emulation module to emulate a console through which various system administrations operations may be performed. The handheld computer is coupled to an adapter on a logically-partitioned computer via a plug-in module coupled to the handheld computer and connected to the adapter via a cable. The handheld computer is configured to emulate a console for a logical partition in the partitioned computer using program code resident in the plug-in module. The plug-in module may incorporate a network interface configured to receive a network connector, a memory, and program code resident in the memory and configured to control the handheld computer to perform the desired console emulation.