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AssigneeInternational Business Machines Corporation
InventorsBrent C. Beardsley, David L. Leigh, Cortland D. Starrett, John R. Wolfe
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A method and system in a data processing system for the efficient response to multiple different types of interrupts. The data processing system includes at least one host and a storage subsystem having storage subsystem devices and at least one storage subsystem controller. The storage subsystem controller operates in multiple different states. Interrupts of multiple different types are generated by sources of real time events and are received by the storage subsystem controller. A selected type of interrupt as a preferred next interrupt to be received by the storage subsystem controller is then determined in response to the determination of the current state of the storage subsystem controller. A particular state associated with the occurrence of the selected type of interrupt is then determined. Reversible processing associated with the particular state is initiated prior to receipt of a next interrupt wherein the selected type of interrupt is efficiently enhanced in priority in response to the current state of the storage subsystem controller.
A method in a data processing system having at least one host and a storage subsystem including a plurality of storage subsystem devices and at least one storage subsystem controller for efficiently responding to interrupts of multiple different types received by said storage subsystem controller, said interrupts generated by a plurality of sources of real time events, said storage subsystem controller operating in one of a plurality of different states, said method comprising within said processing system the steps of:
A data processing system having at least one host and a storage subsystem including a plurality of storage subsystem devices and at at least one storage subsystem controller for efficiently responding to interrupts of multiple different types received by said storage subsystem controller, said interrupts generated by a plurality of sources of real time events, said storage subsystem controller operating in one of a plurality of different states, said data processing system comprising:
Dependencies are inferred from the claim text.