Method and system for the efficient response to multiple differe

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3642302, 3642412, 3642383, 364DIG1, G06F 1324

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active

053136403

ABSTRACT:
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.

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