Disk array apparatus and method of controlling the same

A disk array apparatus comprising a disk array controller,

• wherein the disk array controller has a CPU incorporating a plurality of processor cores that cannot be physically separated from each other, each processor core serves as an unit processor, one unit processor manages all the unit processors separately, allocates a self-contained control program to each unit processor dynamically so that the operation of the unit processor can be terminated appropriately or not-dynamically so that the unit processor can operate until the operation of the whole CPU is terminated, manages the processing load or processing status of the allocated control program on a unit-processor basis, and terminates all the control programs, if a failure occurs in a particular processor core, taking into consideration whether the control program is allocated to the processor core or unit processor dynamically or not-dynamically and the order of termination of the control programs.

A method of controlling a disk array apparatus comprising a disk array controller having a CPU incorporating a plurality of processor cores that cannot be physically separated from each other, each of the processor cores serving as a unit processor,

• wherein all the unit processors are managed separately, a self-contained control program is allocated to each unit processor dynamically so that the operation of the unit processor can be terminated appropriately or not-dynamically so that the unit processor can operate until the operation of the whole CPU is terminated, and the processing load or processing status of the allocated control program is managed on a unit-processor basis.