COMPUTER SYSTEM, STORAGE MANAGEMENT COMPUTER AND STORAGE MANAGEMENT METHOD

摘要

PROBLEM TO BE SOLVED: To improve the efficiency of the management task of a storage manager by estimating an execution time under the consideration of the competition of a task in the case of asynchronously executing a plurality of tasks in which storage operations are registered.SOLUTION: A storage device includes a memory device for storing data to be read/written by a host computer, and the storage region of the memory device is provided to the host computer as one or more volumes. A storage management computer includes a first memory for storing task information including operation processing content to the storage device and the start scheduled time and end scheduled time of processing. In the case of allowing the first memory to store first task information, when a resource to be used for processing of the second task information stored in the first memory is the same as a resource to be used for processing of the first task information, the required time of the execution of the first task information and the second task information is calculated on the basis of a time when the processing of the first and second task information is overlapped.