Proposed is an information processing apparatus and its control method capable of acquiring the operation results of the same point in time in a plurality of storage apparatuses in a highly reliable manner. With this information processing apparatus connected to a plurality of storage apparatuses and its control method, a time difference between an internal time of the storage apparatus and an internal time of the information processing apparatus is detected regarding each of the plurality of storage apparatuses, a time added with the time difference between the internal time of the storage apparatus and the internal time of the information processing apparatus as an execution time of a predetermined operation is set to the plurality of storage apparatuses at an arbitrary future time, and an execution result of the predetermined operation is collected from each of the plurality of storage apparatuses after the lapse of the future time.