Abstract: An information processing apparatus includes a first circuit configured to operate in synchronization with a clock time of the first circuit, a second circuit configured to operate in synchronization with a clock time of the second circuit and control the first circuit, a first memory, and a first processor coupled to the memory and configured to when a first clock time of the first circuit is synchronized with a second clock time of the second circuit or a reference clock time, calculate a coefficient for clock time correction according to change in a difference between at least one of the first clock time and the second clock time and the reference clock time, and correct clock time information of logs collected by the second circuit based on the coefficient.

Abstract: A storage controlling device including a memory and a processor configured to obtain information on each of a plurality of remaining lives of each of a plurality of storage devices included in a redundancy storage system, determine each of a plurality of timings for replacement of each of the plurality of storage devices so that a number of the timings for replacement included in a predetermined time range is less than a predetermined number, each of a plurality of timings for replacement being determined to be earlier than each of the plurality of timings that malfunctions occur in each of the plurality of storage devices corresponding to each of a plurality of timings for replacement, each of the plurality of timings that malfunctions occur being specified based on the obtained information, and output information that indicates at least one of the plurality of determined timings for replacement.

Abstract: A storage controlling device including a memory and a processor configured to obtain information on each of a plurality of remaining lives of each of a plurality of storage devices included in a redundancy storage system, determine each of a plurality of timings for replacement of each of the plurality of storage devices so that a number of the timings for replacement included in a predetermined time range is less than a predetermined number, each of a plurality of timings for replacement being determined to be earlier than each of the plurality of timings that malfunctions occur in each of the plurality of storage devices corresponding to each of a plurality of timings for replacement, each of the plurality of timings that malfunctions occur being specified based on the obtained information, and output information that indicates at least one of the plurality of determined timings for replacement.