| 摘要 |
An information processing apparatus having an information storage device, a power saving control method and a recording medium for storing the program therein, in which repetition of a periodic access pattern is recognized and the present mode is changed over to a power saving mode. In an information processing apparatus having an information storage device 1 such as a magnetic disc device, input/output data amount between a main unit of computer system 2 and the information storage device 1 is monitored by an input/output data amount monitoring means 3, recorded in an input/output data amount history storage means 5 at a sampling interval Y by an input/output data amount history management means 4, a period X in which a variation in the input/output data amount repeats a given pattern is obtained by the power supply management control means 6, it is judged whether or not the input/output data amount is zero during a period between (C-X) and (C-X+Z), with C as the present time, and if the input/output data amount is zero, it is estimated that the variation in the succeeding input/output data amount has the same pattern, and the present mode is changed over to a power saving mode.
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