Method, recording medium and apparatus for power saving control via detection of usage pattern based on stored history and accounting of a spin down cost

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 unit 3 , recorded in an input/output data amount history storage unit 5 at a sampling interval Y by an input/output data amount history management unit 4.