Patent ID: 7321976
Filing Date: 2008-01-22
Classification: G06F

Abstract:
1. A power supply control method in a system in which a power supply control device is provided for each of a plurality of information processing devices connected to a network, comprising: a representative information processing device of the plurality of information processing devices normally issuing, according to a predetermined power-up/down schedule of said representative information processing device and other information processing devices, a power-up instruction to each power supply control device of the other information processing devices upon each activation; notifying each power supply control device of the other information processing devices of a next power-up date and time, having each power supply control device enter the next power-up date and time, and issuing a power-down instruction to each of the other information processing devices each time a power-down date and time comes; and each power supply control device of said other information processing devices performing a power-up process if the entered power-up date and time comes and the representative information processing device abnormally issues no power-up instruction to each power supply control device of the other information processing devices; wherein said power-up date and time given to each of said power supply control devices of said other information processing devices is obtained by any of said information processing devices or each of said other information processing devices automatically adding an arbitrary margin to a power-up date and time in said predetermined power-up/down schedule.