US 7,321,976 B2 | ||
Information processing apparatus, power supply control method for plural information processing apparatuses, and storage medium therefore | ||
Toshitaka Hasegawa, Nagoya (Japan) | ||
Assigned to Fujitsu Limited, Kawasaki (Japan) | ||
Filed on Feb. 26, 2002, as Appl. No. 10/82,176. | ||
Claims priority of application No. 2001-316439 (JP), filed on Oct. 15, 2001. | ||
Prior Publication US 2003/0074592 A1, Apr. 17, 2003 | ||
Int. Cl. G06F 1/00 (2006.01) |
U.S. Cl. 713—330 [713/300] | 15 Claims |
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.
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