Multiple computer equipment and management method for determining number of ac-dc power modules to be operated by calculating power consumption based upon system information

Abstract

An object of the present invention is to provide a management technique for managing power supply modules. In multiple computer equipment, in response to a load state, if an operation systemissues a command that changes a processor state of a processorto a sleep state, a management moduleis notified through a management network MI that the processor state has changed. The management moduleholds a system information, and performs the steps of: updating system informationbecause the processor state has changed; from this system information, calculating the power consumption required for the multiple computer equipment; determining the number of required AC-DC power supply modules, . . . to be operated; and changing the number of operating AC-DC power supply modules, . . . by use of a control interface PA.