公开(公告)号：AT305152T

公开(公告)日：2005-10-15

申请号：AT02701434

申请日：2002-02-27

Applicant: IBM

Inventor： DAWKINS GEORGE JOHN JR ,  LEE VAN HOA ,  PATEL KANISHA ,  PHAN PETER DINH ,  INTELL PROPERT LAW ,  WILLOUGHBY DAVID

IPC: G06F9/46 ,  G06F9/445 ,  G06F9/455

Abstract: A method, apparatus, and computer implemented instructions for controlling power in a data processing system having a plurality of logical partitions. Responsive to receiving a request to turn off the power for a logical partition within the plurality of logical partitions in the data processing system, a determination is made as to whether an additional partition within the plurality of logical partitions is present in the data processing system. The power is turned off in the data processing system in response to a determination an additional partition within the plurality of logical partitions is absent in the data processing system. The logical partition is shut down in response to a determination that an additional partition within the plurality of logical partitions is present in the data processing system. The mechanism of the present invention also provides for rebooting logical partitions. A request is received to reboot a logical partition within the plurality of logical partitions. A reset signal is activated only for each processor assigned to the logical partition.