IBM eserver Cluster 1350, Installation And Service Manual

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v
To turn off the power distribution units, unplug the power cables from the wall
outlet.
v
The following devices have no power switch and must be unplugged if the
power distribution units are not turned off:
– KVM switch
– Cisco 10/100 switch
– Cisco Gigabit switch
– In-Reach terminal server
5. Unplug the power distribution unit power cables from the wall outlet.
Finding information about a lights out or brown out event
In the event of a lights out or brown out event, the following sequence occurs:
v The system is up and running typical applications.
v
A lights out or brown out event occurs. The system shuts down then restarts
through an external source.
v
All nodes turn on to the last known state (On/Off). If the last known state is On,
then the nodes will boot to a console login prompt.
v Log files show system restart events on nodes and on Remote Supervisor
Adapter devices. Review the following log files for more information about the
event:
– /var/log/messages
– /var/log/csm/installnode.log
– RSA event log.
– BIOS event log
Related topics
v
Chapter 5, “Checking the Cluster 1350 cabling process,” on page 23
v
Appendix C, “Error and event logs,” on page 77
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IBM
Eserver
Cluster 1350 Installation and Service Guide