IBM ThinkPad R30, Operator'S Manual

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Using the AC Rack
5-9
Stopping the AC Rack Containing a PDB – Under Ordinary Conditions
Notes:
Before turning the power off the drawers or external devices, ask the customer about
their system high availability requirements.
Other drawers in this system unit may be provided power from a PDB in an attached
system unit.
Attention: Use the appropriate shutdown command before you stop the system unit;
failure to do so may result in the loss of data. Refer to
AIX System Management Guide:
Operating System and Devices and other operating system documentation for information
about the shutdown command and stopping the system unit.
1. Set the key mode switch to the Service position.
2. Set the Power button to off (button in the out position).
Key Mode Switch
Normal
Secure
Service
Operator Panel
Power Button
Attention: This unit may have more than one power supply cord. To completely remove
power, you must disconnect all power supply cords.
Note: Because many external devices can be connected to the system unit, it may be
impractical for you to switch off power to all the devices and unplug their power
cords.
3. Switch off power to all external devices attached to the system unit, and then unplug the
device power cords from the electrical outlets.