User`s guide

2-2
ESCALA T610 and PL 600T User’s Guide
Powering On and Powering Off the System
This section provides procedures for powering on and powering off the system.
Powering On the System
Perform the following steps to power on the system unit:
1. Set the power switches of the attached devices to on.
Note: When the system is plugged in but not powered on, the Power–on LED flashes
slowly.
2. Press the Power on/off button one the operator panel.
When you press the Power on/off button, the Power–on LED begins blinking at a fast
rate and the system starts a POST (power–on self–test).
During POST, checkpoint codes (9xxx) appear in the operator panel display.
Note: If the Power–on LED does not come on and there is no indication of power when
you press the Power–on/off button, ensure that the power cord, located at the back
of the system unit, is plugged into a grounded electrical outlet. If this does not solve
the problem, go to Chapter 8, ”Hardware Problem Determination”.
3. After the POST, the power–on LED stops blinking and stays on.
4. The system loads the AIX operating system.
Powering Off the System
Attention: When using the shutdown procedure for your system, follow the correct
shutdown procedure before you stop the system unit. Failure to do so may result in the
loss of data.
1. At a command line, type shutdown to stop the operating system.
2. After you shut down the operating system, set the power switches of any attached
devices to Off. The system unit power is turned off by the shutdown procedure.
3. If you will be servicing the system unit, unplug the system unit power cable from the
electrical outlet.
Note: The power can be turned off by pressing the power–on/off button:
1. Press the power–on/off button on the operator panel.
2. The power–on LED starts blinking at a fast rate. B0FF appears in the operator
panel.
3. When the power–off sequence is complete, the system goes into
standby–mode, as evidenced by the OK message on the operator panel. The
power–LED starts blinking at a slow rate.
Using the shutdown command is the preferred method of shutting down the
system and turning the system power off.
The system can be turned off and on using the System Power Control menu, which is a
Service Processor menu that is available to the privileged user. See ”System Power Control
Menu” on page 3-9.