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Chapter 4 FRU Replacement Preparation 4-13
4.5.1.2 Power off by Using the Operator Panel
1. Notify users that the server is being powered off.
2. Back up the system files and data to tape, if necessary.
3. Turn the mode switch on the operator panel to the Service position.
4. Press the power switch on the operator panel for 4 seconds or more.
5. Verify that the POWER LED on the operator panel is off.
6. Disconnect all the power cords from the power outlets.
Caution – There is a risk of electrical failure if the power cords are not
disconnected. All the power cords must be disconnected to completely cut the power
to the server.
4.5.2 FRU Removal and Replacement
In cold replacement, a FRU is removed and replaced while the power is turned off.
After the FRU replacement, power on the server.
4.5.3 Powering on the Server
This section explains how to power on the server.
4.5.3.1 Power-on by Using the XSCF Command
1. Verify that the server has enough power supply units to operate in the desired
configuration.
2. Connect all the power cords to power outlets.
3. Verify that the XSCF STANDBY LED on the operator panel is on.
4. Turn the mode switch on the operator panel to the desired mode position
(Locked or Service).