User Guide
57
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Maintenance from the rear of the rack might be carried out in a dark, narrow space. The
interface cable of a server or power supply unit in normal state may be disconnected by
accident in this situation. To prevent this problem, you should start maintenance after
confirming the target server by using the UID switch.
Figure 26: Front of the server
A: UID switch
B: UID LED
Figure 27: Rear of the server
A: UID switch
B: UID LED
Powering Off the Server System
When server system power is on, pressing the power on/off switch on the front panel of
the server turns the power off.
To turn the server system power off:
1. Shutdown the operating system (OS).
2. If necessary, press the POWER switch on the front of the computer chassis
again to power off the system. The POWER lamp lights off.
3. Power off the peripheral devices.
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