Chapter 2 Basic Operation
2.1 Powering On and Off
2.1.2
Switching On and Off the PSU Switch on the Power Supply Unit
This section explains how to switch the PSU switch of the power supply unit to ON and OFF in
each enclosure.
■
To switch to ON
Turn the PSU switch of the power supply unit to the ON position (marked "|").
Make sure all of the PSU switches are in the ON position.
IMPORTANT
Power supply unit (PSU#0)
Power supply unit (PSU#1)
Figure 2.5
ON position (marked "|") of the PSU switch on a power supply unit
AC power is supplied to a power supply unit. The POWER LED on the power supply unit blinks
green. The fan revolves at high speed for about 30 seconds.
34
ETERNUS DX80 S2/DX90 S2 Disk storage system User's Guide -Operation-
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