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Power Supply Unit
The Netra 240 server has dual redundant power supplies. You can hot-swap one
power supply while the other is still running, without having to power off the
server.
Caution – The power supplies contain pinch points. Be very careful when opening
and closing the levers on the power supplies. Keep your hands and fingers away
from the base and sides of the levers. For more information about these pinch points,
refer to the power supply labels.
Removing a Power Supply Unit
1. At the ALOM prompt, type:
sc> removefru -y PSn
Where n is the power supply unit identifier (1 or 2). For example, to replace power
supply unit 1, you would enter:
sc> removefru -y PS1
When the blue OK to Remove LED on the back of the power supply unit lights up,
you can safely remove the unit. See
for the power supply unit.
2. Disconnect the power input cable from the power supply unit being replaced.
Caution – Do not remove the power input cable from the remaining power supply
unit. Doing so causes the system to go through an immediate ungraceful shutdown.
3. Pull the lever on the back of the power supply unit down (
This disconnects the power supply unit from the power distribution board inside the
server.
FIGURE 1-7
Chapter 3 Removing and Replacing Front and Rear Panel Components
for the location of the LED indicators
FIGURE 3-8
).
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