Power Supply - Compaq ProLiant Storage System U1 User Manual

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4-9 Troubleshooting

Power Supply

The power supply in the ProLiant Storage System /U is pluggable. This means
that the supply may be easily replaced by simply unplugging it and plugging in
a replacement. Select the procedure to follow depending on whether or not the
system has a redundant power supply option installed.
Single Power Supply Systems
The procedure to replace a power supply in a ProLiant Storage System /U with
a single power supply is as follows:
1. Perform a normal system shutdown for the server(s) supporting the
storage system.
2. Turn OFF the server, then place the storage system in STANDBY (front
panel power switch).
3. Shut off power or remove the AC power cord from the power supply
before replacing it.
WARNING: To reduce the risk of injury or damage to the equipment,
observe the following precautions when connecting and disconnecting power
to the power supplies:
Install the power supply before connecting the power cord to the
power supply.
Unplug the power cord before removing the power supply from
the equipment.
To completely remove power from a system, unplug all power cords
from the power supplies.
Compaq ProLiant Storage System /U User Guide