NetApp DiskShelf14mk2 FC, Hardware And Service Manual

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44 Replacing a power supply in a disk shelf
Replacing a power supply in a disk shelf
About this section Replacing a power supply in a disk shelf consists of the following procedures:
◆
“ Removing a power supply ” on page 44
◆
“ Installing a power supply ” on page 46
Rules for replacing
power supplies When replacing the power supply on your disk shelf, observe the following rules:
◆
You do not need to turn off the power when you replace one power supply.
◆
If you are replacing both power supplies in the same disk shelf, replace them
one at a time to avoid powering down the disk shelf.
Removing a power
supply To remove a power supply, complete the following steps.
Step Action
1 Put on the antistatic wrist strap and grounding leash.
2
If you have a disk shelf
with...
Then...
An AC power supply 1. Turn off the switch on the power supply that you are
replacing.
2. Lift up the clip lock and unplug the power cord from the
system power supply.
A DC power supply 1. Turn off and unplug the cable to the power supply you are
replacing from the power source.
2. Using a #2 Phillips screwdriver, remove and save the
screws securing the connections to the power supply in the
following order:
❖
For positive ground installations: first negative (–),
then positive (+), then ground (
)
❖
For negative ground installations: first positive (+),
then negative (–), then ground (
)