Replacing a power supply in a disk shelf
About this section
Replacing a power supply in a disk shelf consists of the following procedures:
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
|
- Turn off the switch on the power supply that you are
replacing.
- Lift up the clip lock and unplug the power cord from the
storage controller power supply.
|
A DC power supply
|
- Turn off and unplug the cable to the power supply you are
replacing from the power source.
- 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 (
)
|
3
|
If the CAM mechanism on the power supply is...
|
Then...
|
In the middle of the rear of the unit
|
Using the thumb and index finger of both hands, press the CAM mechanism levers in the middle of the power supply to release it.
|
The following figure shows how to release the CAM mechanism.
|
At the top of the rear of the unit
|
Using your thumb and index finger, press the CAM mechanism levers toward each other to release the power supply handle.
|
The following figure shows how to press the levers on the CAM mechanism and release the power supply handle.
|
4
|
Use the handle to pull the power supply out of the disk shelf.
WARNING When removing a power supply, always use two hands to support its weight.
|
Installing a power supply
To install a power supply in a disk shelf, complete the following steps.
Caution
Do not use excessive force when sliding the power supply into the disk shelf. You can damage the connector.
Step
|
Action
|
1
|
Put on the antistatic wrist strap and grounding leash.
|
2
|
If the power supply CAM mechanism is...
|
Then slide the power supply in the power supply bay...
|
In the middle of the rear of the unit
|
And push the CAM mechanism levers into place.
|
At the top of the rear of the unit
|
- Until you hear the power supply
connect with the connector inside the
disk shelf chassis.
- Raise the handle and push it into
place.
- Using your thumb and index finger,
press the CAM mechanism levers
toward each other to engage the
power supply into place.
|
|
The following figure shows how to raise the handle into place.
|
3
|
If the disk shelf has...
|
Then...
|
An AC power supply
|
- Plug the power cord into the power
receptacle and fasten it with the
clamp.
- Plug the other end of the power cord
into a grounded AC power source.
|
A DC power supply
|
- Connect the positive, negative, and
ground wires to the power supply.
- Plug the other end of each power
cord into a power source.
|
4
|
Turn on the power switch.
|
Copyright © 1994-2007, Network Appliance, Inc. All rights
reserved.
Part No. 210-01431_B0
File: devices7.htm
Last updated: 09-Apr-2007 17:02:39