Chapter 4. Hardware Replacement Procedures; Replacing A Power Supply - Lenovo ThinkSystem DG5000 Hardware Installation And Maintenance Manual

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Chapter 4. Hardware replacement procedures

Replacing a power supply involves disconnecting the target power supply (PSU) from the power source,

unplugging the power cable, removing the old PSU and installing the replacement PSU, and then

reconnecting it to the power source.

• The power supplies are redundant and hot-swappable.

• This procedure is written for replacing one power supply at a time.

Note: It is a best practice to replace the power supply when a replacement power supply is available. The

power supply should be replaced within two minutes of removing it from the chassis or the system will

shut down. The system continues to function with a failed power supply installed, but ONTAP sends

messages to the console about the degraded power supply unit until the power supply is replaced.

• Power supplies are auto-ranging.

A video for this task is available at:

• YouTube:

https://www.youtube.com/playlist?list=PLYV5R7hVcs-C8THdP1nmPF25RWwGRta3v

Step 1.

If you are not already grounded, properly ground yourself.

Step 2.

Identify the power supply you want to replace, based on console error messages or through the red

Fault LED on the power supply.

Step 3.

Disconnect the power supply:

Open the power cable retainer, and then unplug the power cable from the power supply.

Unplug the power cable from the power source.

Step 4.

Rotate the cam handle such that it can be used to pull power supply out of the controller module

while pressing the locking tab.

CAUTION:

The power supply is short. Always use two hands to support it when removing it from the

controller module so that it does not suddenly swing free from the controller module and

injure you.

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