Replacing Components; Replacing A Fan Module During Operations - Cisco Nexus 93600CD-GX Hardware Installation Manual

Replacing Components

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Replacing a Fan Module During Operations

All fan and power supply modules must have the same airflow direction or else an error can occur with the
switch overheating and shutting down. You can determine the airflow direction of a fan module by the color
of the stripe on the front of the module. If the fan module has a blue stripe for port-side exhaust airflow, the
power supplies must have blue coloring for the same airflow direction. If the fan module has a burgundy stripe
for port-side intake airflow, the power supplies must have burgundy coloring for the same airflow direction.
To avoid over heating the switch, make sure that the fan modules are positioned in one of the following ways:
• For port-side exhaust airflow with blue coloring, position the fan modules in a cold aisle.
• For port-side intake airflow with burgundy coloring, position the ports in a cold aisle.
Before you begin
Before you can replace a fan module, ensure that both of the following conditions exist:
• The replacement fan module must have the same airflow direction as the other modules in the chassis.
If you must replace the fan module during operations and both of the above conditions are not met, leave the
fan module that you need to replace in the chassis to preserve the designed airflow until you have the required
module.
Step 1 Remove the fan module that you need to replace as follows:
a) Place the removed module on an antistatic surface or in an antistatic bag. If possible, repack the module in its packing
materials for safe shipping or storage.
Step 2 Follow these steps to replace the missing fan module within two minutes to avoid a shutdown.
a) Remove the replacement fan module from its packing materials and place it on an antistatic surface.
Hold the module by its handle and do not touch the electrical connectors on its backside. Also, to protect the electrical
connectors, avoid letting them come in contact with anything other than the electrical connectors inside the chassis.
Replacing a Fan Module During Operations, on page 33
Replacing a Power Supply Module, on page 34
C H A P T E R
Cisco Nexus 93600CD-GX ACI-Mode Switch Hardware Installation Guide
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