Replacing Components; Replacing A Fan Module During Operations - Cisco Nexus 9364C 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.
If a power supply has white coloring, it can be used with fan modules using either port-side intake or port-side
exhaust airflow. 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:
• There are two functioning fan modules in the other fan slots. In order to replace a fan module during
• 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) Press the two colored sides of the fan module handle towards each other and pull the handle to slide the module out
of the chassis.
Replacing a Fan Module During Operations, on page 37
Replacing a Power Supply Module, on page 39
operations, there must be two fan modules circulating air in the chassis at all times. The other fan module
is redundant and can be replaced.
C H A P T E R
Cisco Nexus 9364C NX-OS Mode Switch Hardware Installation Guide
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