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Installing and Removing Components
within five minutes, leave the original fan module in the chassis to maintain the designed airflow until you
have the replacement fan module on hand and can perform the replacement.
Caution
If you are changing the airflow direction of all the modules in the chassis, you must shut down the switch
before replacing all the fan and power supply modules with modules using the other airflow direction. During
operations, all the modules must have the same direction of airflow.
Note
Installing a Fan Module
To install a new fan module, follow these steps:
Before you begin
• A fan slot must be open and ready for the new fan module to be installed.
• You must have a new fan module on hand and ready to install within five minutes of removing the original
• The new fan module must have the same airflow direction as the other fan and power supply modules
Step 1
Slide the fan module into the fan module bay.
Step 2
Pinch the colored tab with two fingers and push the fan module tab to get it fully inserted.
Step 3
Verify that the Status LED turns on and becomes green.
Removing a Fan Module
The fan module is designed to be removed and replaced while the system is operating without presenting an
electrical hazard or damaging the system.
If you are replacing a module during operation, be sure that the replacement fan module has the correct
direction of airflow, which means that it has the same airflow direction as the other fans in the chassis. Also,
be sure that the airflow direction takes in air from a cold aisle and sends it out to a hot aisle. Otherwise, the
switch can overheat and shut down.
Fan modules are color coded indicating their airflow direction. Ensure the replacement fan module is of the
same color as the remaining fan module in the chassis.
fan module if the switch is operating.
installed in the switch. All of these modules must have either red coloring (port-side intake airflow) or
they must all have blue coloring (port-side exhaust airflow).
Cisco MDS 9396V Multilayer Fabric Switch Hardware Installation Guide
Installing a Fan Module
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