Removing A Fan Module - Cisco MDS 9396T Installing

Removing a Fan Module

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 one minute 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 Tighten the fan module captive screw.
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.
Caution The Cisco MDS 9000 Family has internal temperature sensors that can shut down the system if the temperature
at different points within the chassis exceed certain safety thresholds. To accurately monitor the system
temperature, the temperature sensors require sufficient airflow through the chassis. In the event that a fan
module is removed from the chassis and the airflow is reduced, the system will bypass the temperature sensor
information and shut down after five minutes to prevent undetected overheating. However, the switches will
shut down sooner if the major temperature threshold is exceeded.
Note While removing the fan module, keep your hands and fingers away from the spinning fan blades. Let
the fan blades completely stop before you remove the fan module. Statement 258
To remove the existing fan module, follow these steps:
Step 1
Locate the fan module in the back of the switch.
Step 2 Loosen the fan module captive screw.
Step 3
Grasp the fan module handle and pull it outward.
Step 4 Once the fan blades have stopped spinning, remove the fan module completely from the fan bay.
Installing the Cisco MDS 9396T Switch
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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).
Installing the Cisco MDS 9396T Switch