Overview
The airflow direction of the switch and how to ensure that the airflow is not impeded.
The switch is positioned with its ports in either the front or the rear of the rack, depending on your cabling and maintenance requirements. To identify the airflow options for your switch, see the user-replaceable components in the Overview section of this document. Position the fan and power supply modules to move the coolant air from the cold aisle to the hot aisle in one of these ways:
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Port-side exhaust airflow: Cool air enters the chassis through the fan and power supply modules in the cold aisle and exhausts through the port end of the chassis in the hot aisle.
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Port-side intake airflow: Cool air enters the chassis through the port end in the cold aisle and exhausts through the fan and power supply modules in the hot aisle.
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Single-direction airflow: The direction of the installed fan modules determines the airflow.
Identify the airflow direction of each fan and power supply module by its coloring.
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Blue coloring indicates port-side exhaust airflow.
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Red coloring indicates port-side intake airflow.
To prevent the switch from overheating and shutting down, position the air intake for the switch in a cold aisle. The fan and power supply modules must have the same direction of airflow. To change the airflow direction for the switch, shutdown the switch before changing the modules.