Fan Module Redundancy

The eight fan modules (FMs) provide airflow for chassis cooling zones 1-4. For redundancy, each zone has two dedicated FMs. Replace a failed fan module immediately. The FMs are hot-serviceable.

Caution:

Data Loss. Do not remove more than one fan module from a column while the system is in Main power mode. This action removes power from the CMODs and causes an immediate shutdown. On an eight-CMOD system, this applies to all fan modules.

For FM reference and servicing information, see Servicing Fan Modules (CRU) and Fan Frames (CRU).