Chapter 6: Advanced Chassis Setup
6-5
6-5 Checking the Airflow
Checking Airflow
•
Make sure there are no objects to obstruct airflow in and out of the server. In
addition, if you are using a front bezel, make sure the bezel's filter is replaced
periodically.
•
Do not operate the server without drives or drive trays in the drive bays. Use
only recommended server parts.
•
Make sure no wires or foreign objects obstruct airflow through the chassis. Pull
all excess cabling out of the airflow path or use shorter cables.
•
The control panel LEDs inform you of system status. See “Chapter 3: System
Interface” for details on the LEDs and the control panel buttons.
6-6 System Fans
Four fans provide cooling for the chassis. These fans circulate air through the
chassis as a means of lowering the chassis internal temperature. They are hot-
swappable, so there is no need to power down the system when replacing fans
and new tools are required for installation.
Optional Fan Configurations
The chassis is designed so that the default configuration of the system is for each
serverboard to control two fans (Figure 6-4). The fans are hot-swappable. Each
serverboard node in the chassis is connected to the backplane through the adapter
card, mounted in the serverboard drawer. In the event that one of the serverboard
drawers is removed, then the remaining serverboard will operate the fans.
Fan Configurations Options
Hot-Swappable Default Configuration
Fan A and B connected to backplane, backplane connected to Node A by adapter card
Fan C and D connected to backplane, backplane connected to Node B by adapter card
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