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Appendix A Troubleshooting
Troubleshooting the Fan Module
A-6
Cisco MDS 9216 Switch Hardware Installation Guide
78-16165-01
Troubleshooting the Fan Module
To isolate a fan module problem, follow these steps:
Step 1 Verify that the Fan LED on the fan module is green.
If the Fan LED is not lit, see the “Solving Problems at the Component Level”
section on page A-2 to determine whether the power supply is functioning
properly.
Step 2 If the Fan LED is red, the fan module is not seated in the backplane or has
malfunctioned.
a. Loosen the captive installation screws, remove the fan module, and reinstall
it to ensure that the fan module is seated properly.
b. Tighten all captive installation screws, and then restart the system.
If the Fan LED is still red, the system detects a fan module failure. Contact your
customer service representative for instructions.
Troubleshooting Switching and Services Modules
To isolate a problem with a module in slot 2, follow these steps:
Step 1 Verify that all Status LEDs are on.
If the status LEDs on the interface module or the slot 2 module are red or off, the
module might have shifted out of its slot.
Step 2 Reseat the module until both ejector levers are at 90 degrees to the rear of the
chassis.
Step 3 Tighten the captive installation screws at the left and right of the module front
panel.
Step 4 Restart the system.
If the Status LED on a module is orange, the module might be busy or disabled.
Refer to the Cisco MDS 9000 Family Configuration Guide to configure or enable
the interfaces. After the system re-initializes the interfaces, the Status LED on the
module should be green.
