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A-3
Cisco MDS 9216 Switch Hardware Installation Guide
78-16165-01
AppendixA Troubleshooting
Identifying Startup Problems
Note If you purchased this product through a Cisco reseller, contact the reseller
directly for technical support. If you purchased this product directly from
Cisco, contact Cisco Technical Support at this URL:
http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml.
•Supervisor module—The supervisor module contains the system operating
software, so check your supervisor module if you have trouble with the
system software. A Status LED indicates whether the supervisor module can
initialize the module in slot 2, if present.
•Switching or services module—A Status LED on the module indicates if it
was initialized by the supervisor module. A module that is partially installed
in the backplane can cause the system to halt.
Identifying Startup Problems
LEDs indicate all system states in the startup sequence. By checking the LEDs,
you can determine when and where the system failed in the startup sequence.
To identify startup problems, follow these steps:
Step1 Turn on the power supply by pressing the switch on (|). You should immediately
hear the system fan module begin to operate. If you do not, see the
“Troubleshooting the Power Supplies” section on pageA-5. If you determine that
the power supplies are functioning normally and the fan module is faulty, contact
your customer service representative. If the system fan module does not function
properly at initial startup, there are no installation adjustments that you can make.
To replace the fan module, see the “Removing and Installing the Fan Module”
section on page 2-31.
Step2 Verify that the LEDs on the interface module are on as follows:
•The Status LED flashes orange once and stays orange during diagnostic boot
tests. It turns green when the module is operational (online). If the system
software is unable to start up, this LED stays orange.
•The System LED turns green, indicating that all chassis environmental
monitors are reporting that the system is operational. If one (or more)
environmental monitors reports a problem, the System L ED is ora nge or red .