Problem-Solving Tips - Cisco 7541 Hardware Installation Manual

Chapter 6 Troubleshooting the System Hardware
Check the system LEDs for the power supplies (see
"Introducing the Cisco Wide Area Virtualization Engine 7541, 7571, and 8541"). If the LEDs indicate
the power supplies are working correctly, follow these steps:
Step 1
Power down the appliance.
Step 2
Be sure the appliance is cabled correctly.
Step 3
Remove or disconnect the following devices (one at a time) until you find the failure (power up the
appliance and reconfigure it each time):
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•
•
•
Note
Step 4
Power up the appliance. If the problem remains, contact Cisco TAC.
Note
Note

Problem-Solving Tips

Because of the variety of hardware and software combinations that can be encountered, use the following
information to assist you in identifying the problems. If possible, have this information available when
requesting technical assistance.
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•
•
•
Any non-Cisco devices
Surge suppressor device (on the appliance)
Each Cisco Interface Module
Disk drives
Any component that is internal to the appliance must be serviced by trained and qualified
personnel. Contact your customer service representative.
If the problem goes away when you remove a device from the system, and replacing that device
does not correct the problem, contact Cisco TAC.
If you suspect a networking problem and all the system tests pass, check if there is a network
cabling problem external to the system.
Machine type and model
Hardware upgrades
Failure symptom
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What, when, where; single or multiple systems?
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Is the failure repeatable?
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Has this configuration ever worked?
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If it has been working, what changes were made before it failed?
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Is this the original reported failure?
Hardware configuration
Cisco Wide Area Virtualization Engine 7541, 7571, and 8541 Hardware Installation Guide
Back Panel Components and LEDs
Problem-Solving Tips
in Chapter 1,
6-5