Identifying Startup Problems; Troubleshooting The Power Subsystem - Cisco SCE8000 GBE Installation And Configuration Manual

Chapter 8 Troubleshooting

Identifying Startup Problems

Startup problems are commonly due to the source power or to a poor cable connection.
When you start up the Cisco SCE8000 GBE platform for the first time, you should observe the startup
sequence described in
more detailed description of the normal startup sequence and describes the steps to take if the system
does not perform that sequence as expected. LEDs indicate all system states in the startup sequence. By
checking the state of the LEDs, you can determine when and where the system failed in the startup
sequence. Use the following descriptions to isolate the problem to a subsystem, and then proceed to the
appropriate sections to try to resolve the problem.
When you start up the system by turning on the power supply switch, the following should occur:
•
•

Troubleshooting the Power Subsystem

Check
SCE8000 GBE platform with redundant power supply units, it is unlikely that the device will not start
at all. However, at startup it should be verified that both power supply units are operational, and therefore
the following steps should be followed if the Power LED on the front panel remains unlit when the Cisco
SCE8000 GBE platform is powered up.
If the system powers off due to an environmental shutdown, wait at least one minute before manually
Note
rebooting the system, or it will pause indefinitely.
Table 8-5 Troubleshooting the Power Subsystem
Symptom
Power LED on the front
panel and LEDs on the
power supply unit are not lit,
or do not remain lit
continuously.
OL-19897-02
Starting the Cisco SCE8000 GBE Platform, page
You should immediately hear the fans operating.
If the Status LED is flashing orange, indicating a warning state, check the user log:
At the prompt, type: more user log
If any of the following warning messages appear, and the root cause is not obvious and easily solved
(such as obstruction of external air-flow) turn the Cisco SCE8000 GBE platform off and call
technical support.
voltage problem
–
– fans problem
abnormal raise in interior temperature
–
Table 8-5 to help isolate a problem in the power subsystem. In the normally configured Cisco
Possible Cause
Power cable not fully seated at system.
Power cable not fully seated at source.
Power source is faulty.
Possible Solution
Turn the power switch to the off position and reseat
the power cable in the system.
Turn the switch to the off position and reseat the
power cable at the power source.
Turn the switch to the off position, connect the
power cable to another power source, if available,
and turn the switch back on.
Cisco SCE8000 GBE Installation and Configuration Guide
Troubleshooting Overview
7-1. This section contains a
8-7