Front Panel Diagnostics
Front Panel Diagnostics
Diagnostic Front
Panel Displays
If you suspect a switch or a Fibre Channel port failure, a visual check
of the color LED Indicators, shown in Figure 4-1, determines the
status of each port. See Status and Activity Indicators on page 4-4 for
additional information
Figure 4-1 LED Indicators
Isolating a System
Fault
Various loopback paths are built into the switch hardware for
diagnostic purposes. A loopback path test within the switch verifies
the proper internal Fibre Channel port logic functions and the paths
between the interfaces and central memory.
The switch’s diagnostics also support external loops which include
GBIC modules in cross port configurations. These port-to-port
diagnostics allow checking installed fiber cables and port fault
isolation.
Removing Power
Error messages are stored in RAM and are lost when power is removed from
the switch. Access the error message log to view and note any error messages
before removing power from the switch.
LED Indicators
Power Indicator LED
