59225-00 B 5-1
Section 5
Diagnostics/Troubleshooting
Diagnostic information about the switch is available through the chassis LEDs and
the port LEDs. Diagnostic information is also available through the SANsurfer
Switch Manager and CLI event logs and error displays. This section describes the
following types of diagnostics:
Chassis Diagnostics describes the Input Power LED and System Fault LED
indications.
Power-On Self Test Diagnostics describe the Heartbeat LED and the port
Logged-In LED indications.
This section also describes how to use maintenance mode to recover a disabled
switch.
5.1
Chassis Diagnostics
Chassis diagnostics are indicated by the chassis LEDs as shown in Figure 5-1.
Figure 5-1. Chassis LEDs
The following conditions are described:
Input Power LED Is Extinguished
System Fault LED Is Illuminated
L A L A
L A L A L A
5 6 7 8 9
System Fault LED
(Amber)
Heartbeat LED
(Green)
Input Power LED
(Green)
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