User`s guide

Table Of Contents
FI0054601-00 C 5-1
5 Diagnostics and
Troubleshooting
Diagnostic information about the router is available through the chassis LEDs and
the port LEDs. Diagnostic information is also available through the SANsurfer
iSCSI/FC Router Manager and CLI event logs and error displays. This section
provides the following diagnostic information:
Chassis Diagnostics (this page)
Power-On Self-Test Diagnostics (see page 5-2)
LED Blink Patterns (see page 5-3)
This section also describes how to use maintenance mode to recover a disabled
router (see page 5-5).
Chassis Diagnostics
The chassis LEDs show chassis diagnostics as shown in Figure 5-1.
Figure 5-1 Chassis Diagnostic LEDs
This section describes the following conditions:
Input Power LED is Off (see page 5-2)
System Fault LED is On (see page 5-2)