McDATA® 4Gb SAN Switch for HP p-Class BladeSystem Installation Guide (AA-RW1XC-TE, November 2006)

McDATA® 4Gb SAN Switch for HP p-Class BladeSystem installation guide 37
4 Diagnostics and troubleshooting
Diagnostic information about the switch is available through the switch LEDs and the port LEDs. Diagnostic
information is also available through the McDATA Web Server and CLI event logs and error displays. This
section describes the following types of diagnostics:
• ”Switch diagnostics” on page 37 describes the Power LED and System Fault LED indications.
• ”Power-on Self Test diagnostics” on page 38 describe the Heartbeat LED and the port Logged-in LED
indications.
• ”Recovering a switch using maintenance mode” on page 43 describes how to use maintenance mode
to recover a disabled switch.
Switch diagnostics
Switch diagnostics are indicated by the switch LEDs as shown in Figure 12.
Figure 12 Switch LED diagnostics
The following conditions are described in this section:
• Power LED is extinguished, page 37
• System Fault LED is illuminated, page 37
Power LED is extinguished
The Power LED is illuminated to indicate that the switch logic circuitry is receiving proper voltages. If the
Power LED is not illuminated, contact your authorized maintenance provider.
System Fault LED is illuminated
The System Fault LED is illuminated to indicate that the switch logic circuitry is overheating, or that a POST
error has occurred. The System Fault LED is always accompanied by a Heartbeat LED error blink code. If
the System Fault LED is illuminated, identify the Heartbeat LED error blink pattern and take the necessary
actions as described in ”Heartbeat LED blink patterns” on page 38. The System Fault LED is also
illuminated on an internal firmware error, corrupt configuration, or voltage fault (input power never is
turned off once the switch is powered on even during a voltage fault).
Heartbeat LED
System Fault LED
Power LED