Dell PowerConnect B-DCX-4S Backbone Hardware Reference Manual page 123

TABLE 26
Troubleshooting the PowerConnect B-DCX-4S (Continued)
Issue
LEDs on one or more components
are changing rapidly or do not
indicate a healthy state.
None of the LEDs on a component
are on.
CP blades are failing over frequently.
One or more port blades have either
shut down or failed POST as
indicated by the error log.
PowerConnect B-DCX-4S Backbone Hardware Reference Manual
53-1001808-01
Possible cause
The PowerConnect B-DCX-4S might be
booting or running POST.
Beaconing might be on for the entire
PowerConnect B-DCX-4S or for individual
components.
Individual components might have failed.
Pins on the components might be damaged.
Component might not be seated correctly.
Component might have failed.
A third-party application has a memory leak.
There is excessive serial port activity.
CP blade is attached to an Ethernet with high
traffic loads.
Chassis is overheated.
Blades might be overheated.
Blades might be faulty.
Pins on the blade or the backplane might be
damaged.
Troubleshooting
Recommended action
Verify that boot and POST are complete. The
PowerConnect B-DCX-4S requires a minimum of 3
minutes, usually, after power-on to complete POST.
Determine whether beaconing is on by typing the
switchShow command and reviewing the output for
the status of switch beaconing and blade beaconing
See the LED tables in Chapter 4, "Monitor System
Components" for interpretation and recommended
actions.
Remove the component from the chassis and
inspect the pins on the component and inside the
chassis. Do not reinstall if pins on either component
are damaged, as this could damage pins on other
components. Replace the parts as required.
Ensure that the PowerConnect B-DCX-4S has power
and the component is firmly seated. If the problem
continues, enter the sensorShow command to
determine the component status. If the component
is a CP blade or port blade, enter the slotShow
command to determine the status.
Replace the component as necessary.
Check application for memory leaks.
Ensure that the serial port activity remains below the
specified level.
Ensure that the Ethernet traffic remains below the
specified level
Enter the tempshow and sensorShow commands to
check internal temperature. If components are
overheating, shut down port blades as necessary to
return the temperature to the operating range.
Enter the sensorShow command to check the
internal temperature readings. If components are
overheating, shut down port blades as necessary to
return the temperature readings to the operating
ranges.
Enter the slotShow command to determine status.
For more information, enter the diagDisablePost
command; then, use the slotPowerOff [slot number]
and slotPowerOn [slot number] command. Resolve
the source of the problem or replace the blade as
required.
Remove the blade from the chassis and inspect the
pins on the blade and on the backplane inside the
slot. Do not reinstall if the pins on either component
are damaged, as this could damage pins on other
components. Replace the components as required.
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