Troubleshooting
96-30065-001 Rev. A0
DataDirect Networks EF4024 FC RAID System Setup Guide | 38
Is a connected port Expansion Port Status LED off?
Answer
Possible reasons
Actions
No
System functioning properly. No action required.
Yes
The link is down.
• Check cable connections and reseat if necessary.
• Inspect cable for damage. Replace cable if necessary.
• Swap cables to determine if fault is caused by a defective
cable. Replace cable if necessary.
• In RAIDar, review the event logs for indicators of a specific
fault in a host data path component.
• Contact an authorized service provider for assistance.
• See Isolating a Controller Module Expansion Port
Connection Fault on page
40.
Is a connected port’s Network Port link status LED off?
Answer
Possible reasons
Actions
No
System functioning properly.
No action required.
Yes
The link is down.
Use standard networking troubleshooting procedures to
isolate faults on the network.
Is the power supply Input Power Source LED off?
Answer
Possible reasons
Actions
No
System functioning properly.
No action required.
Yes
The power supply is not
receiving adequate power.
• Verify that the power cord is properly connected, and check
the power source to which it connects.
• Verify that the power supply FRU is firmly locked into
position.
• Check the event log for specific information regarding the
fault.
• If the above action does not resolve the fault, isolate the
fault, and contact an authorized service provider for
assistance.
Is the Voltage/Fan Fault/Service Required LED amber?
Answer
Possible reasons
Actions
No
System functioning properly.
No action required.
Yes
The power supply unit or a fan
is operating at an unacceptable
voltage/RPM level, or has failed.
When isolating faults in the power supply, remember that
the fans in both modules receive power through a common
bus on the midplane, so if a power supply unit fails, the fans
continue to operate normally.
• Verify that the power supply FRU is firmly locked into
position.
• Verify that the power cable is connected to a power source.
• Verify that the power cable is connected to the enclosure’s
power supply unit.
