HP Fabric Clustering System HP-UX Administrator's Guide, March 2008

7 Monitoring and Troubleshooting
This chapter discusses monitoring and troubleshooting your HP Fabric Clustering System. The
HP-UX Host and HP Fabric Switch each have a unique set of tools for monitoring and
troubleshooting their respective components within the HP Fabric Clustering System. This
chapter contains the following sections:
• “Diagnosing Problems”
• “Monitoring and Troubleshooting the HP-UX Host”
• “Monitoring and Troubleshooting the Switch”
Diagnosing Problems
This section provides useful guidelines to determine which component within your HP Fabric
Clustering System is at fault. Follow the LED descriptions to determine the faulty component,
and then proceed to the appropriate component troubleshooting section.
The power supply, system, and fan LEDs are located on the front of the HP Fabric Switch. The
back contains HP Fabric Cluster Connection LEDs, Ethernet Management Port LEDs, and
duplicated System Status LED.
• “LED Color, Behavior, and Meaning”
— “HP Fabric Switch Cluster Connection LEDs”
— “HP Fabric Switch System Status”
— “Power Supply Troubleshooting”
— “HP Fabric HCA Connection LEDs”
— “Ethernet Management Port LEDs”
• “Determining Whether the HCA or Cable is Faulty”
• “Determining if the Switch is Faulty”
• “Next Steps”
Diagnosing Problems 109