Managing Serviceguard Fifteenth Edition, reprinted May 2008

Troubleshooting Your Cluster
Troubleshooting Approaches
Chapter 8426
cmquerycl -v -C /etc/cmcluster/verify.ascii -n ftsys9 -n
ftsys10
cmcheckconf -v -C /etc/cmcluster/verify.ascii
The cmcheckconf command checks:
• The network addresses and connections.
• The cluster lock disk connectivity.
• The validity of configuration parameters of the cluster and packages
for:
— The uniqueness of names.
— The existence and permission of scripts.
It doesn’t check:
• The correct setup of the power circuits.
• The correctness of the package configuration script.
Using the cmviewconf Command
cmviewconf allows you to examine the binary cluster configuration file,
even when the cluster is not running. The command displays the content
of this file on the node where you run the command.
Reviewing the LAN Configuration
The following networking commands can be used to diagnose problems:
• netstat -in can be used to examine the LAN configuration. This
command lists all IP addresses assigned to each LAN interface card.
• lanscan can also be used to examine the LAN configuration. This
command lists the MAC addresses and status of all LAN interface
cards on the node.
• arp -a can be used to check the arp tables.
• landiag is useful to display, diagnose, and reset LAN card
information.
• linkloop verifies the communication between LAN cards at MAC
address levels. For example, if you enter
linkloop -i4 0x08000993AB72