Managing Serviceguard 13th Edition, February 2007

Troubleshooting Your Cluster
Troubleshooting Approaches
Chapter 8 363
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
you should see displayed the following message:
Link Connectivity to LAN station: 0x08000993AB72 OK
file systems mount command
LVM configuration /etc/lvmtab file
LVM physical volume group
data
/etc/lvmpvg file
link level connectivity for all
links
linkloop command
binary configuration file cmviewconf command
Table 8-1 Data Displayed by the cmscancl Command (Continued)
Description Source of Data