Managing HP Serviceguard for Linux, Seventh Edition, July 2007

Troubleshooting Your Cluster
Solving Problems
Chapter 8 301
Solving Problems
Problems with Serviceguard may be of several types. The following is a
list of common categories of problem:
• Serviceguard Command Hangs.
• Cluster Re-formations.
• System Administration Errors.
• Package Control Script Hangs.
• Package Movement Errors.
• Node and Network Failures.
• Quorum Server Messages.
Serviceguard Command Hangs
Many Serviceguard commands, including cmviewcl, depend on name
resolution services to look up the addresses of cluster nodes. When name
services are not available (for example, if a name server is down),
Serviceguard commands may hang, or may return a network-related
error message. If this happens, use the host command on each cluster
node to see whether name resolution is correct. For example:
host ftsys9
ftsys9.cup.hp.com has address 15.13.172.229
If the output of this command does not include the correct IP address of
the node, then check your name resolution services further.