Managing Serviceguard Fifteenth Edition, reprinted May 2008

Troubleshooting Your Cluster
Solving Problems
Chapter 8 433
Problems with Cluster File System (CFS)
If you have a system multi-node package for Veritas CFS, you may not be
able to start the cluster until SG-CFS-pkg starts. Check SG-CFS-pkg.log
for errors.
You will have trouble running the cluster if there is a discrepancy
between the CFS cluster and the Serviceguard cluster. To check, enter
gabconfig -a command.
The ports that must be up are:
1. a - which is llt, gab
2. b - vxfen
3. v w - cvm
4. f - cfs
Any form of the mount command (for example, mount -o cluster,
dbed_chkptmount, or sfrac_chkptmount) other than cfsmount or
cfsumount in a HP Serviceguard Storage Management Suite
environment with CFS should be done with caution. These non-cfs
commands could cause conflicts with subsequent command operations on
the file system or Serviceguard packages. Use of these other forms of
mount will not create an appropriate multi-node package which means
that the cluster packages are not aware of the file system changes.
Also check the syslog file for information.
NOTE Check the Serviceguard, SGeRAC, and SMS Compatibility and Feature
Matrix and the latest Release Notes for your version of Serviceguard for
up-to-date information about support for CFS
(http://www.docs.hp.com -> High Availability - > Serviceguard).
Problems with VxVM Disk Groups
This section describes some approaches to solving problems that may
occur with VxVM disk groups in a cluster environment. For most
problems, it is helpful to use the vxdg list command to display the disk
groups currently imported on a specific node. Also, you should consult
the package control script log files for messages associated with
importing and deporting disk groups on particular nodes.