Managing Serviceguard Eighteenth Edition, September 2010

The ports that must be up are:
1. a — llt, gab
2. b — vxfen
3. v w — cvm
4. f — cfs
You can also check the syslog file for information.
CAUTION: Do not use the HP-UX mount and umount commands in a CFS cluster;
use cfsmount or cfsumount. Commands such asmount -o cluster,
dbed_chkptmount, or sfrac_chkptmount could cause conflicts with subsequent
command operations on the file system or Serviceguard packages. Non-CFS mount
commands will not create an appropriate multi-node package, with the result that the
cluster packages are not aware of the file system changes.
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.
Force Import and Deport After Node Failure
After certain failures, packages configured with VxVM disk groups will fail to start,
logging an error such as the following in the package log file:
vxdg: Error dg_01 may still be imported on ftsys9
ERROR: Function check_dg failed
This can happen if a package is running on a node which then fails before the package
control script can deport the disk group. In these cases, the host name of the node that
had failed is still written on the disk group header.
When the package starts up on another node in the cluster, a series of messages is
printed in the package log file
Follow the instructions in the messages to use the force import option (-C) to allow the
current node to import the disk group. Then deport the disk group, after which it can
be used again by the package. Example:
vxdg -tfC import dg_01
vxdg deport dg_01
The force import will clear the host name currently written on the disks in the disk
group, after which you can deport the disk group without error so it can then be
imported by a package running on a different node.
Solving Problems 419