Managing Serviceguard Nineteenth Edition, Reprinted June 2011

• That each node is connected to each heartbeat network.
• That all heartbeat networks are of the same type of LAN.
• That network interface device files specified are valid LAN device files.
• That VOLUME_GROUP entries are marked as cluster-aware.
If the cluster is online, the check also verifies that all the conditions for the specific change in
configuration have been met.
NOTE: Using the -k option means that cmcheckconf only checks disk connectivity to the LVM
disks that are identified in the ASCII file. Omitting the -k option (the default behavior) means that
cmcheckconf tests the connectivity of all LVM disks on all nodes. Using -k can result in significantly
faster operation of the command.
For more information, see the manpage for cmcheckconf (1m) and “Checking Cluster
Components” (page 261).
Distributing the Binary Configuration File
After specifying all cluster parameters, apply the configuration. This action distributes the binary
configuration file to all the nodes in the cluster. HP recommends doing this separately before you
configure packages (as described in the next chapter) so you can verify the cluster lock, heartbeat
networks, and other cluster-level operations by using the cmviewcl command on the running
cluster. Before distributing the configuration, ensure that your security files permit copying among
the cluster nodes. See “Preparing Your Systems” at the beginning of this chapter.
Use the following steps to generate the binary configuration file and distribute the configuration
to all nodes in the cluster:
• Activate the cluster lock volume group so that the lock disk can be initialized:
vgchange -a y /dev/vglock
• Generate the binary configuration file and distribute it:
cmapplyconf -k -v -C /etc/cmcluster/clust1.conf
or
cmapplyconf -k -v -C /etc/cmcluster/clust1.ascii
NOTE: Using the -k option means that cmapplyconf only checks disk connectivity to the
LVM disks that are identified in the ASCII file. Omitting the -k option (the default behavior)
means that cmapplyconf tests the connectivity of all LVM disks on all nodes. Using -k can
result in significantly faster operation of the command.
• Deactivate the cluster lock volume group.
vgchange -a n /dev/vglock
The cmapplyconf command creates a binary version of the cluster configuration file and distributes
it to all nodes in the cluster. This action ensures that the contents of the file are consistent across
all nodes. Note that the cmapplyconf command does not distribute the ASCII configuration file.
Configuring the Cluster 189