Managing Serviceguard Fifteenth Edition, reprinted May 2008

Building an HA Cluster Configuration
Configuring the Cluster
Chapter 5252
many of the same commands, but the processes are in a slightly different
order. Another difference is that when you use CFS, Serviceguard creates
packages to manage the disk groups and mount points so you do not
activate CFS disk groups or CFS mount points in your application
packages.
Refer to the Serviceguard man pages for more information about the
commands cfscluster, cfsdgadm, cfsmntadm, cfsmount and
cfsumount and cmgetpkgenv. Information is also in the documentation
for HP Serviceguard Storage Management Suite posted at http://
docs.hp.com -> High Availability -> HP Serviceguard Storage
Management Suite.
Preparing the Cluster and the System Multi-node Package
1. First, be sure the cluster is running:
cmviewcl
2. If it is not, start it:
cmruncl
3. If you have not initialized your disk groups, or if you have an old
install that needs to be re-initialized, use the vxinstall command
to initialize VxVM/CVM disk groups. See “Initializing the Veritas
Volume Manager” on page 263.
4. The Veritas cluster volumes are managed by a Serviceguard-supplied
system multi-node package which runs on all nodes at once, and
cannot failover. In CVM 4.1 and later, which is required for the
Cluster File System, Serviceguard supplies the SG-CFS-pkg
template. (In CVM 3.5, Serviceguard supplies the VxVM-CVM-pkg
template)
The package for CVM 4.1 and later has the following responsibilities:
• Maintain Veritas configuration files /etc/llttab,
/etc/llthosts, /etc/gabtab
• Launch required services: cmvxd, cmvxpingd, vxfsckd
• Start/halt Veritas processes in the proper order: llt, gab, vxfen,
odm, cvm, cfs