Managing Serviceguard 14th Edition, June 2007

Building an HA Cluster Configuration
Creating a Storage Infrastructure with Veritas Cluster File System (CFS)
Chapter 5 245
Creating a Storage Infrastructure with
Veritas Cluster File System (CFS)
NOTE CFS (and CVM - Cluster Volume Manager) are supported on some, but
not all current releases of HP-UX. Check the latest Release Notes for
your version of Serviceguard for up-to-date information
(http://www.docs.hp.com -> High Availability ->
Serviceguard).
In addition to configuring the cluster, you create the appropriate logical
volume infrastructure to provide access to data from different nodes.
This is done with Logical Volume Manager (LVM), Veritas Volume
Manager (VxVM), or Veritas Cluster Volume Manager (CVM). You can
also use a mixture of volume types, depending on your needs. LVM and
VxVM configuration are done before cluster configuration, and CVM
configuration is done after cluster configuration.
This section has information about configuring a cluster that uses the
Veritas cluster file system (CFS) with Veritas cluster volume manager
(CVM) 4.1 and later. The next section (“Creating the Storage
Infrastructure and Filesystems with Veritas Cluster Volume Manager
(CVM)” on page 256) has information about configuring the Veritas
Cluster Volume Manager (CVM) with other filesystems, not CFS. Both
solutions use 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.