Managing Serviceguard 14th Edition, June 2007

Planning and Documenting an HA Cluster
Package Configuration Planning
Chapter 4 167
NOTE Do not use /etc/fstab to mount file systems that are used by
Serviceguard packages.
Planning Veritas Cluster Volume Manager (CVM) and
Cluster File System (CFS)
NOTE CVM and CFS 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).
For a failover package that uses the CVM or CFS, you configure system
multi-node packages to handle the volume groups and file systems.
CAUTION Serviceguard manages Veritas processes, specifically gab and LLT,
through system multi-node packages. As a result, the Veritas
administration commands such as gabconfig, llthosts, and lltconfig
should only be used in display mode, for example gabconfig -a. You
could crash nodes or the entire cluster if you use Veritas commands such
as the gab* or llt* commands to configure these components or affect
their runtime behavior.
CVM Version 3.5
Veritas Cluster Volume Manager 3.5 uses the system multi-node package
VxVM-CVM-pkg to manage the cluster’s volumes.
You configure one heartbeat network for CVM 3.5 and VxVM-CVM-pkg.
Multiple heartbeats are not supported. Using APA, Infiniband, or VLAN
interfaces as the heartbeat network is not supported.
CVM 4.1 and later without CFS Veritas Cluster Volume Manager 4.1
and later uses the system multi-node package SG-CFS-pkg to manage
the cluster’s volumes.