Managing Serviceguard Eighteenth Edition, September 2010

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: Check the Serviceguard/SGeRAC/SMS/Serviceguard Manager Plug-in Compatibility
and Feature Matrix and the latest Release Notes for your version of Serviceguard for
up-to-date information on support for CVM and CFS: www.hp.com/go/
hpux-serviceguard-docs.
For a failover package that uses 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 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.
CVM 4.1 and later requires you to configure multiple heartbeat networks, or a single
heartbeat with a standby. Using APA, Infiniband, or VLAN interfaces as the heartbeat
network is not supported.
CVM 4.1 and later with CFS
CFS (Veritas Cluster File System) is supported for use with Veritas Cluster Volume
Manager Version 4.1 and later.
The system multi-node package SG-CFS-pkg manages the cluster’s volumes. Two
sets of multi-node packages are also used: the CFS mount packages, SG-CFS-MP-id#,
and the CFS disk group packages, SG-CFS-DG-id#. Create the multi-node packages
with the cfs family of commands; do not edit the configuration file.
CVM 4.1 and later requires you to configure multiple heartbeat networks, or a single
heartbeat with a standby. Using APA, Infiniband, or VLAN interfaces as the heartbeat
network is not supported.
You create a chain of package dependencies for application failover packages and the
non-failover packages:
170 Planning and Documenting an HA Cluster