Managing Serviceguard 13th Edition, February 2007

Building an HA Cluster Configuration
Creating the Storage Infrastructure and Filesystems with VERITAS Cluster Volume Manager (CVM)
Chapter 5 243
Creating the Storage Infrastructure and
Filesystems with VERITAS Cluster Volume
Manager (CVM)
NOTE CVM (and CFS - Cluster File System) 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 can be done with Logical Volume Manager (LVM), VERITAS
Volume Manager (VxVM), or VERITAS Cluster Volume Manager (CVM)
before cluster configuration. It can also be done with CVM configuration
(with or without Cluster File System) after cluster configuration. You can
also use a mixture of volume types, depending on your needs.
See “Migrating from LVM to VxVM Data Storage” on page 449 for a
discussion of migration.
This section has information about configuring the VERITAS Cluster
Volume Manager 3.5 and 4.1 without VERITAS CFS (Cluster File
System). The configuration may be needed to set up raw devices for
Serviceguard Extension for RAC.
The previous section (“Creating a Storage Infrastructure with VERITAS
Cluster File System (CFS)” on page 231) has information about
configuring a cluster with CFS and with CVM 4.1.
Both solutions - with and without CFS - use many of the same
commands, but the processes are in a slightly different order.
Before starting, make sure the directory in which VxVM commands are
stored (/usr/lib/vxvm/bin) is in your path. Once you have created the
root disk group with vxinstall, you can use VxVM commands or the
VERITAS Storage Administrator GUI, VEA, to carry out configuration
tasks. Instructions for running vxinstall are in the VERITAS
Installation Guide for your version. For more information, refer to the
VERITAS Volume Manager Administrator’s Guide for your version.