Managing Serviceguard 14th Edition, June 2007

Building an HA Cluster Configuration

Creating the Storage Infrastructure and Filesystems with Veritas Cluster Volume Manager (CVM)

Chapter 5256

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 495 for a

discussion of migration.

This section has information about configuring the Veritas Cluster

Volume Manager 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 245) has information about

configuring a cluster with CFS.

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.