Managing Serviceguard Fifteenth Edition, reprinted May 2008

Building an HA Cluster Configuration
Preparing Your Systems
Chapter 5 215
Creating the Storage Infrastructure and Filesystems
with LVM and VxVM
In addition to configuring the cluster, you create the appropriate logical
volume infrastructure to provide access to data from different nodes.
This is done several ways:
• for Logical Volume Manager, see “Creating a Storage Infrastructure
with LVM” on page 215.
Do this before you configure the cluster if you use a lock disk;
otherwise it can be done before or after.
• for Veritas Volume Manager, see“Creating a Storage Infrastructure
with VxVM” on page 222
Do this before you configure the cluster if you use a lock disk;
otherwise it can be done before or after.
• for Veritas Cluster File System with CVM, see “Creating a Storage
Infrastructure with Veritas Cluster File System (CFS)” on page 251
Do this after you configure the cluster.
• for Veritas Cluster Volume Manager (on systems that support it), see
“Creating the Storage Infrastructure with Veritas Cluster Volume
Manager (CVM)” on page 262
Do this after you configure the cluster.
You can also use a mixture of volume types, depending on your needs.
NOTE If you are configuring volume groups that use mass storage on HP’s HA
disk arrays, you should use redundant I/O channels from each node,
connecting them to separate ports on the array. As of HP-UX 11i v3, the
I/O subsystem performs load balancing and multipathing automatically.
Creating a Storage Infrastructure with LVM
This section describes storage configuration with LVM. It includes
procedures for the following:
• Creating Volume Groups for Mirrored Individual Disks
• Distributing Volume Groups to Other Nodes