Managing Serviceguard Nineteenth Edition, Reprinted June 2011

IMPORTANT: The purpose of cmnotdisk.conf is to exclude specific devices, usually CD and
DVD drives, that Serviceguard does not recognize and which should not be probed. Make sure
you do not add a DEVICE_FILE entry in cmnotdisk.conf for any device that should be probed;
that is, disk devices being managed by LVM or LVM2. Excluding any such device will cause
cmquerycl to fail.
Setting Up and Running the Quorum Server
If you will be using a Quorum Server rather than a lock disk or LUN, the Quorum Server software
must be installed on a system other than the nodes on which your cluster will be running, and must
be running during cluster configuration.
For detailed discussion, recommendations, and instructions for installing, updating, configuring,
and running the Quorum Server, see HP Serviceguard Quorum Server Version A.04.00 Release
Notes at http:///www.hp.com/go/hpux-serviceguard-docs -> HP Quorum Server Software.
Creating the Storage Infrastructure and file systems with LVM, VxVM and CVM
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” (page 168).
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” (page 174)
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)” (page 190)
Do this after you configure the cluster.
• for Veritas Cluster Volume Manager, see “Creating the Storage Infrastructure with Veritas
Cluster Volume Manager (CVM)” (page 208)
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 how to configure disk storage using HP's Logical Volume Manager (LVM).
It covers the following tasks:
• “Creating Volume Groups” (page 169)
• “Creating Logical Volumes” (page 171)
• “Creating File Systems” (page 171)
• “Distributing Volume Groups to Other Nodes” (page 172)
• “Making Physical Volume Group Files Consistent” (page 173)
168 Building an HA Cluster Configuration