Managing Serviceguard Seventeenth Edition, First Reprint December 2009

Creating the Storage Infrastructure and Filesystems 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 210).
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 216)
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 237)
Do this after you configure the cluster.
• for Veritas Cluster Volume Manager, see “Creating the Storage Infrastructure with
Veritas Cluster Volume Manager (CVM)” (page 244)
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
NOTE: This procedure assumes you are using LVM rather than LVM 2.0. For more
information about LVM 2.0, see the white paper LVM 2.0 Volume Groups in HP-UX 11i
v3, which you can find on docs.hp.com under 11i v3 —> LVM Volume Manager.
The Event Monitoring Service HA Disk Monitor provides the capability to monitor the
health of LVM disks. If you intend to use this monitor for your mirrored disks, you
should configure them in physical volume groups. For more information, refer to the
manual Using High Availability Monitors (http://docs.hp.com -> High
210 Building an HA Cluster Configuration