Managing Serviceguard Seventeenth Edition, First Reprint December 2009

3. If /etc/lvmpvg on ftsys10 contains entries for volume groups that do not
appear in /etc/lvmvpg.new, then copy all physical volume group entries for
that volume group to/etc/lvmvpg.new.
4. Adjust any physical volume names in /etc/lvmvpg.new to reflect their correct
names on ftsys10.
5. On ftsys10, copy /etc/lvmpvg to /etc/lvmpvg.old to create a backup.
Copy /etc/lvmvpg.new to /etc/lvmpvg on ftsys10.
Creating Additional Volume Groups The foregoing sections show in general how to
create volume groups and logical volumes for use with Serviceguard. Repeat the
procedure for as many volume groups as you need to create, substituting other volume
group names, logical volume names, and physical volume names. Pay close attention
to the disk device names, which can vary from one node to another.
Creating a Storage Infrastructure with 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 with Logical
Volume Manager (LVM), Veritas Volume Manager (VxVM), or Veritas Cluster Volume
Manager (CVM). You can also use a mixture of volume types, depending on your
needs. LVM and VxVM configuration are done before cluster configuration, and CVM
configuration is done after cluster configuration.
For a discussion of migration from LVM to VxVM storage, refer to Appendix G.
This section shows how to configure new storage using the command set of the Veritas
Volume Manager (VxVM). Once you have created the root disk group (described next),
you can use VxVM commands or the Storage Administrator GUI, VEA, to carry out
configuration tasks. For more information, see the Veritas Volume Manager
documentation posted at http://docs.hp.com -> 11i v3 -> VxVM (or -> 11i
v2 -> VxVM, depending on your HP-UX version).
Converting Disks from LVM to VxVM
You can use the vxvmconvert(1m) utility to convert LVM volume groups into VxVM
disk groups. Before you can do this, the volume group must be deactivated, which
means that any package that uses the volume group must be halted. Follow the
conversion procedures outlined in the Veritas Volume Manager Migration Guide for
your version of VxVM. Before you start, be sure to create a backup of each volume
group’s configuration with the vgcfgbackup command, and make a backup of the
data in the volume group. See “Migrating from LVM to VxVM Data Storage ” (page 437)
for more information about conversion.
Initializing Disks for VxVM
You need to initialize the physical disks that will be employed in VxVM disk groups.
To initialize a disk, log on to one node in the cluster, then use the vxdiskadm program
216 Building an HA Cluster Configuration