Managing Serviceguard 12th Edition, March 2006

Building an HA Cluster Configuration
Creating the Storage Infrastructure and Filesystems with LVM and VxVM
Chapter 5220
NOTE These commands make the disk and its data unusable by LVM, and
allow it to be initialized by VxVM. (The commands should only be used if
you have previously used the disk with LVM and do not want to save the
data on it.)
You can remove LVM header data from the disk as in the following
example (note that all data on the disk will be erased):
# pvremove /dev/rdsk/c0t3d2
Then, use the vxdiskadm program to initialize multiple disks for VxVM,
or use the vxdisksetup command to initialize one disk at a time, as in
the following example:
# /usr/lib/vxvm/bin/vxdisksetup -i c0t3d2
Creating Disk Groups
Use vxdiskadm, or use the vxdg command, to create disk groups, as in
the following example:
# vxdg init logdata c0t3d2
Verify the configuration with the following command:
# vxdg list
NAME STATE ID
rootdg enabled 971995699.1025.node1
logdata enabled 972078742.1084.node1
Creating Volumes
Use the vxassist command to create logical volumes. The following is
an example:
# vxassist -g logdata make log_files 1024m
This command creates a 1024 MB volume named
log_files in a disk
group named logdata. The volume can be referenced with the block
device file /dev/vx/dsk/logdata/log_files or the raw (character)
device file /dev/vx/rdsk/logdata/log_files. Verify the configuration
with the following command: