Managing Serviceguard 12th Edition, March 2006

Understanding Serviceguard Software Components
Volume Managers for Data Storage
Chapter 3114
Figure 3-20 Physical Disks Within Shared Storage Units
Figure 3-21 shows the individual disks combined in a multiple disk
mirrored configuration.
Figure 3-21 Mirrored Physical Disks
Figure 3-22 shows the mirrors configured into LVM volume groups,
shown in the figure as /dev/vgpkgA and /dev/vgpkgB. The volume
groups are activated by Serviceguard packages for use by highly
available applications.