VERITAS Volume Manager 3.5 Migration Guide (September 2004)

Glossary
VGRA
Glossary
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VGRA The Volume Group Reserved Area (VGRA) is
a region on an LVM disk that holds LVM
configuration information and is at a fixed location.
The location of this fixed location depends upon
whether the disk is a boot disk or a non-boot disk.
For boot disks, the VGRA starts at sector 2144. For
non-boot disks, the VGRA starts at sector 128.
volume group The collective identity of a set of
physical volumes, which provide disk storage for the
logical volumes. A set of physical volumes whose
space can be combined and logically divided up into
logical volumes. Only logical volumes and physical
volumes that are a part of a volume group can map
together, a physical volume can belong to only one
volume group.