a collection of one or more physical volumes
a collection of physical volumes that provide storage space, measured in extents
a group of volumes that have some common physical location or characteristic, such as being in the same library, at the same offsite location, having the same media density, or the like
an aggregation of one or more physical volumes created by concatenating multiple physical volumes to create one large virtual volume
A collection of disks, treated as one large storage area; a single storage area that can be split up into several independent filesystems.
A set of one or more physical volumes from which space can be allocated to one or more logical volumes. A collection of 1 to 32 physical volumes (read-write fixed-disk drives) of varying size and type.
In LVM, a set of physical volumes such that logical volumes can be defined within the volume group for user access. A volume group can be activated by only one node at a time unless you are using MC/LockManager. MC/ServiceGuard can activate a volume group when it starts a package. A given disk can belong to only one volume group. A logical volume can belong to only one volume group.
Volume Group (VG) is the highest level abstraction used within the Logical Volume Manager (LVM). It gathers together a collection of Logical Volumes (LV) and Physical Volumes (PV) into one administrative unit.