HP Application Recovery Manager software A.06.10 Concepts guide (March 2008)

It is recommended to group the physical volumes of a volume group into physical
volume groups (PVGs) and specify the PVG-strict policy for the mirror creation.
With that, the mirrors of one logical volume will belong to different PVGs, which
helps avoid certain situations, such as mirroring a logical volume onto the same disk.
Figures Figure 29 on page 71 and Figure 31 on page 73 are examples of supported
LVM mirroring configurations on EVA:
Figure 29 Supported LVM mirroring configuration 1
All logical volumes in a volume group are specified as backup objects in a backup
specification. All logical volumes (with their extent distributions) are on different
physical volumes within a PVG.
Concepts guide 71