LVM Version 2.0 Volume Groups in HP-UX 11i v3 (September 2008)

Figure 6
How to Configure the New Limits
Number of logical volumes or physical volumes in a volume group
There is nothing to do to on a 2.x volume group (at creation time or later) to reach the new limits for the number of
physical volumes or logical volumes (511 for 2.0 and 2047 for 2.1). As indicated previously, version 2.x volume
groups are provisioned in a way that LVM can always add physical volumes or logical volumes until the maximum
capacity of the volume group is reached. Add physical volumes (vgextend) and logical volumes (lvcreate) as
needed.
Maximum size of the volume group
The size limit is displayed in Figure 2 in the “How to Pick an Extent Size” section. You set the maximum size of the
volume group when you create it (vgcreate option –S). If the volume group is not provisioned sufficiently, and you
want to go beyond the volume group maximum size that was provisioned, with March 2008 HP-UX 11i v3
release, you must copy the data to a different, larger volume group.
For example, if you provision a volume group for 32 TB with an extent size of 4 MB (vgcreate –v 2.0 –s 4 –S 32t
myvg /dev/disk/disk149), you cannot grow the volume group up to the limit allowed by 2.0, that is 128 MB for
4 MB extent. You can only grow the volume group up to 32 TB.
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