See vgimportclone.sh in 2.02.46 (should work fine with plenty of
earlier versions too).
NAME
vgimportclone - import and rename duplicated volume group (e.g. a
hardware snapshot)
SYNOPSIS
vgimportclone [-n|--basevgname VolumeGroupName] [-i|--import] Physi-
calVolume [PhysicalVolume...]
DESCRIPTION
vgimportclone is used to import a duplicated VG (e.g. hardware snap-
shot). Duplicate VG(s) and PV(s) are not able to be used until they
are made to coexist with the origin VG(s) and PV(s). vgimportclone
renames the VG associated with the specified PV(s) and changes the
associated VG and PV UUIDs.
...
Alasdair
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