Copy a LVS logical volume between volume groups

copy_lvs.sh

#!/bin/bash

export mount_point=$1
if [[ -z "$mount_point" ]]; then
  echo "pass in drive name as first argument";
  exit 1;
fi

# Sanity check that lv is not used
lvuses="$( lvdisplay -c /dev/vg0/${mount_point} | cut -d ':' -f 6 )"
if [ $lvuses -gt 0 ]; then 
  echo "lv $mount_point is in use"
  exit 1 ; 
fi

#obtain lv size (in sectors)
export lvsize="$( lvdisplay -c /dev/vg0/${mount_point} | cut -d ':' -f 7 )"
echo "lvsize ${lvsize}"
#create destination
lvcreate -L "${lvsize}s" vg1 -n ${mount_point} || exit 1
echo "lvcreated /dev/vg1/${mount_point}"
# copy
echo "starting copy 
time dd if=/dev/vg0/${mount_point} of=/dev/vg1/${mount_point}

echo "DONE!!"