Shell Script to create mirrors of Physical Volumes

#!/bin/sh
#******* DISK:
# create LVM mirrors for VolGroup
for x in `ls /dev/VolGroup`; do
        lvconvert -m 1 /dev/VolGroup/$x `pvdisplay | grep "PV Name" | awk '{printf $3" "}'` &
        if [ $? -ne 0 ]; then logError DISK: $x; fi
done