lvm-backup.sh

#!/bin/bash

LVS="lv_os_win10"
LVS_TAR="lv_data lv_os_arch"
TARGET="/mnt/data/backup"

for LV in $LVS
do
        echo creating snapshot $LV
        lvcreate -L50G -s -n backup_$LV /dev/vg/$LV || continue

        echo backup
        dd if=/dev/vg/backup_$LV bs=1024 | pv -s `lvs /dev/vg/$LV -o LV_SIZE --noheadings --units b --nosuffix` | pigz -c -9 > $TARGET/$LV.gz

        echo removing snapshot
        lvremove /dev/vg/backup_$LV

        echo -------------------------------------------------------
done

for LV in $LVS_TAR
do
        echo creating snapshot $LV
        lvcreate -L50G -s -n backup_$LV /dev/vg/$LV || continue

        echo mounting snapshoot
        mkdir -p $TARGET/$LV
        mount /dev/vg/backup_$LV $TARGET/$LV

        echo backup
        tar cf - $TARGET/$LV -P | pv -s $(du -sb $TARGET/$LV | awk '{print $1}') | pigz -c -9 > $TARGET/$LV.gz

        echo removing snapshot
        umount $TARGET/$LV
        lvremove /dev/vg/backup_$LV

        echo -------------------------------------------------------
done