random/restore_vms at master · ciscon/random · GitHub

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#!/bin/bash
#restore of lvm backed vms

backup_mountpoint="/mnt/ssnas1"

#lvs of vms to restore
lvs=$(ls ${lvpath})

lvpath="/dev/vmvg1"

GZIP="unpigz"

if [ `which pv >/dev/null;echo $?` -eq 0 ];then
  PV="pv"
else
  PV="cat"
fi


#check that backup mountpoint is mounted
mountpoint -q ${backup_mountpoint}||mount ${backup_mountpoint} >/dev/null 2>&1
mountpoint -q ${backup_mountpoint} >/dev/null 2>&1

if [ $? -ne 0 ];then
  echo "ssnas1 not mounted, exiting."
  exit 1
fi

for lv in $lvs;do

  echo -en "\nrestoring ${backup_mountpoint}/$(hostname)/${lv}.gz to $lvpath/$lv\n"
  nice ionice -n2 $PV ${backup_mountpoint}/$(hostname)/${lv}.gz|nice $GZIP -c -|dd of=$lvpath/$lv bs=2M iflag=fullblock

  if [ $? -ne 0 ];then
    echo "restore of $lv failed, exiting."
    exit 3
  fi

  echo -e "restore of $lv complete\n"

done