Tape_Backup/PToTape-1.1.0.sh

#!/bin/bash
clear

LoclaIP="10.0.4.2"
Rshot="Raid10_pool"
RserverIP="10.0.4.2"
Rserver="root@$RserverIP"
Ldest="testpool/test"
DATE=`date +%Y-%m-%d`
logfile="/mnt/NFSUsers/thierry423/PToTape/$0_$DATE.log"
#loadedtape="/mnt/NFSUsers/thierry423/loadedtape.cnf"
testfile="/mnt/NFSUsers/thierry423/latest-p_run.log"
loaderdev="/dev/sg7"
c="0"
mkdir /mnt/NFSUsers ; mount 10.0.4.1:/mnt/bigpart/Users /mnt/NFSUsers
rm $logfile
#ioslot="X"

prepair () {
#echo "prepair / rewind tape drive's" >> $logfile

mt -f /dev/st0 rewind&
mt -f /dev/st1 rewind
wait
}

function choustape () {
wk=$(date +%V)
x=7;z=0;tp=1
while [ $z -lt 1 ]
 do
  if [[ $wk -lt $x ]]; then 
  break
  else 
   x=$[$x+8]
   tp=$[$tp+1]
  fi
 done
 echo "tape period: " $tp >> $logfile
 echo $tp > $testfile
  if [[ $tp = 1 ]]; then tp=1; fi ###buggg work around next if....
  if [[ $tp = 2 ]]; then tp=9; fi
  if [[ $tp = 3 ]]; then tp=11; fi
  if [[ $tp = 4 ]]; then tp=21; fi
  if [[ $tp = 5 ]]; then tp=23; fi
  if [[ $tp = 6 ]]; then tp=33; fi
  if [[ $tp = 7 ]]; then tp=35; fi
if [[ $1 = 1 ]]; then 
 slotnr=$[1+$tp]
 ioslot="46"
 fi
if [[ $1 = 2 ]]; then 
 slotnr=$[5+$tp]
  if [[ $tp = 1 ]]; then slotnr=5; fi ###buggg work around
 ioslot="47"
 fi
if [[ $1 = 3 ]]; then 
 slotnr=$[9+$tp]
  if [[ $tp = 1 ]]; then slotnr=8; fi ###buggg work around
 ioslot="48"
 fi
    mtx -f $loaderdev load $[$slotnr ] 0 >> $logfile
    slotnr2=$[$slotnr+1]
    mtx -f $loaderdev load $[$slotnr2 ] 1 >> $logfile
     echo "$ioslot:$slotnr:$slotnr2"
   if [[ $? != 0 ]]; then
    echo "failed to change to next 2 Tape's"
    echo "failed to change to next 2 Tape's" >> $logfile
    exit
   else
     echo "$ioslot:$slotnr:$slotnr2"
     #echo "tapes $slotnr loaded"
   fi
#return $slotnr
}

ejec () {
mt -f /dev/st0 rewind&
mt -f /dev/st1 rewind
wait
mtx -f $loaderdev unload $1 0
mtx -f $loaderdev unload $2 1
 echo "rewind & ejected to slot $1 & $2 from drive 0 & 1" >> $logfile
 echo " " >> $logfile
}

writetotape () {
  #killall mbuffer
   b="0"
   a="0"
   c="$1"
  echo "created remote snapshot & start mbuffer" >> $logfile
   ssh $Rserver zfs snapshot -r $Rshot@tapeshot0 >> $logfile
   sleep 3
   ssh $Rserver zfs send -R $Rshot@tapeshot0 |mbuffer -L -Q -P 90 -s 8388608 -m 6G -o /dev/nst0 -l mbuftmp.tmp
  echo "writen full-snapshot to tape" >> $logfile
  cat mbuftmp.tmp >> $logfile
  wait
  c=$[$c+1]
   ssh $Rserver zfs destroy -r $Rshot@tapeshot0 >> $logfile
     echo "destroyed remote snapshot" >> $logfile
     echo "writen $Rshot to tape nr: $num_tape whit or whitout errors. Next?" >>$logfile 
     echo " " >> $logfile
 return $c
}

CloneTape () {
 echo "Start Cloning of tapes"
 prepair
 a="1"
 b="0"
 c="$1"
    echo "clone tape $num_tape to $num_tape2  @ $(date)" >> $logfile
 while [ $c -gt 0 ]
  do
   dd if=/dev/nst0 bs=8388608 | mbuffer -L -P 75 -s 8388608 -m 6G -o /dev/nst1 -l mbuftmp.tmp
   cat mbuftmp.tmp >> $logfile
   echo "track $a from drive0 received" >> $logfile
   a=$[$a+1]
   c=$[$c-1]
done 
 echo "no more tracks on tape, total of $a tracks" >> $logfile
}

Writetozpool () {
echo "Write To test Zpool"
a="1"
b="0"
zfs destroy -r testpool
sleep 3
while [ $b -lt 1 ]
do
 #mbuffer -L -Q -p 90 -s 8388608 -m 6G -i /dev/nst0 -l mbuftmp.tmp |  zfs receive -F testpool/test-t1$a
 mbuffer -L -Q -p 90 -s 8388608 -m 6G -i /dev/nst1 -l mbuftmp.tmp |  zfs receive -F testpool/test-t2$a
 #dd if=/dev/nst0 bs=8388608 status=progress |  zfs receive -F testpool/test$a
 #dd if=/dev/nst1 bs=8M status=progress |  zfs receive -F testpool/testt$a
 if [[ $? != 0 ]]; then
  a=$[$a-1]
  echo "No more snapshots on tape latest was $a"
  b="1"
 else
  echo "snapshot $a received"
  a=$[$a+1]
 fi
done 
}

echo "Start fule backup to tape @ $(date)" >> $logfile
 echo "running 7 week Backup @ $(date)" >> $logfile
   IFS=":"
   read ioslot num_tape num_tape2<<<"$(choustape 1)"
    Rshot="Raid10_pool/Users"
     prepair
     writetotape 0
      shots=$?
    CloneTape $shots
    ejec $num_tape $ioslot
   IFS=":"
   read ioslot num_tape num_tape2<<<"$(choustape 2)"
    Rshot="Raid10_pool/System"
     prepair
     writetotape 0
      shots=$?
    Rshot="Raid10_pool/var"
     writetotape $shots
      shots=$?
    Rshot="BIG_pool/Media/Podcast"
     writetotape $shots
      shots=$?  
    CloneTape $shots
    ejec $num_tape $ioslot
   IFS=":"
   read ioslot num_tape num_tape2<<<"$(choustape 3)"
     #Rserver="root@10.0.4.2" 
     Rshot="BIG_pool/Media/Video"
      prepair
      writetotape 0
       shots=$?
     Rshot="BIG_pool/Media/Music"
      writetotape $shots
       shots=$?  
     CloneTape $shots
     ejec $num_tape $ioslot
echo "finished fule backup to tape @ $(date)"  >> $logfile

echo "-----------------------------------------------------"  >> $logfile
echo " "  >> $logfile
echo " "  >> $logfile
#rm mbuftmp.tmp
killall mbuffer -q
wait
# recover to single tape drive....:   dd if=/dev/st0 bs=8M | zfs receive -F testpool/test2