git.sur5r.net Git - bacula/docs/blob - docs/manuals/de/concepts/mtx-changer.txt

   1 #!/bin/sh
   2 #
   3 # Bacula interface to mtx autoloader
   4 #
   5 #   Created  OCT/31/03 by Alexander Kuehn, derived from Ludwig Jaffe's script
   6 #
   7 #  Works with the HP C1537A L708 DDS3
   8 #
   9 #set -x
  10 # these are the labels of the tapes in each virtual slot, not the slots!
  11 labels="PSE-0001 PSE-0002 PSE-0003 PSE-0004 PSE-0005 PSE-0006 PSE-0007 PSE-0008 PSE-0009 PSE-0010 PSE-0011 PSE-0012"
  12
  13 # who to send a mail to?
  14 recipient=root@localhost
  15 logfile=/var/log/mtx.log
  16
  17 # Delay in seconds how often to check whether a new tape has been inserted
  18 TAPEDELAY=10    # the default is every 10 seconds
  19 echo `date` ":" $@ >>$logfile
  20
  21 # change this if mt is not in the path (use different quotes!)
  22 mt=`which mt`
  23 grep=`which grep`
  24 #
  25 # how to run the console application?
  26 console="/usr/local/sbin/console -c /usr/local/etc/console.conf"
  27
  28 command="$1"
  29
  30 #TAPEDRIVE0 holds the device/name of your 1st and only drive (Bacula supports only 1 drive currently)
  31 #Read TAPEDRIVE from command line parameters
  32 if [ -z "$2" ] ; then
  33   TAPEDRIVE0=/dev/nsa0
  34 else
  35   TAPEDRIVE0=$2
  36 fi
  37
  38 #Read slot from command line parameters
  39 if [ -z "$3" ] ; then
  40   slot=`expr 1`
  41 else
  42   slot=`expr $3`
  43 fi
  44
  45 if [ -z "$command" ] ; then
  46   echo ""
  47   echo "The mtx-changer script for Bacula"
  48   echo "---------------------------------"
  49   echo ""
  50   echo "usage: mtx-changer <command> <devicename of tapedrive> [slot]"
  51   echo "       mtx-changer"
  52   echo ""
  53   echo "Valid commands:"
  54   echo ""
  55   echo "unload          Unloads a tape into the slot"
  56   echo "                from where it was loaded."
  57   echo "load <slot>     Loads a tape from the slot <slot>"
  58   echo "list            Lists full storage slots"
  59   echo "loaded          Gives slot from where the tape was loaded."
  60   echo "                0 means the tape drive is empty."
  61   echo "slots           Gives Number of avialable slots."
  62   echo "volumes         List avialable slots and the label of the."
  63   echo "                tape in it (slot:volume)"
  64   echo "Example:"
  65   echo "  mtx-changer load /dev/nst0 1   loads a tape from slot1"
  66   echo "  mtx-changer %a %o %S   "
  67   echo ""
  68   exit 0
  69 fi
  70
  71
  72 case "$command" in
  73         unload)
  74                 # At first do mt -f /dev/st0 offline to unload the tape
  75                 #
  76                 # Check if you want to fool me
  77                 echo "unmount"|$console >/dev/null 2>/dev/null
  78                 echo "mtx-changer: Checking if drive is loaded before we unload. Request unload" >>$logfile
  79                 if $mt -f $TAPEDRIVE0 status >/dev/null 2>/dev/null ; then              # mt says status ok
  80                         echo "mtx-changer: Doing mt -f $TAPEDRIVE0 rewoffl to rewind and unload the tape!" >>$logfile
  81                         $mt -f $TAPEDRIVE0 rewoffl
  82                 else
  83                         echo "mtx-changer:  *** Don't fool me! *** The Drive $TAPEDRIVE0 is empty." >>$logfile
  84                 fi
  85                 exit 0
  86                 ;;
  87
  88    load)
  89                 #Let's check if drive is loaded before we load it
  90                 echo "mtx-changer: Checking if drive is loaded before we load. I Request loaded" >>$logfile
  91                 LOADEDVOL=`echo "status Storage"|$console|$grep $TAPEDRIVE0|grep ^Device|grep -v "not open."|grep -v "ERR="|grep -v "no Bacula volume is mounted"|sed -e s/^.*Volume\ //|cut -d\" -f2`
  92 #               if [ -z "$LOADEDVOL" ] ; then   # this is wrong, becaus Bacula would try to use the tape if we mount it!
  93 #                       LOADEDVOL=`echo "mount"|$console|$grep $TAPEDRIVE0|grep Device|grep -v "not open."|grep -v "ERR="|sed -e s/^.*Volume\ //|cut -d\" -f2`
  94 #                       if [ -z "$LOADEDVOL" ] ; then
  95 #                               echo "mtx-changer: The Drive $TAPEDRIVE0 is empty." >>$logfile
  96 #                       else                                                    # restore state?
  97 #                               if [ $LOADEDVOL = $3 ] ; then           # requested Volume mounted -> exit
  98 #                                       echo "mtx-changer: *** Don't fool me! *** Tape $LOADEDVOL is already in drive $TAPEDRIVE0!" >>$logfile
  99 #                                       exit
 100 #                               else                                    # oops, wrong volume
 101 #                                       echo "unmount"|$console >/dev/null 2>/dev/null
 102 #                               fi
 103 #                       fi
 104 #               fi
 105                 if [ -z "$LOADEDVOL" ] ; then
 106                         echo "unmount"|$console >/dev/null 2>/dev/null
 107                         LOADEDVOL=0
 108                 else
 109                         #Check if you want to fool me
 110                         if [ $LOADEDVOL = $3 ] ; then
 111                                 echo "mtx-changer: *** Don't fool me! *** Tape $LOADEDVOL is already in drive $TAPEDRIVE0!" >>$logfile
 112                                 exit
 113                         fi
 114                         echo "mtx-changer: The Drive $TAPEDRIVE0 is loaded with the tape $LOADEDVOL" >>$logfile
 115                         echo "mtx-changer: Unmounting..." >>$logfile
 116                         echo "unmount"|$console >/dev/null 2>/dev/null
 117                 fi
 118                 echo "mtx-changer: Unloading..." >>$logfile
 119                 echo "mtx-changer: Doing mt -f $TAPEDRIVE0 rewoffl to rewind and unload the tape!" >>$logfile
 120                 mt -f $TAPEDRIVE0 rewoffl 2>/dev/null
 121                 #Now we can load the drive as desired
 122                 echo "mtx-changer: Doing mtx -f $1 $2 $3" >>$logfile
 123                 # extract label for the mail
 124                 count=`expr 1`
 125                 for label in $labels ; do
 126                         if [ $slot -eq $count ] ; then volume=$label ; fi
 127                         count=`expr $count + 1`
 128                 done
 129
 130                 mail -s "Bacula needs volume $volume." $recipient <<END_OF_DATA
 131 Please insert volume $volume from slot $slot into $TAPEDRIVE0 .
 132 Kind regards,
 133 Bacula.
 134 END_OF_DATA
 135                 sleep 15
 136                 $mt status >/dev/null 2>/dev/null
 137                 while [ $? -ne 0 ] ; do
 138                         sleep $TAPEDELAY
 139                         $mt status >/dev/null 2>/dev/null
 140                 done
 141                 mail -s "Bacula says thank you." $recipient <<END_OF_DATA
 142 Thank you for inserting the new tape! (I requested volume $volume from slot $slot.)
 143 Kind regards,
 144 Bacula.
 145 END_OF_DATA
 146                 echo "Successfully loaded a tape into drive $TAPEDRIVE0 (requested $volume from slot $slot)." >>$logfile
 147                 echo "Loading finished." ; >>$logfile
 148                 echo "$slot"
 149                 exit 0
 150                 ;;
 151
 152         list)
 153                 echo "mtx-changer: Requested list" >>$logfile
 154                 LOADEDVOL=`echo "status Storage"|$console|$grep $TAPEDRIVE0|grep ^Device|grep -v "not open."|grep -v "ERR="|grep -v "no Bacula volume is mounted"|sed -e s/^.*Volume\ //|cut -d\" -f2`
 155                 if [ -z $LOADEDVOL ] ; then             # try mounting
 156                         LOADEDVOL=`echo "mount"|$console|$grep $TAPEDRIVE0|grep Device|grep -v "not open."|grep -v "ERR="|sed -e s/^.*Volume\ //|cut -d\" -f2`
 157                         if [ -z $LOADEDVOL ] ; then             # no luck
 158                                 LOADEDVOL="_no_tape"
 159                         else                                                    # restore state
 160                                 echo "unmount"|$console >/dev/null 2>/dev/null
 161                         fi
 162                 fi
 163                 count=`expr 1`
 164                 for label in $labels ; do
 165                         if [ "$label" != "$LOADEDVOL" ] ; then
 166                                 printf "$count "
 167                         fi
 168                         count=`expr $count + 1`
 169                 done
 170                 printf "\n"
 171       ;;
 172
 173    loaded)
 174                 echo "mtx-changer: Request loaded, dev $TAPEDRIVE0" >>$logfile
 175                 LOADEDVOL=`echo "status Storage"|$console|$grep $TAPEDRIVE0|grep ^Device|grep -v "not open."|grep -v "ERR="|grep -v "no Bacula volume is mounted"|sed -e s/^.*Volume\ //|cut -d\" -f2`
 176                 if [ -z $LOADEDVOL ] ; then
 177                         LOADEDVOL=`echo "mount"|$console|$grep $TAPEDRIVE0|grep Device|grep -v "not open."|grep -v "ERR="|grep -v "no Bacula volume is mounted"|sed -e s/^.*Volume\ //|cut -d\" -f2`
 178                         if [ -z "$LOADEDVOL" ] ; then           # no luck
 179                                 echo "$TAPEDRIVE0 not mounted!" >>$logfile
 180                         else                                                    # restore state
 181                                 echo "unmount"|$console >/dev/null 2>/dev/null
 182                         fi
 183                 fi
 184                 if [ -z "$LOADEDVOL" ] ; then
 185                         LOADEDVOL="_no_tape" >>$logfile
 186                         echo "0"
 187                 else
 188                         count=`expr 1`
 189                         for label in $labels ; do
 190                                 if [ $LOADEDVOL = $label ] ; then echo $count ; fi
 191                                 count=`expr $count + 1`
 192                         done
 193                 fi
 194                 exit 0
 195                 ;;
 196
 197    slots)
 198                 echo "mtx-changer: Request slots" >>$logfile
 199                 count=`expr 0`
 200                 for label in $labels ; do
 201                         count=`expr $count + 1`
 202                 done
 203                 echo $count
 204       ;;
 205
 206    volumes)
 207                 echo "mtx-changer: Request volumes" >>$logfile
 208                 count=`expr 1`
 209                 for label in $labels ; do
 210                         printf "$count:$label "
 211                         count=`expr $count + 1`
 212                 done
 213                 printf "\n"
 214       ;;
 215 esac