3 # Bacula interface to mtx autoloader
7 # If you set in your Device resource
9 # Changer Command = "path-to-this-script/mtx-changer %c %o %S %a %d"
10 # you will have the following input to this script:
12 # mtx-changer "changer-device" "command" "slot" "archive-device" "drive-index"
17 # mtx-changer /dev/sg0 load 1 /dev/nst0 0 (on a Linux system)
19 # If you need to an offline, refer to the drive as $4
20 # e.g. mt -f $4 offline
22 # Many changers need an offline after the unload. Also many
23 # changers need a sleep 60 after the mtx load.
25 # N.B. If you change the script, take care to return either
26 # the mtx exit code or a 0. If the script exits with a non-zero
27 # exit code, Bacula will assume the request failed.
32 if test $# -lt 2 ; then
33 echo "usage: mtx-changer ctl-device command slot archive-device drive"
34 echo " Insufficient number of arguments arguments given."
35 echo " Mimimum usage is first two arguments ..."
44 # If drive not given, default to 0
51 ${MTX} -f $1 inventory
54 # Check for special cases where only 2 arguments are needed,
55 # all others are a minimum of 3
66 if test $# -lt 3; then
67 echo "usage: mtx-changer ctl-device command slot archive-device drive"
68 echo " Insufficient number of arguments arguments given."
69 echo " Mimimum usage is first three arguments ..."
78 # echo "Doing mtx -f $ctl unload $slot $drive"
80 # enable the following line if you need to eject the cartridge
81 # mt -f $device offline
82 if test x$slot = x; then
85 ${MTX} -f $ctl unload $slot $drive
90 # echo "Doing mtx -f $ctl load $slot $drive"
91 ${MTX} -f $ctl load $slot $drive
94 # Increase the sleep time if you have a slow device
100 # echo "Requested list"
101 ${MTX} -f $ctl status | grep " *Storage Element [0-9]*:.*Full" | awk '{print $3 $4}' | sed "s/Full *\(:VolumeTag=\)*//"
105 tempfile=`mktemp -t` || exit 33
106 ${MTX} -f $ctl status > $tempfile
108 cat $tempfile | grep "^Data Transfer Element $drive:Full" | awk '{print $7}'
109 cat $tempfile | grep "^Data Transfer Element $drive:Empty" | awk '{print 0}'
115 # echo "Request slots"
116 ${MTX} -f $ctl status | grep " *Storage Changer" | awk '{print $5}'