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 # So Bacula will always call with all the following arguments, even though
13 # in come cases, not all are used.
15 # mtx-changer "changer-device" "command" "slot" "archive-device" "drive-index"
20 # mtx-changer /dev/sg0 load 1 /dev/nst0 0 (on a Linux system)
22 # will request to load the first cartidge into drive 0, where
23 # the SCSI control channel is /dev/sg0, and the read/write device
28 # unload unload a given slot
29 # load load a given slot
30 # loaded which slot is loaded?
31 # list list Volume names (requires barcode reader)
32 # slots how many slots total?
34 # Slots are numbered from 1 ...
35 # Drives are numbered from 0 ...
38 # If you need to an offline, refer to the drive as $4
39 # e.g. mt -f $4 offline
41 # Many changers need an offline after the unload. Also many
42 # changers need a sleep 60 after the mtx load.
44 # N.B. If you change the script, take care to return either
45 # the mtx exit code or a 0. If the script exits with a non-zero
46 # exit code, Bacula will assume the request failed.
49 # source our conf file
50 . @scriptdir@/mtx-changer.conf
54 if test ${debug_log} -ne 0 ; then
55 touch @working_dir@/mtx.log
57 dbgfile="@working_dir@/mtx.log"
59 if test -f $dbgfile; then
60 echo "`date +\"%Y%m%d-%H:%M:%S\"` $*" >> $dbgfile
66 # Create a temporary file
69 TMPFILE=`mktemp @working_dir@/mtx.XXXXXXXXXX`
70 if test x${TMPFILE} = x; then
71 TMPFILE="@working_dir@/mtx.$$"
72 if test -f ${TMPFILE}; then
73 echo "Temp file security problem on: ${TMPFILE}"
80 # The purpose of this function to wait a maximum
81 # time for the drive. It will
82 # return as soon as the drive is ready, or after
83 # waiting a maximum of 300 seconds.
84 # Note, this is very system dependent, so if you are
85 # not running on Linux, you will probably need to
86 # re-write it, or at least change the grep target.
87 # We've attempted to get the appropriate OS grep targets
88 # in the code at the top of this script.
92 while [ $i -le 300 ]; do # Wait max 300 seconds
93 if mt -f $1 status 2>&1 | grep "${ready}" >/dev/null 2>&1; then
96 debug "Device $1 - not ready, retrying..."
102 # check parameter count on commandline
107 if test $pCount -lt $pCountNeed; then
108 echo "usage: mtx-changer ctl-device command [slot archive-device drive-index]"
109 echo " Insufficient number of arguments given."
110 if test $pCount -lt 2; then
111 echo " Mimimum usage is first two arguments ..."
113 echo " Command expected $pCountNeed arguments"
119 # Check for special cases where only 2 arguments are needed,
120 # all others are a minimum of 5
124 check_parm_count $# 2
127 check_parm_count $# 2
130 check_parm_count $# 5
142 debug "Parms: $ctl $cmd $slot $device $drive"
146 debug "Doing mtx -f $ctl unload $slot $drive"
148 if test ${offline} -eq 1 ; then
149 mt -f $device offline
151 if test ${offline_sleep} -ne 0 ; then
152 sleep ${offline_sleep}
154 ${MTX} -f $ctl unload $slot $drive
158 debug "Doing mtx -f $ctl load $slot $drive"
159 ${MTX} -f $ctl load $slot $drive
161 if test ${load_sleep} -ne 0 ; then
164 wait_for_drive $device
169 debug "Doing mtx -f $ctl -- to list volumes"
171 if test ${inventory} -ne 0 ; then
172 ${MTX} -f $ctl inventory
174 ${MTX} -f $ctl status >${TMPFILE}
176 if test ${vxa_packetloader} -ne 0 ; then
177 cat ${TMPFILE} | grep " *Storage Element [0-9]*:.*Full" | sed "s/ Storage Element //" | sed "s/Full :VolumeTag=//"
179 cat ${TMPFILE} | grep " Storage Element [0-9]*:.*Full" | awk "{print \$3 \$4}" | sed "s/Full *\(:VolumeTag=\)*//"
181 cat ${TMPFILE} | grep "^Data Transfer Element [0-9]*:Full (Storage Element [0-9]" | awk '{printf "%s:%s\n",$7,$10}'
182 rm -f ${TMPFILE} >/dev/null 2>&1
187 debug "Doing mtx -f $ctl $drive -- to find what is loaded"
189 ${MTX} -f $ctl status >${TMPFILE}
191 cat ${TMPFILE} | grep "^Data Transfer Element $drive:Full" | awk "{print \$7}"
192 cat ${TMPFILE} | grep "^Data Transfer Element $drive:Empty" | awk "{print 0}"
193 rm -f ${TMPFILE} >/dev/null 2>&1
198 debug "Doing mtx -f $ctl -- to get count of slots"
199 ${MTX} -f $ctl status | grep " *Storage Changer" | awk "{print \$5}"