3 # Bacula interface to mtx autoloader
5 # Written by Kern Sibbald
7 # Bacula® - The Network Backup Solution
9 # Copyright (C) 2000-2014 Free Software Foundation Europe e.V.
11 # The main author of Bacula is Kern Sibbald, with contributions from many
12 # others, a complete list can be found in the file AUTHORS.
14 # You may use this file and others of this release according to the
15 # license defined in the LICENSE file, which includes the Affero General
16 # Public License, v3.0 ("AGPLv3") and some additional permissions and
17 # terms pursuant to its AGPLv3 Section 7.
19 # Bacula® is a registered trademark of Kern Sibbald.
22 # If you set in your Device resource
24 # Changer Command = "path-to-this-script/mtx-changer %c %o %S %a %d"
25 # you will have the following input to this script:
27 # So Bacula will always call with all the following arguments, even though
28 # in come cases, not all are used.
30 # mtx-changer "changer-device" "command" "slot" "archive-device" "drive-index"
35 # mtx-changer /dev/sg0 load 1 /dev/nst0 0 (on a Linux system)
37 # will request to load the first cartidge into drive 0, where
38 # the SCSI control channel is /dev/sg0, and the read/write device
43 # unload unload a given slot
44 # load load a given slot
45 # loaded which slot is loaded?
46 # list list Volume names (requires barcode reader)
47 # slots how many slots total?
48 # listall list all info
51 # Slots are numbered from 1 ...
52 # Drives are numbered from 0 ...
55 # If you need to an offline, refer to the drive as $4
56 # e.g. mt -f $4 offline
58 # Many changers need an offline after the unload. Also many
59 # changers need a sleep 60 after the mtx load.
61 # N.B. If you change the script, take care to return either
62 # the mtx exit code or a 0. If the script exits with a non-zero
63 # exit code, Bacula will assume the request failed.
66 # source our conf file
67 if test ! -f @scriptdir@/mtx-changer.conf ; then
68 echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
69 echo "ERROR: @scriptdir@/mtx-changer.conf file not found!!!!"
70 echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
73 . @scriptdir@/mtx-changer.conf
77 if test ${debug_log} -ne 0 ; then
78 touch @working_dir@/mtx.log
80 dbgfile="@working_dir@/mtx.log"
82 if test -f $dbgfile; then
83 echo "`date +\"%Y%m%d-%H:%M:%S\"` $*" >> $dbgfile
89 # Create a temporary file
92 TMPFILE=`mktemp @working_dir@/mtx.XXXXXXXXXX`
93 if test x${TMPFILE} = x; then
94 TMPFILE="@working_dir@/mtx.$$"
95 if test -f ${TMPFILE}; then
96 echo "ERROR: Temp file security problem on: ${TMPFILE}"
103 # Create a temporary file for stderr
105 # Note, this file is used because sometime mtx emits
106 # unexpected error messages followed by the output
107 # expected during success.
108 # So we separate STDOUT and STDERR in
109 # certain of the mtx commands. The contents of STDERR
110 # is then printed after the STDOUT produced by mtx
111 # thus we sometimes get better changer results.
114 ERRFILE=`mktemp @working_dir@/mtx.err.XXXXXXXXXX`
115 if test x${ERRFILE} = x; then
116 ERRFILE="@working_dir@/mtx.err.$$"
117 if test -f ${ERRFILE}; then
118 echo "ERROR: Temp file security problem on: ${ERRFILE}"
126 # The purpose of this function to wait a maximum
127 # time for the drive. It will
128 # return as soon as the drive is ready, or after
129 # waiting a maximum of 300 seconds.
130 # Note, this is very system dependent, so if you are
131 # not running on Linux, you will probably need to
132 # re-write it, or at least change the grep target.
133 # We've attempted to get the appropriate OS grep targets
134 # in the code at the top of this script.
138 while [ $i -le 300 ]; do # Wait max 300 seconds
139 if mt -f $1 status 2>&1 | grep "${ready}" >/dev/null 2>&1; then
142 debug "Device $1 - not ready, retrying..."
148 # check parameter count on commandline
153 if test $pCount -lt $pCountNeed; then
154 echo "ERROR: usage: mtx-changer ctl-device command [slot archive-device drive-index]"
155 echo " Insufficient number of arguments given."
156 if test $pCount -lt 2; then
157 echo " Mimimum usage is first two arguments ..."
159 echo " Command expected $pCountNeed arguments"
165 # Check for special cases where only 2 arguments are needed,
166 # all others are a minimum of 5
170 check_parm_count $# 2
173 check_parm_count $# 2
176 check_parm_count $# 4
179 check_parm_count $# 5
191 debug "Parms: $ctl $cmd $slot $device $drive"
195 debug "Doing mtx -f $ctl unload $slot $drive"
197 if test ${offline} -eq 1 ; then
198 mt -f $device offline
200 if test ${offline_sleep} -ne 0 ; then
201 sleep ${offline_sleep}
204 ${MTX} -f $ctl unload $slot $drive 2>${ERRFILE}
207 rm -f ${ERRFILE} >/dev/null 2>&1
212 debug "Doing mtx -f $ctl load $slot $drive"
214 ${MTX} -f $ctl load $slot $drive 2>${ERRFILE}
216 if test ${load_sleep} -ne 0 ; then
219 wait_for_drive $device
221 rm -f ${ERRFILE} >/dev/null 2>&1
226 debug "Doing mtx -f $ctl -- to list volumes"
228 if test ${inventory} -ne 0 ; then
229 ${MTX} -f $ctl inventory
231 ${MTX} -f $ctl status >${TMPFILE}
233 if test ${vxa_packetloader} -ne 0 ; then
234 cat ${TMPFILE} | grep " *Storage Element [0-9]*:.*Full" | sed "s/ Storage Element //" | sed "s/Full :VolumeTag=//"
236 cat ${TMPFILE} | grep " Storage Element [0-9]*:.*Full" | awk "{print \$3 \$4}" | sed "s/Full *\(:VolumeTag=\)*//"
238 cat ${TMPFILE} | grep "^Data Transfer Element [0-9]*:Full (Storage Element [0-9]" | awk '{printf "%s:%s\n",$7,$10}'
239 rm -f ${TMPFILE} >/dev/null 2>&1
244 # Drive content: D:Drive num:F:Slot loaded:Volume Name
245 # D:0:F:2:vol2 or D:Drive num:E
250 # S:1:F:vol1 S:Slot num:F:Volume Name
251 # S:2:E or S:Slot num:E
254 # Import/Export tray slots:
255 # I:10:F:vol10 I:Slot num:F:Volume Name
256 # I:11:E or I:Slot num:E
259 debug "Doing mtx -f $ctl -- to list all"
261 if test ${inventory} -ne 0 ; then
262 ${MTX} -f $ctl inventory
264 ${MTX} -f $ctl status >${TMPFILE}
266 # can be converted to awk+sed+cut, see below
268 /Data Transfer Element (\d+):Empty/ && print "D:$1:E\n";
269 /Data Transfer Element (\d+):Full \(Storage Element (\d+) Loaded\)(:VolumeTag =\s*(.+))?/ && print "D:$1:F:$2:$4\n";
270 /Storage Element (\d+):Empty/ && print "S:$1:E\n";
271 /Storage Element (\d+):Full( :VolumeTag=(.+))?/ && print "S:$1:F:$3\n";
272 /Storage Element (\d+) IMPORT.EXPORT:Empty/ && print "I:$1:E\n";
273 /Storage Element (\d+) IMPORT.EXPORT:Full( :VolumeTag=(.+))?/ && print "I:$1:F:$3\n";' ${TMPFILE}
274 # If perl isn't installed, you can use by those commands
275 #cat ${TMPFILE} | grep "Data Transfer Element" | awk "{print \"D:\"\$4 \$7 \$9 \$10}" | sed "s/=/:/" | sed "s/Full/F:/" | sed "s/Empty/E/"
276 #cat ${TMPFILE} | grep -v "Data Transfer Element" | grep "Storage Element" | grep -v "IMPORT/EXPORT" | awk "{print \"S:\"\$3 \$4 \$5}" | sed "s/IMPORT\/EXPORT//" | sed "s/Full *:VolumeTag=/F:/" | sed "s/Empty/E/"
277 #cat ${TMPFILE} | grep -v "Data Transfer Element" | grep "Storage Element" | grep "IMPORT/EXPORT" | awk "{print \"I:\"\$3 \$4 \$5}" | sed "s/IMPORT\/EXPORT//" | sed "s/Full *:VolumeTag=/F:/" | sed "s/Empty/E/"
279 rm -f ${TMPFILE} >/dev/null 2>&1
285 debug "Doing transfer from $slot to $slotdest"
286 ${MTX} -f $ctl transfer $slot $slotdest
292 debug "Doing mtx -f $ctl $drive -- to find what is loaded"
294 ${MTX} -f $ctl status >${TMPFILE}
296 cat ${TMPFILE} | grep "^Data Transfer Element $drive:Full" | awk "{print \$7}"
297 cat ${TMPFILE} | grep "^Data Transfer Element $drive:Empty" | awk "{print 0}"
298 rm -f ${TMPFILE} >/dev/null 2>&1
303 debug "Doing mtx -f $ctl -- to get count of slots"
304 ${MTX} -f $ctl status | grep " *Storage Changer" | awk "{print \$5}"