#
# If you set in your Device resource
#
-# Changer Command = "path-to-this-script/mtx-changer" %c %o %S %a %d
+# Changer Command = "path-to-this-script/mtx-changer %c %o %S %a %d"
# you will have the following input to this script:
#
# So Bacula will always call with all the following arguments, even though
# in come cases, not all are used.
-
+#
# mtx-changer "changer-device" "command" "slot" "archive-device" "drive-index"
# $1 $2 $3 $4 $5
#
# the SCSI control channel is /dev/sg0, and the read/write device
# is /dev/nst0.
#
+# The commands are:
+# Command Function
+# unload unload a given slot
+# load load a given slot
+# loaded which slot is loaded?
+# list list Volume names (requires barcode reader)
+# slots how many slots total?
+# listall list all info
+# transfer
+#
+# Slots are numbered from 1 ...
+# Drives are numbered from 0 ...
+#
+#
# If you need to an offline, refer to the drive as $4
# e.g. mt -f $4 offline
#
# exit code, Bacula will assume the request failed.
#
+# source our conf file
+. @scriptdir@/mtx-changer.conf
+
MTX=@MTX@
-TMPFILE=`mktemp mtx.XXXXXXXXXX`
-if test x${TMPFILE} = x; then
- TMPFILE="@working_dir@/mtx.$$"
- if test -f ${TMPFILE}; then
- echo "Temp file security problem on: ${TMPFILE}"
- exit 1
- fi
+
+if test ${debug_log} -ne 0 ; then
+ touch @working_dir@/mtx.log
fi
+dbgfile="@working_dir@/mtx.log"
+debug() {
+ if test -f $dbgfile; then
+ echo "`date +\"%Y%m%d-%H:%M:%S\"` $*" >> $dbgfile
+ fi
+}
+
+
+#
+# Create a temporary file
+#
+make_temp_file() {
+ TMPFILE=`mktemp @working_dir@/mtx.XXXXXXXXXX`
+ if test x${TMPFILE} = x; then
+ TMPFILE="@working_dir@/mtx.$$"
+ if test -f ${TMPFILE}; then
+ echo "Temp file security problem on: ${TMPFILE}"
+ exit 1
+ fi
+ fi
+}
#
# The purpose of this function to wait a maximum
# Note, this is very system dependent, so if you are
# not running on Linux, you will probably need to
# re-write it, or at least change the grep target.
+# We've attempted to get the appropriate OS grep targets
+# in the code at the top of this script.
#
wait_for_drive() {
i=0
while [ $i -le 300 ]; do # Wait max 300 seconds
- if mt -f $1 status | grep ONLINE >/dev/null 2>&1; then
+ if mt -f $1 status 2>&1 | grep "${ready}" >/dev/null 2>&1; then
break
fi
-# echo "Device $1 - not ready, retrying..."
+ debug "Device $1 - not ready, retrying..."
sleep 1
i=`expr $i + 1`
done
}
+# check parameter count on commandline
+#
+check_parm_count() {
+ pCount=$1
+ pCountNeed=$2
+ if test $pCount -lt $pCountNeed; then
+ echo "usage: mtx-changer ctl-device command [slot archive-device drive-index]"
+ echo " Insufficient number of arguments given."
+ if test $pCount -lt 2; then
+ echo " Mimimum usage is first two arguments ..."
+ else
+ echo " Command expected $pCountNeed arguments"
+ fi
+ exit 1
+ fi
+}
+
+# Check for special cases where only 2 arguments are needed,
+# all others are a minimum of 5
+#
+case $2 in
+ list|listall)
+ check_parm_count $# 2
+ ;;
+ slots)
+ check_parm_count $# 2
+ ;;
+ transfer)
+ check_parm_count $# 4
+ ;;
+ *)
+ check_parm_count $# 5
+ ;;
+esac
-if test $# -lt 2 ; then
- echo "usage: mtx-changer ctl-device command slot archive-device drive"
- echo " Insufficient number of arguments arguments given."
- echo " Mimimum usage is first two arguments ..."
- exit 1
-fi
# Setup arguments
ctl=$1
device=$4
drive=$5
-
-#
-# Check for special cases where only 2 arguments are needed,
-# all others are a minimum of 3
-case $cmd in
- list)
- ;;
- slots)
- ;;
- *)
- if test $# -lt 5; then
- echo "usage: mtx-changer ctl-device command slot archive-device drive"
- echo " Insufficient number of arguments arguments given."
- exit 1
- fi
- ;;
-esac
-
+debug "Parms: $ctl $cmd $slot $device $drive"
case $cmd in
unload)
-# echo "Doing mtx -f $ctl unload $slot $drive"
-#
-# enable the following line if you need to eject the cartridge
-# mt -f $device offline
+ debug "Doing mtx -f $ctl unload $slot $drive"
+
+ if test ${offline} -eq 1 ; then
+ mt -f $device offline
+ fi
+ if test ${offline_sleep} -ne 0 ; then
+ sleep ${offline_sleep}
+ fi
${MTX} -f $ctl unload $slot $drive
;;
load)
-# echo "Doing mtx -f $ctl load $slot $drive"
+ debug "Doing mtx -f $ctl load $slot $drive"
${MTX} -f $ctl load $slot $drive
rtn=$?
-#
-# Increase the sleep time if you have a slow device
-# or remove the sleep and add the following:
-# wait_for_drive $device
- sleep 15
+ if test ${load_sleep} -ne 0 ; then
+ sleep ${load_sleep}
+ fi
+ wait_for_drive $device
exit $rtn
;;
list)
-# echo "Doing mtx -f $ctl -- to list volumes"
+ debug "Doing mtx -f $ctl -- to list volumes"
+ make_temp_file
+ if test ${inventory} -ne 0 ; then
+ ${MTX} -f $ctl inventory
+ fi
${MTX} -f $ctl status >${TMPFILE}
rtn=$?
- cat ${TMPFILE} | grep " *Storage Element [0-9]*:.*Full" | awk "{print \$3 \$4}" | sed "s/Full *\(:VolumeTag=\)*//"
+ if test ${vxa_packetloader} -ne 0 ; then
+ cat ${TMPFILE} | grep " *Storage Element [0-9]*:.*Full" | sed "s/ Storage Element //" | sed "s/Full :VolumeTag=//"
+ else
+ cat ${TMPFILE} | grep " Storage Element [0-9]*:.*Full" | awk "{print \$3 \$4}" | sed "s/Full *\(:VolumeTag=\)*//"
+ fi
cat ${TMPFILE} | grep "^Data Transfer Element [0-9]*:Full (Storage Element [0-9]" | awk '{printf "%s:%s\n",$7,$10}'
- rm -f ${TMPFILE} 2>&1 >/dev/null
-#
-# If you have a VXA PacketLoader and the above does not work, try
-# turning it off and enabling the following line.
-# ${MTX} -f $ctl status | grep " *Storage Element [0-9]*:.*Full" | sed "s/*Storage Element //" | sed "s/Full :VolumeTag=//"
+ rm -f ${TMPFILE} >/dev/null 2>&1
+ exit $rtn
+ ;;
+
+ listall)
+ debug "Doing mtx -f $ctl -- to list all"
+ make_temp_file
+ if test ${inventory} -ne 0 ; then
+ ${MTX} -f $ctl inventory
+ fi
+ ${MTX} -f $ctl status >${TMPFILE}
+ rtn=$?
+ # can be converted to awk+sed+cut, contributions are welcome
+ perl -ne '
+/Data Transfer Element (\d+):Empty/ && print "D:$1:E\n";
+/Data Transfer Element (\d+):Full \(Storage Element (\d+) Loaded\)(:VolumeTag =\s*(.+))?/ && print "D:$1:F:$2:$4\n";
+/Storage Element (\d+):Empty/ && print "S:$1:E\n";
+/Storage Element (\d+):Full( :VolumeTag=(.+))?/ && print "S:$1:F:$3\n";
+/Storage Element (\d+) IMPORT.EXPORT:Empty/ && print "I:$1:E\n";
+/Storage Element (\d+) IMPORT.EXPORT:Full( :VolumeTag=(.+))?/ && print "I:$1:F:$3\n";' ${TMPFILE}
+ rm -f ${TMPFILE} >/dev/null 2>&1
+ exit $rtn
+ ;;
+
+ transfer)
+ slotdest=$device
+ debug "Doing transfer from $slot to $slotdest"
+ ${MTX} -f $ctl transfer $slot $slotdest
+ rtn=$?
exit $rtn
;;
loaded)
-# echo "Doing mtx -f $ctl $drive -- to find what is loaded"
+ debug "Doing mtx -f $ctl $drive -- to find what is loaded"
+ make_temp_file
${MTX} -f $ctl status >${TMPFILE}
rtn=$?
cat ${TMPFILE} | grep "^Data Transfer Element $drive:Full" | awk "{print \$7}"
cat ${TMPFILE} | grep "^Data Transfer Element $drive:Empty" | awk "{print 0}"
- rm -f ${TMPFILE} 2>&1 >/dev/null
+ rm -f ${TMPFILE} >/dev/null 2>&1
exit $rtn
;;
slots)
-# echo "Doing mtx -f $ctl -- to get count of slots"
+ debug "Doing mtx -f $ctl -- to get count of slots"
${MTX} -f $ctl status | grep " *Storage Changer" | awk "{print \$5}"
;;
esac
projects / bacula / bacula / blobdiff