--- /dev/null
+#!/bin/bash
+#
+# /bin/sh isn't always compatible so use /bin/bash
+#
+# Bacula interface to mtx autoloader
+#
+# $Id$
+#
+# If you set in your Device resource
+#
+# Changer Command = "path-to-this-script/mtx-changer" %c %o %S %a %d
+# you will have the following input to this script:
+#
+# mtx-changer "changer-device" "command" "slot" "archive-device" "drive-index"
+# $1 $2 $3 $4 $5
+#
+# for example:
+#
+# mtx-changer /dev/sg0 load 1 /dev/nst0 0 (on a Linux system)
+#
+# If you need to an offline, refer to the drive as $4
+# e.g. mt -f $4 offline
+#
+# Many changers need an offline after the unload. Also many
+# changers need a sleep 60 after the mtx load.
+#
+# N.B. If you change the script, take care to return either
+# the mtx exit code or a 0. If the script exits with a non-zero
+# exit code, Bacula will assume the request failed.
+#
+
+# Sun sed/awk etc are not sufficient, working versions are in /usr/xpg4/bin
+export PATH="/usr/local/bin:/usr/sfw/bin:/usr/xpg4/bin:/usr/bin"
+
+MTX=mtx
+
+
+#
+# The purpose of this function to wait a maximum
+# time for the drive. It will
+# return as soon as the drive is ready, or after
+# waiting a maximum of 180 seconds.
+# Note, this is very system dependent, so if you are
+# not running on Linux, you will probably need to
+# re-write it.
+#
+# If you have a FreeBSD system, you might want to change
+# the $(seq 180) to $(jot 180) -- tip from Brian McDonald
+#
+wait_for_drive() {
+ for i in $(seq 180); do # Wait max 180 seconds
+ if ( mt -f $1 status | grep 0x0 ) >/dev/null 2>&1; then
+ #echo "Device $1 READY"
+ break
+ fi
+ #echo "Device $1 - not ready, retry ${i}..."
+ sleep 1
+ done
+}
+
+
+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
+cmd="$2"
+slot=$3
+device=$4
+# If drive not given, default to 0
+if test $# = 5 ; then
+ drive=$5
+else
+ drive=0
+fi
+
+#
+# Check for special cases where only 2 arguments are needed,
+# all others are a minimum of 3
+case $cmd in
+ loaded)
+ ;;
+ unload)
+ ;;
+ list)
+ ;;
+ slots)
+ ;;
+ *)
+ if test $# -lt 3; then
+ echo "usage: mtx-changer ctl-device command slot archive-device drive"
+ echo " Insufficient number of arguments arguments given."
+ echo " Mimimum usage is first three arguments ..."
+ exit 1
+ fi
+ ;;
+esac
+
+
+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
+ mt -f $device rewoffl
+ if test x$slot = x; then
+ ${MTX} -f $ctl unload
+ else
+ ${MTX} -f $ctl unload $slot $drive
+ fi
+ ;;
+
+ load)
+# echo "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:
+ #sleep 15
+ wait_for_drive $device
+ exit $rtn
+ ;;
+
+ list)
+# echo "Requested list"
+ # Some tape changers lose track of their inventory (well, mine does) so
+ # do one before trying to get a status out of it.
+ ${MTX} -f $ctl inventory
+ ${MTX} -f $ctl status | grep " *Storage Element [0-9]*:.*Full" | awk "{print \$3 \$4}" | sed "s/Full *\(:VolumeTag=\)*//"
+# Comment out the previous line and add a line here
+# to print "fake" barcodes.
+#
+# 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=//"
+ ;;
+
+ loaded)
+ ${MTX} -f $ctl status >/tmp/mtx.$$
+ rtn=$?
+ cat /tmp/mtx.$$ | grep "^Data Transfer Element $drive:Full" | awk "{print \$7}"
+ cat /tmp/mtx.$$ | grep "^Data Transfer Element $drive:Empty" | awk "{print 0}"
+ rm -f /tmp/mtx.$$
+ exit $rtn
+ ;;
+
+ slots)
+# echo "Request slots"
+ ${MTX} -f $ctl status | grep " *Storage Changer" | awk "{print \$5}"
+ ;;
+esac
PSCMD="@PSCMD@"
+#
+# On Solaris, you may need to use nawk, or alternatively,
+# add the GNU binaries to your path, such as /usr/xpg4/bin
+#
+AWK=awk
+
# All these are not *really* needed but it makes it
# easier to "steal" this code for the development
# environment where they are different.
fi
# Finally try to extract it from ps
- ${PSCMD} | grep $1 | awk '{ print $1 }' | tr '\n' ' '
+ ${PSCMD} | grep $1 | ${AWK} '{ print $1 }' | tr '\n' ' '
return 0
}
status() {
+ pid=""
# Test syntax.
if [ $# = 0 ] ; then
echo "Usage: status {program}"
echo "$base (pid $pid) is running..."
return 0
else
- pid=`${PSCMD} | awk 'BEGIN { prog=ARGV[1]; ARGC=1 }
+ pid=`${PSCMD} | ${AWK} 'BEGIN { prog=ARGV[1]; ARGC=1 }
{ if ((prog == $2) || (("(" prog ")") == $2) ||
(("[" prog "]") == $2) ||
((prog ":") == $2)) { print $1 ; exit 0 } }' $1`
projects / bacula / bacula / commitdiff