--- /dev/null
+#!@SHELL@
+
+# chg-juke
+#
+# This assumes we have possibly rait-striped drives in several
+# jukeboxes, controlled by the Fermilab "juke" package
+#
+# So we could have 3 drives in 3 jukeboxes:
+# changerscript="chg-juke"
+# changerfile=/some/file
+# tapedev="rait:/dev/nst{1,2,3}"
+# changerdev="myjuke{0,1,2}"
+# Or, if the jukebox has multiple drives:
+# changerscript="chg-juke"
+# changerfile=/some/file
+# tapedev="rait:/dev/nst{1,2,3}"
+# changerdev="myjuke"
+# We need therefore to generate lists with csh to expand the tapedev
+# and changerdev, and deal with the possibility that there are several
+# jukeboxes and several drives in each jukebox involved.
+
+prefix="@prefix@"
+exec_prefix="@exec_prefix@"
+sbindir="@sbindir@"
+amlibexecdir="@amlibexecdir@"
+. "${amlibexecdir}/amanda-sh-lib.sh"
+
+
+#
+# debugging...
+#
+if [ -d "@AMANDA_DBGDIR@" ]; then
+ DBGFILE=@AMANDA_DBGDIR@/changer.debug
+else
+ DBGFILE=/dev/null
+fi
+exec 2>$DBGFILE
+echo `_ 'args:'` $0 $* >&2
+set -x
+
+#
+# the usual config fun
+#
+
+USE_VERSION_SUFFIXES="@USE_VERSION_SUFFIXES@"
+if test "$USE_VERSION_SUFFIXES" = "yes"; then
+ SUF="-@VERSION@";
+else
+ SUF=
+fi
+getconf=$sbindir/amgetconf$SUF
+
+#
+# make sure we can find JUKE later
+#
+JUKE_DIR=/usr/local
+# Fermilab specific
+if [ -f /usr/local/etc/setups.sh ]
+then
+ . /usr/local/etc/setups.sh
+ setup juke
+fi
+
+# add sbin, ucb, and the JUKE_DIR to PATH
+PATH="$PATH:$JUKE_DIR/bin:/usr/sbin:/sbin:/usr/ucb"
+export PATH JUKE_DIR
+
+build_drivelists() {
+ #
+ # figure out which drives are in which jukebox
+ #
+ count=0
+ for juke in $jlist
+ do
+ for d in $dlist
+ do
+ if juke list -j $juke drive $d | grep 'drive [0-9]' >&2
+ then
+ eval "drives_in_$juke=\"\$drives_in_$juke $d\""
+ fi
+ done
+ done
+}
+
+unload_drive_n_clean() {
+
+ #
+ # $1 is whether to clean it
+ #
+ cleanit=$1
+
+ #
+ # if the drive is ONLINE, mt unload it
+ #
+ if amdevcheck_status $tapedev; then
+ try_eject_device $tapedev
+ fi
+
+ #
+ # unload any tapes present, maybe load/unload a cleaning cartridge
+ #
+ for juke in $jlist
+ do
+ eval "jdlist=\"\$drives_in_$juke\""
+ for drive in $jdlist
+ do
+ juke unload -j $juke drive $drive >&2 || true
+ if juke list -j $juke drive $drive | grep '(empty)' >&2
+ then
+ :
+ else
+ echo `_ '%s %s unable to empty preceding tape from drive %s' "$slot" "$tapedev" "$drive"`
+ exit 1
+ fi
+
+ if $cleanit
+ then
+ juke load -j $juke drive $drive clean
+ sleep 120
+ juke unload -j $juke drive $drive
+ fi
+ done
+ done
+}
+
+load_drives() {
+ #
+ # load slots. If it's a stripe, load several...
+ #
+ for juke in $jlist
+ do
+ eval "jdlist=\"\$drives_in_$juke\""
+ jndrives=`echo $jdlist | wc -w`
+ count=0
+ for drive in $jdlist
+ do
+ rslot=`expr $newslot '*' $jndrives + $count`
+ juke load -j $changerdev drive $drive slot $rslot >&2
+ if juke list -j $changerdev drive $drive | grep '(empty)' >&2
+ then
+ echo `_ '$slot $tapedev unable to load tape into drive' "$slot" "$tapedev"`
+ exit 1
+ fi
+ count=`expr $count + 1`
+ done
+ done
+
+ #
+ # wait for drive(s) to come online
+ #
+ count=0
+ until amdevcheck_status $tapedev; do
+ count=`expr $count + 1`
+ if [ $count -gt 24 ]
+ then
+ echo `_ '%s %s never came online' "$slot" "$tapedev"`
+ exit 1
+ fi
+ sleep 5
+ done
+}
+
+
+ONLINEREGEX="ONLINE|READY|sense[_ ]key[(]0x0[)]|sense key error = 0|^er=0$"
+
+#
+# get config variables
+#
+changerfile=`$getconf changerfile`
+ tapedev=`$getconf tapedev`
+ changerdev=`$getconf changerdev`
+ dlist=`csh -c "echo $tapedev" | sed -e 's/rait://g' -e 's/tape://g'`
+ ndrives=`echo $dlist | wc -w`
+ jlist=`csh -c "echo $changerdev"`
+ njukes=`echo $jlist | wc -w`
+ totalslots=`for juke in $jlist ; do juke list -j $juke; done |
+ grep -v '^clean' |
+ grep 'slot [0-9]' |
+ wc -l`
+
+if [ $ndrives -gt 1 ]
+then
+ #
+ # if it's a 3 tape stripe and we have 30 actual slots
+ # we only have 10 virtual slots...
+ #
+ totalslots=`expr $totalslots / $ndrives`
+fi
+
+build_drivelists
+
+#
+# get current slot if we have one
+#
+if [ -f "$changerfile" ]
+then
+ slot="`cat $changerfile`"
+else
+ slot=0
+ echo $slot > $changerfile
+fi
+
+#
+# We treat -reset just like -slot 0
+#
+if [ x$1 = 'x-reset' ]
+then
+ set : -slot 0
+ shift
+fi
+
+case x$1 in
+
+x-slot)
+
+ #
+ # handle special slots...
+ #
+ case "$2" in
+ current) newslot=$slot ; load=true;;
+ next) newslot=`expr $slot + 1`; load=true;;
+ advance) newslot=`expr $slot + 1`; load=false;;
+ prev) newslot=`expr $slot - 1`; load=true;;
+ first) newslot=0 ; load=true;;
+ last) newslot=-1 ; load=true;;
+ *) newslot=$2 ; load=true;;
+ esac
+
+ if [ $newslot = "clean" ]
+ then
+ unload_drive_n_clean true
+ else
+ if [ 0 -gt $newslot ]
+ then
+ newslot=`expr $totalslots - 1`
+ fi
+
+ if [ $totalslots -le $newslot ]
+ then
+ newslot=0
+ fi
+
+ echo $newslot > $changerfile
+ slot=$newslot
+
+ if $load
+ then
+ unload_drive_n_clean false
+ load_drives
+ fi
+ fi
+
+ echo $slot $tapedev
+ ;;
+
+x-info)
+ echo $slot $totalslots 1
+ exit 0
+ ;;
+
+x-eject)
+ unload_drive_n_clean false
+ echo $slot $tapedev
+ ;;
+esac
+
+exit $rc
projects / debian / amanda / blobdiff