Maria McKinley wrote:
Playing around a bit more I had this bizarre occurance:
Device status:
Autochanger "Exabyte" with devices:
"Drive-1" (/dev/st0)
Device "Drive-1" (/dev/st0) open but no Bacula volume is currently mounted.
Device is being initialized.
Slot 9 is loaded in drive 0.
Total Bytes Read=64,512 Blocks Read=1 Bytes/block=64,512
Positioned at File=0 Block=0
====
In Use Volume status:
G0000008 on device "Drive-1" (/dev/st0)
Reader=0 writers=0 reserved=1 released=0
====
====
*
*
31-May 19:41 billie-sd JobId 591: Please mount Volume "G0000008" or
label a new one for:
Job: NightlySave.2008-05-31_01.05.32
Storage: "Drive-1" (/dev/st0)
Pool: Weekly
Media type: VXA-2
I've seen that happen too. Try using the attached script vxa-changer in place of the
standard mtx-changer. Rather than overwriting your current mtx-changer, you can just
edit the "Changer Command" line in "bacula-sd.conf" to point to vxa-changer.
While you are editing "bacula-sd.conf", add the line
Maximum Changer Wait = 1800;
to the Device{} section for your drive.
This script is modified to give the longer wait sometimes needed by vxa drives and it
has better debug logging. Look at /var/lib/bacula/mtx.log for the output.
Mark
#!/bin/sh
#
# Bacula interface to mtx autoloader
# modified for Exabyte VXA packetloader by Mark Nienberg
#
# 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:
#
# 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
#
# for example:
#
# mtx-changer /dev/sg0 load 1 /dev/nst0 0 (on a Linux system)
#
# will request to load the first cartidge into drive 0, where
# 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?
#
# 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
#
# 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.
#
MTX=mtx
# mt status output
# SunOS No Additional Sense
# FreeBSD Current Driver State: at rest.
# Linux ONLINE
OS=`uname`
case ${OS} in
SunOS)
ready="No Additional Sense"
;;
FreeBSD)
ready="Current Driver State: at rest."
;;
*)
ready="ONLINE"
;;
esac
#
# log whats done
#
# to turn on logging, uncomment the following line
touch /var/lib/bacula/mtx.log
#
dbgfile="/var/lib/bacula/mtx.log"
debug() {
if test -f $dbgfile; then
echo "`date +\"%Y%m%d-%H:%M:%S\"` $*" >> $dbgfile
fi
}
#
# Create a temporary file
#
make_temp_file() {
TMPFILE=`mktemp /var/lib/bacula/mtx.XXXXXXXXXX`
if test x${TMPFILE} = x; then
TMPFILE="/var/lib/bacula/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
# time for the drive. It will return as
# soon as the drive is ready, or after a max wait.
# 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.
#
# mark changed this to every 10 sec with total wait of 28 min,
# note "Maximum Changer Wait = 1800" must also be set in bacula-sd.conf
wait_for_drive() {
debug " entered wait_for_drive"
i=1
while [ $i -le 168 ]; do # Wait max 28 minutes
sleep 10
# the status is on the last line of the mt output
mt_rtn=`mt -f $1 status | tail -n1`
debug "$i - mt status for $1 returned $mt_rtn"
if echo $mt_rtn | grep "${ready}" >/dev/null 2>&1; then
break
fi
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)
check_parm_count $# 2
;;
slots)
check_parm_count $# 2
;;
*)
check_parm_count $# 5
;;
esac
# Setup arguments
ctl=$1
cmd="$2"
slot=$3
device=$4
drive=$5
debug "Parms: $ctl $cmd $slot $device $drive"
case $cmd in
unload)
debug "Doing mtx -f $ctl unload $slot $drive"
${MTX} -f $ctl unload $slot $drive
# mark added a short sleep here
debug "sleeping 5 sec after unload"
sleep 5
;;
load)
# record the start time of the mtx load command
before="$(date +%s)"
debug "Doing mtx -f $ctl load $slot $drive"
${MTX} -f $ctl load $slot $drive
rtn=$?
debug "mtx load returned $rtn"
if [ $rtn -eq 0 ]; then
wait_for_drive $device
after="$(date +%s)"
elapsed_seconds="$(expr $after - $before)"
debug "Elapsed time from load to drive ready: $elapsed_seconds"
debug "waiting 60 sec before returning"
sleep 60
fi
exit $rtn
;;
list)
debug "Doing mtx -f $ctl status -- to list volumes"
make_temp_file
${MTX} -f $ctl status >${TMPFILE}
rtn=$?
cat ${TMPFILE} | grep " Storage Element [0-9]*:.*Full" | awk "{print \$3
\$4}" | sed "s/Full *\(:VolumeTag=\)*//"
cat ${TMPFILE} | grep "^Data Transfer Element [0-9]*:Full (Storage
Element [0-9]" | awk '{printf "%s:%s\n",$7,$10}'
rm -f ${TMPFILE} >/dev/null 2>&1
exit $rtn
;;
loaded)
debug "Doing mtx -f $ctl status -- 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} >/dev/null 2>&1
exit $rtn
;;
slots)
debug "Doing mtx -f $ctl status -- to get count of slots"
${MTX} -f $ctl status | grep " *Storage Changer" | awk "{print \$5}"
;;
esac
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