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|
#!/bin/sh
#
# BAREOS interface to tape libraries and autoloaders for FreeBSD
# (by Rudolf Cejka <cej...@fit.vutbr.cz>, v1.2, 2012/11/14)
#
# If you set in your Device resource
# Changer Command = "path-to-this-script/chio-changer %c %o %S %a %d"
# you will have the following input to this script:
# chio-changer "changer-device" "command" "slot" "tape-device" "drive-index"
# $1 $2 $3 $4 $5
# for example (on a FreeBSD system):
# chio-changer /dev/ch0 load 1 /dev/nsa0 0
#
# If you change the script, take care to return either the chio exit
# code or a 0. If the script exits with a non-zero exit code, BAREOS
# will assume the request failed.
#
PROGNAME=`basename $0`
# Uncomment the following line, if you want to log debug output.
#DEBUG=/var/run/bareos/${PROGNAME}.log
# Uncomment the following line, if you need to eject a tape before moving
# it from the drive.
#OFFLINE=yes
# Uncomment one or more of the following lines, if you need to wait for
# some time (in seconds) after unloading, loading or transferring a tape.
#OFFLINE_SLEEP=10
#LOAD_SLEEP=10
#MOVE_SLEEP=10
# Uncomment the following line, if you do not have a changer with volume
# reader.
#FAKE_BARCODES=/usr/local/etc/bareos-barcodes
usage()
{
cat <<EOF
Usage: ${PROGNAME} <changer-device> <cmd> [slot] [tape-device] [drive-index]
Commands (<cmd>):
unload Unload a tape into the slot from where it was loaded
load <slot> Load a tape from the slot <slot> (1-based)
transfer <slot> <slotdst> Transfer a tape from the slot <slot> to
the slot <slotdst> (1-based)
list List full storage slots
listall List all storage slots and drives with source information
loaded Give slot from where the tape was loaded (0 = empty drive)
slots Give number of available slots
Example:
${PROGNAME} /dev/ch0 load 1 Load a tape from the slot 1
EOF
exit 1
}
# Default settings
CHANGER=/dev/ch0
TAPE=/dev/nsa0
DRIVE=0
CHIO=/bin/chio
MT=/usr/bin/mt
if [ -n "${DEBUG}" ]; then
MSG=$0
for PAR; do MSG="${MSG} \"${PAR}\""; done
echo `date +"%Y/%m/%d %H:%M:%S"` ${MSG} >> ${DEBUG}
fi
if [ -n "$1" ]; then
CHANGER=$1;
fi
COMMAND=$2
SLOT=$3
SLOTDST=$4
if [ -n "$4" ]; then
TAPE=$4
fi
if [ -n "$5" ]; then
DRIVE=$5
fi
case ${COMMAND} in
unload)
if [ "${OFFLINE}" = yes ]; then
${MT} -f ${TAPE} offline
if [ $? = 0 -a -n "${OFFLINE_SLEEP}" ]; then
sleep ${OFFLINE_SLEEP}
fi
fi
if [ -z "${SLOT}" ]; then
${CHIO} -f ${CHANGER} return drive ${DRIVE}
else
${CHIO} -f ${CHANGER} move drive ${DRIVE} slot $((${SLOT} - 1))
fi
if [ $? -ne 0 ]; then
# In case of an error, try to unload the cartridge to the first free slot
FREE=`${CHIO} -f ${CHANGER} status slot | \
sed -ne '/FULL/d;s/^slot *\([0-9]*\):.*/\1/p' | \
awk 'BEGIN { n = 0 } { n = $1 + 1; exit } END { print n }'`
if [ ${FREE} -gt 0 ]; then
${CHIO} -f ${CHANGER} move drive ${DRIVE} slot $((${FREE} - 1))
else
exit 1
fi
fi
;;
load)
if [ -z "${SLOT}" ]; then
usage
fi
${CHIO} -f ${CHANGER} move slot $((${SLOT} - 1)) drive ${DRIVE}
if [ $? -ne 0 ]; then
exit 1
fi
if [ -n "${LOAD_SLEEP}" ]; then
sleep ${LOAD_SLEEP}
fi
;;
transfer)
if [ -z "${SLOT}" -o -z "${SLOTDST}" ]; then
usage
fi
${CHIO} -f ${CHANGER} move slot $((${SLOT} - 1)) slot $((${SLOTDST} - 1))
if [ $? -ne 0 ]; then
exit 1
fi
if [ -n "${MOVE_SLEEP}" ]; then
sleep ${MOVE_SLEEP}
fi
;;
list)
if [ -z "${FAKE_BARCODES}" ]; then
${CHIO} -f ${CHANGER} status -v slot | \
sed -ne 's/^slot *\([0-9]*\):.*FULL.*voltag.*<\([^:]*\):.*/\1:\2/p' | \
awk -F: '{ print $1 + 1 ":" $2 }'
else
if [ -f "${FAKE_BARCODES}" ]; then
grep -v -e "^#" -e "^$" < ${FAKE_BARCODES}
else
echo "${PROGNAME}: Barcode file ${FAKE_BARCODES} is missing"
exit 1
fi
fi
;;
listall)
if [ -z "${FAKE_BARCODES}" ]; then
${CHIO} -f ${CHANGER} status -vS | \
sed -ne '
s/^slot *\([0-9]*\):.*ENAB.*FULL.*voltag.*<\([^:]*\):.*/I:\1:F:\2/p;t
s/^slot *\([0-9]*\):.*FULL.*voltag.*<\([^:]*\):.*/S:\1:F:\2/p;t
s/^drive *\([0-9]*\):.*FULL.*voltag.*<\([^:]*\):.*source.*<[^0-9]*\([0-9]*\)>.*/D:\1:F:\3:\2/p;t
s/^slot *\([0-9]*\):.*ENAB.*voltag.*<\([^:]*\):.*/I:\1:E/p;t
s/^slot *\([0-9]*\):.*voltag.*<\([^:]*\):.*/S:\1:E/p;t
s/^drive *\([0-9]*\):.*voltag.*<\([^:]*\):.*/D:\1:E/p' | \
awk -F: '{ for (n = 1; n <= NF; n++) printf "%s%s",
(n == ($1 == "D" ? 4 : 2)) ? ($n == "" ? 0 : $n + 1) : $n,
(n == NF) ? "\n" : ":" }'
else
if [ -f "${FAKE_BARCODES}" ]; then
grep -v -e "^#" -e "^$" < ${FAKE_BARCODES} | \
awk -F: '{ print "S:" $1 (match($2, "^ *$") ? ":E" : ":F:" $2) }'
else
echo "${PROGNAME}: Barcode file ${FAKE_BARCODES} is missing"
exit 1
fi
fi
;;
loaded)
# If a tape is loaded, but the source slot is unknown (for example,
# after library reboot), try to report the first free slot
FREE=`${CHIO} -f ${CHANGER} status slot | \
sed -ne '/FULL/d;s/^slot *\([0-9]*\):.*/\1/p' | \
awk 'BEGIN { n = 0 } { n = $1 + 1; exit } END { print n }'`
${CHIO} -f ${CHANGER} status -S drive | \
sed -ne 's/^drive *'${DRIVE}':.*FULL.*source.*<[^0-9]*\([0-9]*\)>.*/\1/p' \
| awk 'BEGIN { n = 0 } { n = ($1 == "") ? '${FREE}' : $1 + 1 } \
END { print n }'
;;
slots)
${CHIO} -f ${CHANGER} status | grep -c "^slot "
;;
*)
usage
;;
esac
|
