161 lines
4.1 KiB
Bash
Executable file
161 lines
4.1 KiB
Bash
Executable file
#!/bin/bash
|
|
|
|
# ToDos
|
|
#
|
|
#
|
|
|
|
SOURCE_FOLDER="/opt/data/backup/backup_folders"
|
|
LTO_DEV="/dev/st0"
|
|
BACKUP_NAME="full_backup"
|
|
TAPE_FOLDER="/opt/data/backup/tape_info"
|
|
TAPE_CHECK="1440"
|
|
TAPE_DELAY="30s"
|
|
MAIL="backup_phex@stefan.heinrichsen.net"
|
|
MAX_TAPE_SIZE="500G"
|
|
|
|
DATE="$(date +%Y-%m-%d)"
|
|
TIME="$(date +%H-%M)"
|
|
LOGFILE="$(mktemp -t tar_output_XXX.txt)"
|
|
MESSAGE=""
|
|
TAPE_OLDFILE="$(ls -tC1 ${TAPE_FOLDER} | tail -n 1)"
|
|
|
|
|
|
if [ ! -r $SOURCE_FOLDER ]; then
|
|
MESSAGE="ERROR: Source folder does not exist or is not readable."
|
|
fi
|
|
|
|
if [ ! -w $LTO_DEV ]; then
|
|
MESSAGE="ERROR: Output file/device does not exist or is not writeable."
|
|
fi
|
|
|
|
if [ ! -w $TAPE_FOLDER ]; then
|
|
MESSAGE="ERROR: Tape info-folder does not exist or is not writeable."
|
|
fi
|
|
|
|
if [ ! -z "$MESSAGE" ]; then
|
|
echo $MESSAGE; exit 1
|
|
fi
|
|
|
|
|
|
# loop to wait for valid tape (check for 24h (288 time with 5 minutes delay), then give up
|
|
# Format der Serieal ist: C140604093
|
|
|
|
COUNTER=0
|
|
|
|
TAPE_SERIAL="$(sg_rmsn -r /dev/st0 2> /dev/null)"
|
|
EXIT_CODE=$?
|
|
|
|
while [ $COUNTER -lt $TAPE_CHECK -a $EXIT_CODE -ne 0 ]; do
|
|
# above check was negativ: send mail, wait and recheck
|
|
|
|
echo $TAPE_SERIAL
|
|
if [ $EXIT_CODE -ne 0 -a $COUNTER -eq 0 ]; then
|
|
mail -s "Backup - ${BACKUP_NAME} - no tape found" $MAIL <<EOM
|
|
Hi Admin,
|
|
|
|
it seems there is currently no tape insert into the tape drive.
|
|
Please insert a tape into the drive to store the backup. It should be
|
|
a new one or the oldest of the backup-set.
|
|
|
|
Currently the oldest tape file seems to be:
|
|
$TAPE_OLDFILE
|
|
|
|
Best regards,
|
|
backup-script
|
|
EOM
|
|
fi
|
|
sleep $TAPE_DELAY
|
|
TAPE_SERIAL="$(sg_rmsn -r /dev/st0 2> /dev/null)"
|
|
EXIT_CODE=$?
|
|
|
|
let COUNTER=COUNTER+1
|
|
done
|
|
|
|
echo Tape suche abgeschlossen
|
|
|
|
# Check if we had a timeout. If so we send a mail an exit
|
|
if [ $COUNTER -eq $TAPE_CHECK ]; then
|
|
# Timeout!
|
|
|
|
mail -s "Backup - ${BACKUP_NAME} - tape-timeout" $MAIL <<EOM
|
|
Hi Admin,
|
|
|
|
even after waiting for the defined timout values: ${TAPE_CHECK} time ${TAPE_DELAY}
|
|
no tape was inserted. I gave up...
|
|
|
|
Best regards,
|
|
backup-script
|
|
EOM
|
|
echo timeout
|
|
exit 1;
|
|
fi
|
|
|
|
# For development only
|
|
# TAPE_SERIAL="C140604093"
|
|
|
|
TAPE_FILE="${TAPE_FOLDER}/${TAPE_SERIAL}.log"
|
|
# So we should have a tape serial now, will check existing tape infos now
|
|
|
|
# First check if it is a new tape; this will be ok to use
|
|
# Else check if it is the oldest tape we used previously; this will be ok as well
|
|
# Else we will abort and send a mail...
|
|
|
|
if [ "$(ls -A ${TAPE_FILE} 2> /dev/null)" ]; then
|
|
# We found an existing file. Now we check if it is the oldest file in our log-folder.
|
|
|
|
if [ $TAPE_OLDFILE != $TAPE_SERIAL.log ]; then
|
|
|
|
mail -s "Backup - ${BACKUP_NAME} - invalid tape" $MAIL <<EOM
|
|
Hi Admin,
|
|
|
|
the inserted tape is not a valid one because it was used before and is not the oldest
|
|
tape in the current backup-set.
|
|
|
|
inserted serial : ${TAPE_SERIAL}
|
|
oldest used serial: ${TAPE_OLDFILE%.log}
|
|
|
|
Please remove the old serial logfile or use another tape.
|
|
|
|
Best regards,
|
|
backup-script
|
|
EOM
|
|
exit 1
|
|
fi
|
|
fi
|
|
|
|
touch $TAPE_FILE
|
|
|
|
# rewind this tape (just to be sure)
|
|
MESSAGE="$(mt -f /dev/nst0 rewind)"
|
|
|
|
# do the backup
|
|
# Something wrong here... MESSAGE="$(tar -c -f - ${SOURCE_FOLDER} &> ${LOGFILE} | mbuffer -q -L -s 256k -m 1G -P 95 -o ${LTO_DEV})"
|
|
MESSAGE="$(tar -c -f - ${SOURCE_FOLDER} | mbuffer -q -L -s 256k -m 1G -P 95 -o ${LTO_DEV})"
|
|
#echo "tar -c -f - ${SOURCE_FOLDER} | mbuffer -L -s 256k -m 1G -P 95 -o ${LTO_DEV}"
|
|
|
|
ERROR_CODE=$?
|
|
|
|
if [ $ERROR_CODE -ne 0 ]; then
|
|
mail -s "Backup -${BACKUP_NAME}- exited with error(s)" -a $LOGFILE $MAIL <<EOM
|
|
Hi Admin,
|
|
the backup for $SOURCE_FOLDER exited with error code $ERROR_CODE. Please check on addtional actions. Detailed output:
|
|
|
|
$MESSAGE
|
|
|
|
Best regards,
|
|
your backup-script
|
|
EOM
|
|
|
|
else
|
|
mail -s "Backup -${BACKUP_NAME}- was successful" -a $LOGFILE $MAIL <<EOM
|
|
Hi Admin,
|
|
the backup for $SOURCE_FOLDER went fine. Details at the of the mail.
|
|
Please make sure to savely store the tape.
|
|
|
|
Best regards,
|
|
your backup-script
|
|
|
|
---------
|
|
$MESSAGE
|
|
EOM
|
|
fi
|