Basic backup script using Tar
 

Hiya,

I've obtained a SCSI Sony DDS2 DAT drive which i'd like to use for regular backups of configs and a small database.

I've found this script which should backup the directories i specify but the drive within the script is a DLT?

Any one know what needs to be changed for my DAT drive? i.e compression and density?


#!/bin/sh
# full and incremental backup script
# created 07 February 2000
# Based on a script by Daniel O'Callaghan <danny@freebsd.org>
# and modified by Gerhard Mourani <gmourani@videotron.ca <mailto:gmourani@videotron.ca>>
# modified for tape use by Chad Amberg <http://www.bluestream.org>

#Change the 3 variables below to fit your computer/backup

DIRECTORIES="/etc /home /opt /root /var" # directories to backup
BACKUPTO=/dev/st0 # where to store the backups
TAR=/bin/tar # name and locaction of tar

#You should not have to change anything below here

PATH=/usr/local/bin:/usr/bin:/bin
START=`date +%s`

# Daily full backup
NEWER=""
echo "***** start time"
date
echo
if mt -f /$BACKUPTO status | grep "ONLINE"; then
echo "***** finding sockets"
find $DIRECTORIES -type s > sockets
echo
echo "***** setting compression on"
mt -f /$BACKUPTO compression 1
echo
echo "***** setting type to DLT 35 Compressed"
mt -f /$BACKUPTO setdensity 0x85
echo
echo "***** archiving"
$TAR $NEWER -cf $BACKUPTO $DIRECTORIES --exclude-from=sockets --absolute-names --totals # --exclude-from=tbackup.ignore
echo
echo "***** tape-drive status"
mt -f /$BACKUPTO status
echo
echo "***** ejecting tape"
mt -f /$BACKUPTO offline
echo
echo "***** end time"
date
else
echo "***** WARNING TAPE DRIVE IS OFFLINE, NO BACKUPS PERFORMED"
fi
FINISH=`date +%s`
diff=$((FINISH - START))
echo -n "***** Total Run Time: "
HRS=`expr $diff / 3600`
MIN=`expr $diff % 3600 / 60`
SEC=`expr $diff % 3600 % 60`
if [ $HRS -gt 0 ]
then
echo -n "$HRS hrs. "
fi
if [ $MIN -gt 0 ]
then
echo -n "$MIN mins. "
fi
if [ $SEC -gt 0 ]
then
if [ $MIN -gt 0 ]
then
echo "and $SEC secs."
elif [ $HRS -gt 0 ]
then
echo "and $SEC secs."
else
echo "$SEC secs."
fi
fi

no one has a DDS2 DAt drive setup within Linux?