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- Xref: sparky comp.unix.ultrix:9070 comp.unix.admin:6779
- Newsgroups: comp.unix.ultrix,comp.unix.admin
- Path: sparky!uunet!munnari.oz.au!metro!gtw
- From: gtw@arts.su.oz.au (Gilbert Taylor-Wood)
- Subject: Re: Backup procedure sought
- Message-ID: <root.725171071@plato.arts.su.oz.au>
- Keywords: Ultrix 4.3 backup dump tape date
- Sender: news@ucc.su.OZ.AU
- Nntp-Posting-Host: plato.arts.su.oz.au
- Organization: Sydney University Computing Service, Sydney, NSW, Australia
- References: <1992Dec22.145720.1684@dd.dk>
- Date: Thu, 24 Dec 1992 04:24:31 GMT
- Lines: 155
-
- wes@dd.dk (Mads Westermann) writes:
-
- >I need a backup procedure that (unattended) will bring the system
- >into single-user mode, do a full or an incremental backup on *ONE* tape
- >and then bring the system back into multi-user mode again.
-
- >Has anybody solved this problem ?? I'd very much appreciate if you
- >could enlighten me on this subject.
-
- Here is my solution. If anyone can improve on it I would like to know.
-
- Happy Christmas
-
- Gilbert
-
- Gilbert Taylor-Wood gtw@arts.su.edu.AU
- Network Manager
- Faculty of Arts A14 Ph +61 2 692 4713
- The University of Sydney Fax +61 2 692 2045
- NSW 2006
- AUSTRALIA SysAdmin: The ghost in the machine
-
-
- ***
- *** Put an entry in /etc/crontab to start this off.
- ***
-
- 0 1 * * 2,3,4,5,6 usr/bin/touch /tmp/DO_DUMP; shutdown -r 04:00 'System Backup'
-
- ***
- *** Modify /etc/rc to include the following
- ***
-
- [deleted stuff ]
- export DISKLESS
- }
-
- if test -f /tmp/DO_DUMP
- then
- DO_DUMP=true
- FSCK_OPTS=-n
- rm -f /tmp/DO_DUMP
- else
- FSCK_OPTS=-p
- fi
-
- /etc/startcpu >/dev/console
-
- date >/dev/console
- if [ $1x = autobootx ]
- then
- echo Automatic reboot in progress... >/dev/console
- /etc/fsck $FSCK_OPTS >/dev/console
- case $? in
- 0)
- ;;
- [stuff deleted]
- fi
- #
- # After successful fsck do backup if necessary
- if test $DO_DUMP = true
- then
- /bin/sh /etc/full_dump
- if test $? -ne 0
- then
- DUMP_STATUS=FAILED
- else
- DUMP_STATUS=succssfull
- fi
- fi
-
- [More deleted stuff that brings the system up to Multi-User ]
-
- sh /etc/rc.local
- echo 'preserving editor files' >/dev/console
- (cd /tmp; /usr/lib/ex3.7preserve -a)
- #
- # Mail results of Dump to root
- #
- if test $DO_DUMP = true
- then
- cat /tmp/full_dump.LOG | /usr/ucb/mail -u daemon \
- -s "$DUMP_STATUS dump of Plato" root
- fi
- echo clearing /tmp >/dev/console
- (cd /tmp; rm -f *; chmod 1777 /tmp)
-
- [finish off.... ]
-
- ***
- *** /etc/full_dump looks like
- ***
-
-
- #!/bin/sh
- #
- # This script is tailored for plato
- #
- cd /etc
- USER=daemon
- NICE=-15
- # On plato(two drives) /dev/nrmt1? is scsi tz (DAT) drive
- OUTDEV=/dev/nrmt1h
- FLAG=
- #LENGTH for tz SCSI tape drive(WangDat) is 60m(90Min)/90m(120min) (60m=195ft)
- #DENSITY for tz SCSI tape drive(WangDat) is 61000bpi Uncompressed (90m=292ft)
- # Fake the length to get the calculations to work.
- LENGTH=1818
- DENSITY=61000
- STATUS=good
- DONE=
- PROG=`basename $0`
- LOG=/tmp/${PROG}.LOG
- LIST="root users local usr var aufs0 aufs1 "
- for NAME in $LIST
- do
- case $NAME in
- root|/) DRIVE=rz3a
- usr|/usr) DRIVE=rz3d
- local|/local) DRIVE=rz3e
- users|/u0) DRIVE=rz3f
- aufs1) DRIVE=rz3g
- aufs0) DRIVE=rz2d
- var) DRIVE=rz2a
- *) echo $PROG: unrecognised filesystem
- esac
- KEY=0
- TYPE=full
-
- echo "File System $NAME $TYPE dump" > /dev/colsole
- echo "File System $NAME $TYPE dump" >> $LOG
- /etc/dump "$KEY"ufsd"$FLAG" $OUTDEV $LENGTH $DENSITY \
- /dev/r"$DRIVE" >> $LOG 2>&1
-
- # exit status of dump is 1 for success on ultrix !
- if test $? = 1
- then
- DONE=$DONE" $DRIVE"
- else
- STATUS=bad
- fi
- done
- if test $STATUS = bad
- then
- exit 1
- fi
- mt -f $OUTDEV rewind # was offline
- exit 0
- --
- Gilbert Taylor-Wood gtw@arts.su.edu.AU
- Network Manager
- Faculty of Arts A14 Ph +61 2 692 4713
- The University of Sydney Fax +61 2 692 2045
- NSW 2006
- AUSTRALIA SysAdmin: The ghost in the machine
-