[CentOS] Incremental backups?
Mogens Kjaer
mk at crc.dk
Sat Mar 15 07:44:06 UTC 2008
Scott R. Ehrlich wrote:
...
> I'm looking at tar as an option, with its --incremental switch. Bacula
> uses a mysql database. I tried setting it up and it was not so easy, so
> I opted to use my time for other tasks. Same for Amanda.
I use:
cd /
tar cvlbf 512 /dev/nst0 \
--multi-volume --new-volume-script /usr/local/bin/mtxnext \
--ignore-failed-read \
--listed-incremental /home/root/backup/incremental_logfile \
. >$LOGDIR/root_$BACKUPDATE.log 2>&1
A full backup is done once every week, followed by daily incremental
backups: This is controlled by the tape status. Every Monday we
replace the tapes in the robot. So when no tape is loaded in the
drive this signals that a full backup must be done.
To make a full backup, I simply erase /home/root/backup/incremental_logfile
before doing the above command.
The mtxnext script selects the next tape on the robot
and waits for the robot to finish.
Mogens
--
Mogens Kjaer, Carlsberg A/S, Computer Department
Gamle Carlsberg Vej 10, DK-2500 Valby, Denmark
Phone: +45 33 27 53 25, Fax: +45 33 27 47 08
Email: mk at crc.dk Homepage: http://www.crc.dk
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