[debian-lan-devel] Dirvish usb backup

[Julien Lambot]

I don't think it will be easy to automate the setup because it's highly
dependent on the external hdd's hardware, so, as Andi suggested, this might
better fit within the wiki.
It's a beta version. I still have to check the retention policy, improve
the backup script error management and monitoring

- /etc/udev/rules.d/50-usb-backup
(inspired by http://bernaerts.dyndns.org/linux/54-debian-udev-backup)
KERNEL=="sd?1", ACTION=="add", SUBSYSTEMS=="scsi", ATTRS{vendor}=="your
hardware    ", ATTRS{model}=="your model   ",
RUN+="/usr/local/bin/dirvish-usb %k"

Your hardware and your model must be replaced by values collected through:
udevadm info --name=/dev/sdX --attribute-walk | grep
"ATTRS{vendor}\|ATTRS{model}"

- plugging in the external hdd will trigger the script beneath RUN+
/usr/local/bin/dirvish-usb with the device as argument
Based on the default /etc/dirvish/dirvish-cronjob
#! /bin/sh
#
# daily cron job for the dirvish package
#

#EMAIL SETTINGS
SUBJECT="Backup Monitoring Report"
# Email To ?
EMAIL="you at yourdomain.loc"
# Email text/message
EMAILMESSAGE="/tmp/emailmessage.txt"
echo "Greetings $EMAIL ! "> $EMAILMESSAGE
echo "This is Backup Monitor speaking" >> $EMAILMESSAGE

#DIRVISH CHECK
if [ ! -x /usr/sbin/dirvish-expire  ]; then exit 0; fi
if [ ! -s /etc/dirvish/master.conf ]; then exit 0; fi

mydev=/dev/$1
mount $mydev /backup
logger "$mydev mounted on /backup"
logger `df |grep backup`

/usr/sbin/dirvish-expire --quiet && echo "expire result $?" >>
$EMAILMESSAGE && \
/usr/sbin/dirvish --vault usb-root && echo "backup /root result $?" >>
$EMAILMESSAGE && \
/usr/sbin/dirvish --vault usb-home0 && echo "backup /home result $?" >>
$EMAILMESSAGE && \
/usr/sbin/dirvish --vault usb-var && echo "backup /var result $?" >>
$EMAILMESSAGE && \
/usr/sbin/dirvish --vault usb-srv && echo "backup /srv result $?" >>
$EMAILMESSAGE && \
rc=$?
#logger "usb backup " $rc

# this should be sufficient but I didn't tested yet.
# /usr/sbin/dirvish-runall --quiet


sync
umount /backup || rc=$?
myPart=$1
myDisk=`echo $myPart | sed '$s/.$//'`
## eject $myDisk || rc=$?
/usr/bin/mail -s "$SUBJECT" "$EMAIL" < $EMAILMESSAGE
exit $rc

- Vaults must be defined on the ext3/4 formatted external hdd:

eg.:

usb-home0/dirvish/default.conf
client: mainserver
tree: /srv/nfs4/home0/
xdev: true
index: gzip
image-default: %Y%m%d
exclude:
        /lan/mainserver/home0/thome
        *.mp3
        *.MP3
        *.avi
        *.AVI
        *.wmv
        *.WMV
        *.mpg
        *.MPG


/etc/dirvish/master.conf
bank:
        /backup

#Boolean
# do not cross FS boundaries
xdev: 1
whole-file: 1

exclude:
        lost+found/
        .kde/share/cache/*
        .firefox/default/*/Cache/*
        *~
        .nfs*
        /etc/mtab
        /dev
        /lib/init/rw
        /srv/backup
        /usr/src/**/*.o
        /sys

Runall:
        usb-root
        usb-home0
        usb-var
        usb-srv
#       loc-var         22:00
#       loc-root        22:10

expire-default: +15 days
expire-rule:
#       MIN HR    DOM MON       DOW  STRFTIME_FMT
        *   *     *   *         1    +1 month
#       *   *     1-7 *         1    +1 year
#       *   *     1-7 1,4,7,10  1
#       *   10-20 *   *         *    +4 days
        *   10-20 *   *         *    +1 week
        *   *     *   *         2-7  +7 days

image-perm: 700
meta-perm: 600
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