Rsnapshot

Quick recipe to configure rsnapshot.

These are the critical settings in /etc/rsnapshot.conf:

    snapshot_root   /mnt/1tb-external/snapshots/
    interval        daily   14
    interval        weekly  4
    interval        monthly 4

This will create a series of directories called daily.0 through daily.13 weekly.0 to weekly.3 ... etc.

>=Another example of rsnapshot configuration on amahi 5.1=

In this example automated backups are made to an external usb drive. Plug in the USB drive, it wil probably mount automatically under /media/yourdisklabel

First login as root in a terminal (putty or ssh root@hda) and type

mount

in the output, find which device is your usbdrive, possibly /dev/sdb1

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Format usb disk

You need to format the disk for rsnapshot to be able to use hard links. FAT formatting does not support this unfortunately.

umount /media/yourdisklabel

mkfs -t ext3 -v -L usbdisk /dev/sdb1

THIS WILL ERASE ALL DATA ON /dev/sdb1, MAKE SURE THIS IS YOUR USB DRIVE AND NOT ANOTHER DRIVE

Install rsnapshot

yum install rsnapshot

mkdir -p /media/usbdisk/.private/.snapshots

chmod 0700 /media/usbdisk/.private/

chmod 0755 /media/usbdisk/.private/.snapshots/

Mount your usbdisk permanently

To Mount your usbdisk permanently (so the backup will work after a reboot) do the following:

cp /etc/fstab /etc/fstab_bak

nano /etc/fstab

Add to this file

LABEL=usbdisk /media/usbdisk ext3 defaults 0 0

Save the file.

Modify rsnapshot configuration

nano /etc/rsnapshot.conf

make the following modifications to the file rsnapshot.conf for blank spaces use TABS!

snapshot_root /media/usbdisk/.private/.snapshots/

no_create_root 1

interval hourly 6

interval daily 7

interval weekly 4

interval monthly 12

verbose 3

backup /var/hda/files/docs/ localhost/

backup /var/hda/files/pictures/ localhost/

backup /var/hda/files/movies/ localhost/

backup /var/hda/files/music/ localhost/

backup /var/hda/files/othersharesyoumade localhost/

Save the file

rsnapshot configtest

this should return: syntax OK

Email reporting

for email reporting on your backups:

cp /usr/share/doc/rsnapshot*/utils/rsnapreport.pl /root

chmod 744 rsnapreport.pl

Automate backup with cronjob

crontab -l > cronjobs

nano cronjobs

add to this file for running rsnapshot and a weekly email report on rsnapshot:

0 */4 * * * /usr/bin/rsnapshot hourly 2>&1 | /root/rsnapreport.pl > /root/rsnapreport

30 23 * * * /usr/bin/rsnapshot daily

00 23 * * 1 /usr/bin/rsnapshot weekly

30 22 1 * * /usr/bin/rsnapshot monthly

00 22 * * 6 /usr/bin/rsnapshot du >> /root/rsnapreport | nail –r "somereturnadress@provider.com" -s"HDA backup report" -S smtp=smtp.yourprovider.com youremail@provider.com < /root/rsnapreport

Save the file

crontab cronjobs

Rsnapshot should now be operational.

Make your backups available on clients (READ ONLY)

If you want to make the backups accesible from your clients:

Create a //hda/backup share in the HDA webinterface

chkconfig nfs --level 2345 on

add a read only NFS export:

nano /etc/exports

add

/media/usbdisk/.private/.snapshots/ 127.0.0.1(ro,no_root_squash)

Save file

Unfortunately mounting an NFS share in fstab did not work on my machine after a reboot, so I chose an alternative configuration that mounts the share later in the booting process:

nano /etc/rc.local

Add

mount -r -t nfs localhost:/media/usbdisk/.private/.snapshots/ /var/hda/files/backup/

save file