Bareos backup server on freebsd vermaden gas efficient suv 2013

Bareos (Backup Archiving Recovery Open Sourced) is a network based open source backup solution. It is 100% open source fork of the backup project from site. The fork is in development since late 2010 and it has a lot of new features. The source is published on github and licensed under AGPLv3 license. Bareos supports ‘Always Incremental backup which is interesting especially for users with big data. The time and network capacity consuming full backups only have to be taken once. Bareos comes with WebUI for administration tasks and restore file browser. Bareos can backup data to disk and to tape drives as well as tape libraries. It supports compression and encryption both hardware-based (like on LTO tape drives) and software-based. You can also get professional services and support from Bareos as well as Bareos subscription service that provides you access to special quality assured installation packages.

I started my sysadmin job with backup system as one of the new responsibilities, so it will be like going back to the roots. As I look on the ‘backup’ market it is more and more popular – especially in cloud oriented environments – to implement various levels of protection like GOLD, SILVER and BRONZE for example. They of course have different retention times, number of backups kept, different RTO and RPO. Below is a example implementation of BRONZE level backups in Bareos. I used 3 groups of A, B and C with FULL backup starting on DAY 0 (A group), DAY 1 (B group) and DAY 2 (C group).

This way you still have FULL backups quite often and with 3 groups you can balance the network load. I for the days that we will not be doing FULL backups we will be doing DIFFERENTIAL backups. People often confuse them with INCREMENTAL backups. The difference is that DIFFERENTIAL backups are always against FULL backup, so its always ‘one level of combining’. INCREMENTAL ones are done against last done backup TYPE, so its possible to have 100+ levels of combining against 99 earlier INCREMENTAL backups and the 1 FULL backup. That is why I prefer DIFFERENTIAL ones here, faster recovery. That is all backups is about generally, recovery, some people/companies tend to forget that.

As every system needs to have its name we will use latin word closest to backup here – replica – for our FreeBSD system hostname. The install would be generally the same as in the FreeBSD Desktop – Part 2 – Install article. Here is our installed FreeBSD system with login prompt.

I assume that the primary storage would be mounted in the /bareos directory from one NFS server while Disaster Recovery site would be mounted as /bareos-dr from another NFS server. Below is example NFS configuration of these mount points. root@replica:~ # mkdir /bareos /bareos-dr

Lets create them then … root@replica:~ # cat > /usr/local/etc/bareos/bareos-dir.conf /usr/local/etc/bareos/bareos-fd.conf /usr/local/etc/bareos/bareos-sd.conf /usr/local/etc/bareos/bconsole.conf << __EOF @/usr/local/etc/bareos/bconsole.d/*

So we have a configured ready to make backups and restore Bareos Backup Server on a FreeBSD operating system. It can be used as an Appliance on any virtualization platform or also on a physical server with local storage resources without NFS shares.