I have been googling about the differences between them.

• Bacula has lots of roles
• BackupPC is easier to configure
• Bacula works with agent, not rsync (great for Windows backups)

It seems that Bacula is most often compared to Amanda though, while BackupPC seems a perfectly lovely and popular backup distribution to.

I currently backup my servers with rsnapshot, but I am looking for a professional scalable solution that could also back-up 50 hosts without problems. Preferably a solution that can offer bare metal restores for my Linux servers. I am not looking to reinstall the exact same version of Plesk, the software, etc...

Update: I see this ranks high in Google, I found a good article: http://www.serverfocus.org/backuppc-vs-bacula-vs-amanda. I personally think that BackupPC is good for smaller environment, but Bacula, despite the high learning curve, is better for environments that requilre scaling.