Tarsnap and full freebsd server backup

[Andy Hilker <ah@hilkeryan.de>]

Hi,

I am thinking of using tarsnap as a simple replacement for amanda.
That means I want to backup the whole freebsd server periodically
and in the case of a crash restore it with the fixit live cd.

Usually dump/restore is recommended for this use case, but what
about tarsnap? Is it possible, are there any caveats?  Does someone
use tarsnap for this and tested a full restore?

Sure, it is possible to use tarsnap just to backup /home, /etc,
/usr/local/etc and install a new system, build all ports again...
but this is not what i want, i really want a full backup.

Best regards,
Andy