[Dovecot] Backing Up

[Proskurin Kirill]

Hello all.

I read al this tread and still wondering - what FS best to use to
manage up to 1,5Tb of maildir spool and make a near to real time back up of it?

Firstly i plan to make it all on FreeBSD with UFS2  and use rsync, but
I never rsync such much of space and files.

If using solaris best is ZFS - but i don`t have any experience on this
OS.

What Linux can provide for this task?

-- 
Best reagrds,
Proskurin Kirill