ZFS Snaphost & Hardware RAID

[Proskurin Kirill]

Hello all.

I plan to set up backup server with 24x1Tb HDD and use ZFS with 
FreeBSD-8.0 on it.
I prefare to have "ZFS only" system but as I see there is no any easy 
way to do so.

I would like to use ZFS snapshots - is I undestand right what snaphots 
work OVER ZFS raidz\storage? So I can`t use hardware RAID and must make 
a raidz?

I would love to head any other suggestion about using FreeBSD with ZFS 
as backup server.

-- 
Best regards,
Proskurin Kirill