I understand that ZFS prefers to have as much data about the drives as possible, and that the best thing to do is turn off RAID.
The hardware environment is a Dell PowerEdge 2850 with PERC 4/DC and four drives (73Gb each) installed out of six possible. The software is FreeNAS 8.0.2 with ZFS booting from USB key.
I've configured the RAID this way: each physical drive is a logical drive in a RAID 0. No special configurations were made beyond this.
Is this optimal for ZFS? How do I properly set this up under FreeNAS as a ZRAID? Do I want to?
In my reading it was said that one can't add a new disk to a ZRAID pool; is this still true? How would you go about adding two new disks in a redundant fashion to a zpool in FreeNAS?