dell server

I would like to use two Dell PowerEdge R610 with proxmox and replication support. If I understood the docs correctly, replication is only available with zfs filesystem and zfs filesystem needs direct access to hard drives. My Dell PowerEdge R610 machines comes with PERC 6/i Integrated RAID...

So I have a Dell Server on Raid 6. Except when I was installing proxmox I now have a change to change how my root filesystem will be. Example I can choose RAID0, RAID1,RAID10, RAIDZ-1,RAIDZ-2,RAIDZ-3, xfs, ext3, ext4. Now my question is which one should I pick ? and should I keep my dell on...