Hey guys. I will be building a NAS. I'll probably buy a 4 or 5 diskless box and then add drives. I will go with 1 or 1.5 TB drives. Questions: Better to go 4 disks in Raid 5, or 5 disks in Raid 6? I know I get extra safety/redundancy with a Raid 6 array but, what will be the faster set up?