Alright thanks mikensan i decided to go raid 1+0 (raid 10) haha now my 12tb gives me 5.8 tb which is fine i want to know if one of my drives fail how do i repair the lost data do i just plug in a new hard drive and it will repair itself or do you need to do something. Im new to raid setups. But im very much liking the redundancy it helps alot incase of hardware failure.