GR8670-TB3 is built-in the easy-to-use hardware RAID, and it won't hurt system performance during its REBUILDING WORK completely! It would meet your requirement who always requests for both of system performance and the high memory capacity.GR8670-TB3 with RAID 5 or even RAID 6 feature would be your best cost-effective storage solution at both of data protection and the system performance. It's really easy for you to set up your new buy GR8670-TB3 in your office or even at home. Thru Marvell's MSU Tool, you could set up its hardware RAID thru a graphic user-friendly interface. You could choose one of the following different RAID modes, RAID 0, 1, 5, 6, 10 ,50, 60 and JBOD, to fit your needs for the available large storage space together with its data protection feature.