I have a bunch of older 3, 4 and 6TB drives that aren't currently in my main system that i want to make use of. What are some suggested options to externally adding these to a drive pool? I saw this in one post IB-3680SU3 and have seen something like this before as well Mediasonic H82-SU3S2 is there anything i should be aware of to make this work optimally? I'll also have a few drives in my main system that would be part of the pool as well.