Queso's the expert here. And I'm going to agree with his "Yes".
My gut feeling is that you're not changing enough data to fill 8 drives anything like regularly, and that this is almost entirely something like FS scenery (or pr0n
) that is write-once read-only.
If so, I'd be inclined to consolidate into a NAS with at least the same capacity (using fewer, bigger, faster drives), and keep the old box powered off in a cupboard (possibly even off-site) as a cold back-up - leaving you with only the new stuff to back up.
But it depends how hard it is to recover all that stuff, and how important.
My friend and I applied for airline jobs in Australia, but they didn't Qantas.