Ready for expansion (RN Pro Pioneer Edition)-Seeking Advice

StephenB wrote:

I was assuming you had a four slot unit. You can get more space by using your two empty slots. If you add 2 more disks ( 1 TB or greater) then your array will expand by 2 TB, and any extra will be wasted for now, until you upgrade the second pair to the larger size. You are still subject to the 8 TiB growth limit, so you couldn't expand the volume beyond 10 TiB unless you do a factory reset. So then the question becomes how big you want the larger drive size to be. It is more cost-effective to use bigger drives if you look at GB/dollar. But of course the drives do cost more. Also, your storage needs appear to be pretty small, since the 2 TB volume you have now has lasted you 4 years. ... Doing the same with 3 TB drives gives you (1) Adding 2x3TB costs you $260. You gain 2 TB of space (2) upgrading another pair costs you another $260. But you gain 4 TB of space. (3) upgrading the final pair costs you another $260. You gain another 4 TB, but you need to do a factory reset. (3a) upgrading just one of the final drives costs $130, and gains you 2 TB without the reset. Stopping at step (2) gives you 6 TB of growth for only $520 - $140 cheaper than going with 2 TB...

I have a question following the 'upgrade' path as described above.

First, I have basically completed step (1), adding a pair of 3TB's into Bays 5 and 6 and gaining 2 TB of space, giving me a total of 4 TB storage. Recall, Bays 1,2,3,4 each currently house 1TB's, and my RNPP is setup as Dual Redundancy X-RAID2 .

What happens if for step (2), instead of upgrading both Bay 1 and Bay 2's 1TB's with 3TB's, I only replaced Bay 1's (leaving Bay 2 with the 1TB) with a 3TB ? I believe I will NOT gain any space over what I have now...that it is not until both Bay 1 and Bay 2 are replaced with 3TB that I will gain any space, that is 4TB as noted in (2) above.

I am asking this question in case I see more errors with Bay 2's 1TB and I wish to replace it.

Thanks.