Identifying disks in Volume

Hi all,

I have a ReadyNAS RN104 at the latest firmware version (6.6.1 at the time of typing) fully populated with WD Red 3TB drives, initially I started with 2 drives and I installed the drives using a Raid 1 format, later on when space was getting tight on the volume, I added the other 2 in the same format, giving me 2 volumes on 4 disks, this didn't work out so well as I needed a single volume for Apple Time Machine, so I deleted the 2nd volume, mirrored the two new disks to each other extended and striped the first volume across the two mirror pairs for a raid 1+0 setup of ~6TB.

Now I'm pretty sure (it was a while ago) that I used bays 1 + 3 for the first installation and 2 + 4 for the second, the problem is, I want to confirm this before messing with the setup and I am really not sure how to do this, none of the information obviously available in the admin page has anything that intuitively says this disk is mirroring that disk etc.

So oh great hive mind, where does the information live?

:-)

Regards,

Glenn.