Gotcha, thanks! In doing some more research, it looks like you could potential make mirrored vdevs of your smaller disks and then another for your larger drives and add them to the same pool. That may be a workaround to still be able to use ZFS, but I hadn’t heard of SnapRAID so I will definitely check that out, thanks!

You make a good point about just sucking it up and getting all new drives at a much larger capacity though. I am definitely starting to think about that option more closely. Its just obviously expensive as hell when you are also getting a new, much better spec’d, NAS box, haha. Serverpartdeals does have pretty good prices though all things considered so maybe I will bite the bullet and just got for it. Not sure what I’ll end up doing with 4 other perfectly good drives that total 24 TBs though! haha. Although I sure I will find something to do with them, haha. Thanks again for the input and insight. Very much appreciated.