I have a 1TB pool. When I click show drives it only shows one drive in the pool:
ST1000DL002-9TT153 1TB
When I go to expand I try to use this drive under my unused drives: HGST HTS721010A9E630 1TB
It says the pool has expanded, the UI will update to show this but then,,, it just doesn't.
Any ideas what I need to do to have more than 1 drive in this pool?