I had two 2TB NVME SSDs mirrored as my cache pool. It showed the SIZE = 2TB, USED = 0 and FREE = 2TB in the dashboard.
After adding another 1TB NVME SSD to the cache it shows SIZE = 2.5TB, USED = 0 and FREE = 2TB (not 2.5TB as I would expect).
Any reason for this?
