Existing pool not detected

[Chaserhued]

I have an old hdd with a pool on it. It was a raid with two hdd 2tb and 4tb. So the pool has the size of 2tb. If I click on storage>disks it shows that the 4tb hardrive has the pool on it with an (Exported). But when I want to import the pool it does not work. The option storage>import pool has no options. I want to create a new pool actually with an 8tb hdd as for now. Later I want to replace the 4tb hdd.

 

[Chaserhued]

I found the second hard drive and when both are plugged in the pool is detected.