I just got 3 new HDDs for my file-server.
I ordered 3 different drives from 2 manufacturers,
so they would not all fail at the same time.
However my Tranquill BBS only detects the WD 3TB drive and doesn't recognize the existence of the 2 Hitachi 3TB drives at all. :/
I hope to not have to send back the Hitachi drives and replace them with WD but to find a way to use them.
Update: For an unknown reason, later both drives where detected. One already had an EFI-partition. I had to delete that one to use pvcreate.