Freenas, why is the volume not being created?

Question

FreeBSD

Hello. I installed FreeNAS on my computer, everything was fine until the volume was created.
There are two hard drives in the raid (mirror).
Through the "Volume Manager" I try to add a volume from these two hard drives, after clicking the "Add volume" button, the page is updated and nothing happens, i.e. volume does not appear.
UPD: I also noticed it gives an error.
Error: Unable to GPT format the disk "ada0".

Answer 1

It is necessary to remove (remove) the raid in the BIOS.