TrueNas Scale with RAIDZ1 "Degraded" and one disk "Removed"

Ok thanks for your precise information.

I tried adding SDF but it can’t seem to find the disk.
I need to do a wipe of SDF disk before Replace the disk?

At this point I will try to proceed as suggested and rebuild the Raid with the PRAID card in IT mode but i need more time…

I ask you one last question, can I also try the option of adding the disk to the existing pool from the “Storage Dashboard” without carrying out the “Replace” (which doesn’t seem to work)?