Can I run a 2018 Man Mini (with T2 chip) using Mojave, rather than Catalina, using the normal Apple system security?

Thanks very much, I appreciate the detail.

It happened to two volumes on the lunch sleep, and two volumes on another sleep this afternoon. Jan 3 13:47:48 - SoftRAID Driver: A disk (disk3, S...

It turns out that was already disabled. (I think I had read it in the setup guide.) Let me know if I can do anything to help debug it.

Ok, this worked great, thanks for your help. (Appreciate the tip on pulling the primary.) What you did was fine, but if you want to move a disk t...