Just in case anyone wants to take a look ...
https://raid.wiki.kernel.org/index.php/System2020
I'm finally building my new system, and I've got the host SUSE system
booting and enabling my dm-integrity protected raid 1s. This page
basically documents the story so far of setting it up, so other people
can use it as a cookbook for something similar.
Okay, I've still got to bootstrap the gentoo system that it's going to
be, but if anyone interested can take a look and give me advice for
improvements on the story that will be great.
Cheers,
Wol