Complete newbie - Disk help please!

Hello, I just installed Bazzite as my first linux OS that I intend to daily drive. My computer has several drives and I want to do a few things.

1. I want to make sure that all my drives mount up when I boot my system and that I don't have to fiddle with this.
2. I have a pair of high capacity storage drives I want to put in simple RAID 1 so they mirror and behave like a single drive.

Thanks!