So when you’re setting up your server you will need to change 2 things for server to have raid 0 on / mounted partition.
First is the raid level should be at 6 or something like it, you’re going to want it to be 0
next is to remove /home and add all remaining space to / mount you can also remove the swap if you have a lot of ram anything more than 20Gb you won’t really need swap, it will just slow you down.
and changing hostname is not needed but you can if you’re feeling a need to.