The server has 24x 2.5" bays. I have an old SSD drive that I figure I could use as a last resort to be the Proxmox boot drive and then just use the NVMe’s as storage.

I was just hoping to have the Proxmox install/configuration in the NVMe RAID1 just for some minor safety in case a drive dies. From what I’ve read, this should be possible. I’m just lacking the knowledge to know what I’ve done wrong. (Mostly my lack of understanding the blkid results.)