It‘s no RAID. Therefore the name. Unraid shows single shares and has different options for filling up drives. So you can access each individual drive via GUI or CLI, however in its functions as a NAS it only shows combined shares. Underneath you got Btrfs, XFS or ZFS as options.

Not everyone interested in self-hosting stuff has the time or is even interested in diving much deeper into it than necessary. That‘s why QNAP and Synology also offer value to homelabers.

Coming from Synology, where I had learned much about docker and CLI, Unraid was the perfect next step for me to get rid of my Sonology‘s shortcomings. And I figure, it won‘t need anything beyond that in the future for me. I‘ve been successfully running quite a lot of services for the whole family being supported by a sufficient GUI and very limited need for CLI.

Dunno. I come from Synology and my new Unraid server feels like heaven. Everything works and more importantly works blazingly fast in comparison.