Coressence, my music server's raid is the TuneBank from Empirical Audio. Actually, it is from their Legacy division which is for pro audio. The drives can be hot removed and replaced. I really don't have any good ideas about backing up yours. Where you computer a Mac, you might inquire about using Time Machine. I know nothing about Windows machines, however.
I would talk with the Music Vault people about this.
I would talk with the Music Vault people about this.