Well I already have the 1TB SSD backing up its content when needed to the 1TB WD Blue that i happen to have from way early days. It’s not RAID because the Pi bottlenecks the speed, and since its Videos and Music its also not constantly changing Data.
And both Drives are a Backup. ^^
Also now your Username makes more sense to me but it also makes LESS sense to me at the same time! Which one of the two is your first name and which your family/last name? XD