I plan to use a Mac Mini to mount a set of hard drives for storage and data backup. The hard drives to be mounted are 2 x 4TB and 2 x 8TB, with the 2 x 4TB ones requiring RAID 1 for backup purposes. Due to my limited knowledge in this area, I seek advice from experts. Specifically, I would like to know: (1) what type of device should I choose to mount these hard drives? (2) Can devices like IronWolf or OWC ThunderBay satisfy this requirement? (3) Does a disk enclosure require RAID functionality? I understand that macOS can directly create RAID 1, so is it not necessary to have RAID functionality in the disk enclosure? Thank you.