I've read a fair bit about btrfs's subvolumes feature. While it would seem interesting to have subvolumes for the main categories in a data filesystem, such as @films, @pictures, @music... What advantage does this provide over just having folders?
Will I need to mount each subvolume? Or will the subvolumes appear like folders under the root mount point? i.e for a /data mount point will I have: /data/pictures, /data/music, etc