Translations:Btrfs/9/en
From Manjaro
▶ subvolume
A Btrfs subvolume is an independently mountable POSIX file-tree and not a block device. It is the part of a volume that will be mounted writeable into your Linux system. By convention the names of subvolumes start with @ (@, @home, @snapshots ...). All subvolumes share the space of the Btrfs volume. You may create subvolumes at will. (You may think of subvolumes as sort of "dynamic partitions" inside a Btrfs volume)