Most importantly, ZFS provides a greatly simplified administration model. Through the use of a hierarchical file system layout, property inheritance, and automatic management of mount points and NFS share semantics, ZFS makes it easy to create and manage file systems without requiring multiple commands or the editing configuration files. You can easily set quotas or reservations, turn compression on or off, or manage mount points for numerous file systems with a single command. You can examine or replace devices without learning a separate set of volume manager commands. You can send and receive file system snapshot streams.
ZFS manages file systems through a hierarchy that allows for this simplified management of properties such as quotas, reservations, compression, and mount points. In this model, file systems are the central point of control. File systems themselves are very cheap (equivalent to creating a new directory), so you are encouraged to create a file system for each user, project, workspace, and so on. This design enables you to define fine-grained management points.