In classic Linux style, the new Rockstor Network Attached Storage solution
from the team at Rockstor, Inc., is free, open-source and versatile.
Supporting all popular file-sharing protocols, including NFS, Samba/CIFS
and SFTP, Rockstor is available as a complete Linux distribution in ISO
file format or a USB image and can be installed on bare metal or as a
virtual machine. Rockstor's underlying Linux distro is CentOS and the
supported filesystem is BTRFS. A pluggable Smart Probe mechanism and a
growing list of smart probes provide detailed on-demand information about
the various aspects of storage infrastructure. Rockstor supports advanced
features for businesses of all sizes ranging from small to large
enterprises—for example, snapshots, fast cloning, thin provisioning, dynamic
volume management and replication over WAN. The solution comes with a
clean, user-friendly Web UI to manage storage operations conveniently.
http://www.rockstor.com