Power of OpenSolaris with usability of Linux.
Nexenta Core (NexentaOS) is a free and open source operating system combining the OpenSolaris kernel with the GNU/Debian user experience to provide a versatile and powerful ZFS-based server platform.
Nexenta Operating System runs on Intel/AMD 32/64bit hardware and is distributed as a single installable CD. Upgrades and binary packages not included on the CD can be installed from NexentaCore repository using Advanced Packaging Tool. In addition, source based software components can be downloaded from network repositories available at Debian/GNU Linux and Ubuntu Linux.
Download: NexentaCore 2.0