====== San Nas ======

http://www.openfiler.com/

Openfiler is a powerful, intuitive browser-based network storage software distribution. Openfiler delivers file-based Network Attached Storage and block-based Storage Area Networking in a single framework.

====== Opensource ZFS ======

From: http://www.pogostorage.com/

Open Storage provides all the features commonly found on proprietary systems at a significantly reduced cost, without the vendor lock-in typically associated with legacy, closed platform solutions.

Community Version