RozoFS is a scale-out NAS file system. RozoFS aims to provide an open source high performance and high availability scale out storage software appliance for intensive disk IO data center scenario. It comes as a free software, licensed under the GNU GPL v2. RozoFS provides an easy way to scale to petabytes storage but using erasure coding it was designed to provide very high availability levels with optimized raw capacity usage on heterogenous commodity hardwares.

RozoFS provide a native open source POSIX file system, build on top of a usual out-band scale-out storage architecture. The RozoFS specificity lies in the way data is stored. The data to be stored is translated into several chunks named projections using Mojette Transform and distributed across storage devices in such a way that it can be retrieved even if several pieces are unavailable. On the other hand, chunks are meaningless alone. Redundancy schemes based on coding techniques like the one used by RozoFS allow to achieve significant storage savings as compared to simple replication.

Check out the RozoFS docs for more info on how to get the most out of RozoFS.