BeeGFS is a parallel cluster file system that is designed to offer a high level of performance by transparently spreading user data across multiple servers. It has always been free to download and use, but at the International Supercomputing Conference in 2013 it was announced the software would eventually be made open source. That day has finally arrived and the source code for BeeGFS is now available for download (please note: it requires you to enter the reason for why you are downloading it).
The project has a relatively compact codebase, weighing in at about 25,000 lines of C++ code, and it is designed specifically for performance-critical environments, including converged setups where storage servers are used for compute jobs.
For more information, view the official press release.