Cluster File Systems was a company that existed from 2001 until it was acquired by Sun Microsystems in 2007. It developed distributed file systems for high-performance computing, used at the largest supercomputers of the time.
Cluster File Systems
<a rel="nofollow" class="external free" href="https://asc.llnl.gov/computing_resources/bluegenel/talks/braam.pdf">https://asc.llnl.gov/computing_resources/bluegenel/talks/braam.pdf</a>