Speaking of S3 compatible file storage, I had found LeoFS. I noticed it has a distributed architecture, erasure coding support, and most interestingly, NFS support, multi-dc replication, extensive monitoring, and looks like has been in production for a while.<p><a href="http:&#x2F;&#x2F;leo-project.net&#x2F;leofs&#x2F;" rel="nofollow">http:&#x2F;&#x2F;leo-project.net&#x2F;leofs&#x2F;</a><p>NFS support could be a game changer, like say allowing researchers or some departments just access files in a directory and use whatever tools they find are easier (ipython, machine learning etc) not having to know about S3.