CERN still uses AFS extensively for all users&#x27; files. I believe they use a forked version of OpenAFS. My experience with it at CERN has been okay. It&#x27;s been fine to use locally, but transatlantic over the Internet can be very slow (it does work eventually though).<p>I&#x27;m not sure if there are any alternatives that work any better over long distance. I suppose CERN also has CVMFS [1], which is a read-only caching filesystem that retrieves the files from upstream via HTTP. This works much better, but it is read-only so only satisfies certain use cases.<p>[1] <a href="http:&#x2F;&#x2F;cernvm.cern.ch&#x2F;portal&#x2F;filesystem" rel="nofollow">http:&#x2F;&#x2F;cernvm.cern.ch&#x2F;portal&#x2F;filesystem</a>