BFS has a very limited FUSE client. There is another distributed file system that support full POSIX semantics with well tuned FUSE client, called MooseFS [1].

BFS has a very limited FUSE client. There is another distributed file system that support full POSIX semantics with well tuned FUSE client, called MooseFS [1]. My ex-employer used that in production for about 8 years, the biggest cluster has more than 2PB. Disclosure: I'm a MooseFS fan and contributor :) [1] http://moosefs.org/ http://moosefs.org/