I forgot to mention, that MooseFS fork - LizardFS is a fork of *old* MooseFS version - 1.6.27-5 which is a far behind 2.0.x (stable) or 3.0.x (curent / testing).
(Far behind = since MFS 1.6.x a lot of features have been added and a lot of improvements in algorithms have been made, full list is available in NEWS file in sources tarball). Best regards, -- Piotr Robert Konopelko