Unfortunately we have had similar problems. RDMA in GlusterFS 3.3.x is not well (or even at all, maybe?) supported. Although I was able to mount a volume with "transport rdma" using "mount -t glusterfs masterib:/volume.rdma /volume" Note the ".rdma" after volume name. Due to the lack of rdma support in 3.3.x we decided to stick with plain IPoIB. Regards -- Bartek Krawczyk network and system administrator