Hello all, at the end I found the cause of my problems: if in the gluster-server is installed a Xeon-PHI (mic) card and the server is configured with a scif0 (virtual adapter for bridging withmic) device and a qib0 (you can see output of ibv_devinfo below) Gluster uses by default scif0 on which there is no RDMA support. So the question is: can we change device in any configuration file? Thank you in advance, Fedele # ibv_devinfo hca_id: scif0 transport: iWARP (1) fw_ver: 0.0.1 node_guid: 4c79:baff:fe66:0781 sys_image_guid: 4c79:baff:fe66:0781 vendor_id: 0x8086 vendor_part_id: 0 hw_ver: 0x1 phys_port_cnt: 1 port: 1 state: PORT_ACTIVE (4) max_mtu: 4096 (5) active_mtu: 4096 (5) sm_lid: 1 port_lid: 1000 port_lmc: 0x00 link_layer: Ethernet hca_id: qib0 transport: InfiniBand (0) fw_ver: 0.0.0 node_guid: 0011:7500:006f:7446 sys_image_guid: 0011:7500:006f:7446 vendor_id: 0x1175 vendor_part_id: 29474 hw_ver: 0x2 board_id: InfiniPath_QLE7340 phys_port_cnt: 1 port: 1 state: PORT_ACTIVE (4) max_mtu: 4096 (5) active_mtu: 2048 (4) sm_lid: 1 port_lid: 34 port_lmc: 0x00 link_layer: InfiniBand _______________________________________________ Gluster-users mailing list Gluster-users@xxxxxxxxxxx http://lists.gluster.org/mailman/listinfo/gluster-users