Hello, never had any trouble with replacing bricks in the last years. But now the command fails with: Unable to set cli op: 16 What do i miss here ? Regards Heiko raid28 ~ # gluster volume replace-brick iup_data raid28:/data raid23:/data start replace-brick failed to start .... [2014-11-27 14:52:15.431563] E [glusterd-handler.c:1491:glusterd_handle_replace_brick] 0-: Unable to set cli op: 16 [2014-11-27 14:52:15.431655] E [glusterd-rpc-ops.c:61:glusterd_op_send_cli_response] (-->/usr/lib64/libgfrpc.so.0(rpcsvc_notify+0x123) [0x7fb015fc6453] (-->/usr/lib64/libgfrpc.so.0(rpcsvc_handle_rpc_call+0x2af) [0x7fb015fc5e2f] (-->/usr/lib/glusterfs/3.2.5/xlator/mgmt/glusterd.so(glusterd_handle_replace_brick+0x15b) [0x7fb013e7750b]))) 0-: Assertion failed: op_ctx [2014-11-27 14:52:15.431712] W [rpc-common.c:38:xdr_serialize_generic] (-->/usr/lib/glusterfs/3.2.5/xlator/mgmt/glusterd.so(glusterd_op_send_cli_response+0x421) [0x7fb013eaa3c1] (-->/usr/lib/glusterfs/3.2.5/xlator/mgmt/glusterd.so(glusterd_submit_reply+0x6a) [0x7fb013e9b76a] (-->/usr/lib/glusterfs/3.2.5/xlator/mgmt/glusterd.so(glusterd_serialize_reply+0x55) [0x7fb013e9b645]))) 0-xdr: XDR encoding failed [2014-11-27 14:52:15.431726] E [glusterd-utils.c:404:glusterd_serialize_reply] 0-: Failed to encode message [2014-11-27 14:52:15.431737] E [glusterd-utils.c:446:glusterd_submit_reply] 0-: Failed to serialize reply [2014-11-27 14:52:15.432980] W [socket.c:1494:__socket_proto_state_machine] 0-socket.management: reading from socket failed. Error (Transport endpoint is not connected), peer (127.0.0.1:1020) No log entries on the receiving side. Gluster Version: 3.2.5 New Raid OS: gentoo 3.16.5 Old Raid OS: gentoo 3.12.13 Gluster compiled from sources (always worked flawlessly)