Hi, I'm using gluster 3.2.2 on 10 nodes. Each node have 2x2 TB disk for gluster. I manage to configure a distributed and replicated volume on 4 nodes : [root at node07 ~]# gluster volume info cluster Volume Name: cluster Type: Distributed-Replicate Status: Started Number of Bricks: 4 x 2 = 8 Transport-type: tcp Bricks: Brick1: node09:/gluster1 Brick2: node10:/gluster1 Brick3: node09:/gluster2 Brick4: node10:/gluster2 Brick5: node07:/gluster1 Brick6: node08:/gluster1 Brick7: node07:/gluster2 Brick8: node08:/gluster2 But I can't add new nodes to this volume [root at node07 ~]# gluster peer status Number of Peers: 5 Hostname: node10 Uuid: 212ce5a0-de51-4a98-9262-ae071c2d63a0 State: Peer in Cluster (Connected) Hostname: node08 Uuid: dd114546-5b94-4a62-9301-260703bf5707 State: Peer in Cluster (Connected) Hostname: node09 Uuid: f73fee83-8d47-4f07-bfac-b8a8592eff04 State: Peer in Cluster (Connected) Hostname: node06 Uuid: 3142fb9a-0a6b-46ec-9262-ede95e8f798a State: Peer in Cluster (Connected) Hostname: node05 Uuid: 13ffcf87-6e8d-4c6b-814a-cbc14d15d88b State: Peer in Cluster (Connected) [root at node07 ~]# gluster volume add-brick cluster node05:/gluster1 node06:/gluster1 node05:/gluster2 node06:/gluster2 Operation failed on node05 I try to detach nodes 5 and 6, restart glusterd do the probe and the add-brick but still nothing ... Did some one have any idea to fix this ? Thanks in advance, Laurent.