Chapter 4. Adding Servers to the Trusted Storage Pool
# firewall-cmd --get-active-zones
# firewall-cmd --zone=zone_name --add-service=glusterfs # firewall-cmd --zone=zone_name --add-service=glusterfs --permanent
gluster volume status VOLNAMEcommand is executed from two of the nodes simultaneously.
4.1. Adding Servers to the Trusted Storage Pool
gluster peer probe [server]command is used to add servers to the trusted server pool.
Adding Three Servers to a Trusted Storage Pool
glusterdservice must be running on all storage servers requiring addition to the trusted storage pool. See Chapter 25, Starting and Stopping the glusterd service for service start and stop commands.
Server1, the trusted storage server, is started.
- The host names of the target servers must be resolvable by DNS.
gluster peer probe [server]from Server 1 to add additional servers to the trusted storage pool.
Server1will result in an error because it is part of the trusted storage pool by default.
- All the servers in the Trusted Storage Pool must have RDMA devices if either
RDMA,TCPvolumes are created in the storage pool. The peer probe must be performed using IP/hostname assigned to the RDMA device.
# gluster peer probe server2 Probe successful # gluster peer probe server3 Probe successful # gluster peer probe server4 Probe successful
- Verify the peer status from all servers using the following command:
# gluster peer status Number of Peers: 3 Hostname: server2 Uuid: 5e987bda-16dd-43c2-835b-08b7d55e94e5 State: Peer in Cluster (Connected) Hostname: server3 Uuid: 1e0ca3aa-9ef7-4f66-8f15-cbc348f29ff7 State: Peer in Cluster (Connected) Hostname: server4 Uuid: 3e0caba-9df7-4f66-8e5d-cbc348f29ff7 State: Peer in Cluster (Connected)