Before you can configure a GlusterFS volume, you must create a trusted storage pool consisting of the storage servers that provides bricks to a volume. A storage pool is a trusted network of storage servers. When you start the first server, the storage pool consists of that server alone. To add additional storage servers to the storage pool, you can use the probe command from a storage server that is already trusted. Do not self-probe the first server/localhost. The GlusterFS service must be running on all storage servers that you want to add to the storage pool. See for more information.

To create a trusted storage pool, add servers to the trusted storage pool The hostnames used to create the storage pool must be resolvable by DNS. To add a server to the storage pool: # gluster peer probe server For example, to create a trusted storage pool of four servers, add three servers to the storage pool from server1: # gluster peer probe server2 Probe successful # gluster peer probe server3 Probe successful # gluster peer probe server4 Probe successful Verify the peer status from the first server using the following commands: # 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)

To remove a server from the storage pool: # gluster peer detach server For example, to remove server4 from the trusted storage pool: # gluster peer detach server4 Detach successful