GlusterFS : Add Nodes (Bricks)

Add Nodes (Bricks) to existing Cluster. For example, Add a Node [node03] to the existing Cluster like follows. | +----------------------+ | +----------------------+ | [GlusterFS Server#1] |10.0.0.51 | 10.0.0.52| [GlusterFS Server#2] | | node01.srv.world +----------+----------+ node02.srv.world | | | | | | +----------------------+ | +----------------------+ ⇑ | ⇑ file1, file3 ... | file2, file4 ... | +----------------------+ | | [GlusterFS Server#3] |10.0.0.53 | | node03.srv.world +----------+ | | +----------------------+

[1]	Install GlusterFS to a New Node, refer to here, and then Create a directory for GlusterFS volume on the same Path with other Nodes.
[2]	Add a New Node to existing Cluster on a node. (OK on any existing node)

# probe new node root@node01:~#  gluster peer probe node03 peer probe: success. # confirm status root@node01:~#  gluster peer status Number of Peers: 2 Hostname: node02 Uuid: f11a43b8-6d3d-4ae7-92ed-1f633699515c State: Peer in Cluster (Connected) Hostname: node03 Uuid: db6c7053-1ac4-4788-b91c-92a73cbb05e3 State: Peer in Cluster (Connected) # confirm existing volume root@node01:~#  gluster volume info Volume Name: vol_distributed Type: Distribute Volume ID: 4d2cd2d8-4d4c-4a0d-b06e-371a0d70aeeb Status: Started Snapshot Count: 0 Number of Bricks: 2 Transport-type: tcp Bricks: Brick1: node01:/glusterfs/distributed Brick2: node02:/glusterfs/distributed Options Reconfigured: features.quota-deem-statfs: on features.inode-quota: on features.quota: on storage.fips-mode-rchecksum: on transport.address-family: inet nfs.disable: on # add new node root@node01:~#  gluster volume add-brick vol_distributed node03:/glusterfs/distributed volume add-brick: success # confirm volume info root@node01:~#  gluster volume info Volume Name: vol_distributed Type: Distribute Volume ID: 4d2cd2d8-4d4c-4a0d-b06e-371a0d70aeeb Status: Started Snapshot Count: 0 Number of Bricks: 3 Transport-type: tcp Bricks: Brick1: node01:/glusterfs/distributed Brick2: node02:/glusterfs/distributed Brick3: node03:/glusterfs/distributed Options Reconfigured: features.quota-deem-statfs: on features.inode-quota: on features.quota: on storage.fips-mode-rchecksum: on transport.address-family: inet nfs.disable: on # after adding new node, run rebalance volume root@node01:~#  gluster volume rebalance vol_distributed fix-layout start volume rebalance: vol_distributed: success: Rebalance on vol_distributed has been started successfully. Use rebalance status command to check status of the rebalance process. ID: 6a0e2e99-ff14-48a1-bc8e-094e0ff37b23 # OK if [Status] turns to [completed] root@node01:~#  gluster volume status Status of volume: vol_distributed Gluster process TCP Port RDMA Port Online Pid ------------------------------------------------------------------------------ Brick node01:/glusterfs/distributed 60522 0 Y 1130 Brick node02:/glusterfs/distributed 55399 0 Y 1055 Brick node03:/glusterfs/distributed 51654 0 Y 4877 Quota Daemon on localhost N/A N/A Y 2344 Quota Daemon on node02 N/A N/A Y 1671 Quota Daemon on node03 N/A N/A Y 4894 Task Status of Volume vol_distributed ------------------------------------------------------------------------------ Task : Rebalance ID : 6a0e2e99-ff14-48a1-bc8e-094e0ff37b23 Status : completed