GlusterFS : Replication Configuration2026/04/28

Configure Storage Clustering with GlusterFS.

For example, Create a Replication volume with 3 Nodes.

It's possible to create Replication volume with 2 Nodes but it's not recommended because split-brain syndrome maybe happens on [replica 2 volume]. As a countermeasure for split-brain, it is recommended to create volume with more than 3 Nodes or set [arbiter volume].

                                  |
+----------------------+          |          +----------------------+
| [GlusterFS Server#1] |10.0.0.51 | 10.0.0.52| [GlusterFS Server#2] |
|   node01.srv.world   +----------+----------+   node02.srv.world   |
|                      |          |          |                      |
+----------------------+          |          +----------------------+
                                  |
+----------------------+          |
| [GlusterFS Server#3] |10.0.0.53 |
|   node03.srv.world   +----------+
|                      |
+----------------------+

	It is strongly recommended to use partitions for GlusterFS volumes that are different from the / partition. On this example, it shows settings on the environment that all nodes has [sdb1] and mount it to [/glusterfs].
[1]	Install GlusterFS Server on All Nodes, refer to here.
[2]	Create a Directory for GlusterFS Volume on all Nodes.

root@node01:~#

mkdir -p /glusterfs/replica

[3]	Configure Clustering like follows on a node. (it's OK on any node)

# probe nodes

root@node01:~#

gluster peer probe node02

peer probe: success.
root@node01:~#

gluster peer probe node03

peer probe: success.

# confirm status

root@node01:~#

gluster peer status

Number of Peers: 2

Hostname: node02
Uuid: d9f491f8-fae2-4b6e-8945-b49d1368d49d
State: Peer in Cluster (Connected)

Hostname: node03
Uuid: 9c24b786-6f63-4496-a090-925b7d1624ab
State: Peer in Cluster (Connected)

# create volume

root@node01:~#

gluster volume create vol_replica replica 3 transport tcp \
node01:/glusterfs/replica \
node02:/glusterfs/replica \
node03:/glusterfs/replica

volume create: vol_replica: success: please start the volume to access data

# start volume

root@node01:~#

gluster volume start vol_replica

volume start: vol_replica: success

# confirm volume info

root@node01:~#

gluster volume info


Volume Name: vol_replica
Type: Replicate
Volume ID: d614e496-e7c9-4bb3-a2fd-cdcc05a73bc2
Status: Started
Snapshot Count: 0
Number of Bricks: 1 x 3 = 3
Transport-type: tcp
Bricks:
Brick1: node01:/glusterfs/replica
Brick2: node02:/glusterfs/replica
Brick3: node03:/glusterfs/replica
Options Reconfigured:
cluster.granular-entry-heal: on
storage.fips-mode-rchecksum: on
transport.address-family: inet
nfs.disable: on
performance.client-io-threads: off

[4]	To mount GlusterFS volume on Client Hosts, refer to here.

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