Ubuntu 16.04
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GlusterFS : Replication Setting
2016/06/05
 
Configure Storage Clustering.
For example, create a Replication volume with 2 servers.
This example shows to use 2 servers but it's possible to use more than 3 servers.
                                  |
+----------------------+          |          +----------------------+
| [GlusterFS Server#1] |10.0.0.51 | 10.0.0.52| [GlusterFS Server#2] |
|   node01.srv.world   +----------+----------+   node02.srv.world   |
|                      |                     |                      |
+----------------------+                     +----------------------+

 
It is recommended to use partitions for GlusterFS volumes which are different from the / partition.
The environment on this example is set as that sdb1 is mounted on /glusterfs directory for GlusterFS Configuration on all Nodes.
[1]
[2] Create a Directory for GlusterFS Volume on all Nodes.
root@node01:~#
mkdir /glusterfs/replica

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

root@node01:~#
gluster peer probe node02

peer probe: success.
# show status

root@node01:~#
gluster peer status

Number of Peers: 1

Hostname: node02
Uuid: e8a3bcde-013e-4910-bbe6-0ce70d2e8feb
State: Peer in Cluster (Connected)

# create volume

root@node01:~#
gluster volume create vol_replica replica 2 transport tcp \
node01:/glusterfs/replica \
node02:/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
# show volume info

root@node01:~#
gluster volume info


Volume Name: vol_replica
Type: Replicate
Volume ID: 254b1be8-24f1-4d57-925e-5459ad506b51
Status: Started
Number of Bricks: 1 x 2 = 2
Transport-type: tcp
Bricks:
Brick1: node01:/glusterfs/replica
Brick2: node02:/glusterfs/replica
Options Reconfigured:
performance.readdir-ahead: on
[4]
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