Debian 9 Stretch
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GlusterFS : Distributed Setting
2017/06/21
 
Configure Storage Clustering.
For example, create a distributed 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 [/var/lib/glusterfs] directory for GlusterFS Configuration on all Nodes.
[1]
[2] Create a Directory for GlusterFS Volume on all Nodes.
root@node01:~#
mkdir -p /var/lib/glusterfs/distributed

[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: a39156f3-32cb-451e-9e34-08ce504d72bb
State: Peer in Cluster (Connected)

# create volume

root@node01:~#
gluster volume create vol_distributed transport tcp \
node01:/var/lib/glusterfs/distributed \
node02:/var/lib/glusterfs/distributed

volume create: vol_distributed: success: please start the volume to access data
# start volume

root@node01:~#
gluster volume start vol_distributed

volume start: vol_distributed: success
# show volume info

root@node01:~#
gluster volume info


Volume Name: vol_distributed
Type: Distribute
Volume ID: ed7ba1eb-90d8-4f93-b9c7-0a08ba42c932
Status: Started
Snapshot Count: 0
Number of Bricks: 2
Transport-type: tcp
Bricks:
Brick1: node01:/var/lib/glusterfs/distributed
Brick2: node02:/var/lib/glusterfs/distributed
Options Reconfigured:
transport.address-family: inet
performance.readdir-ahead: on
nfs.disable: on
[4] If use NFS mount from Clients, Start required services first and also configure like follwos.
root@node01:~#
gluster volume set vol_distributed nfs.disable off

volume set: success
[5]
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