CentOS Stream 8
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GlusterFS 6 : Distributed Configuration
2021/03/22
 
Configure Storage Cluster with GlusterFS.
For example, create a distributed volume with 2 Nodes.
This example shows to use 2 Nodes but it's possible to use more than 3 Nodes.
                                  |
+----------------------+          |          +----------------------+
| [GlusterFS Server#1] |10.0.0.51 | 10.0.0.52| [GlusterFS Server#2] |
|   node01.srv.world   +----------+----------+   node02.srv.world   |
|                      |                     |                      |
+----------------------+                     +----------------------+
           ⇑                                             ⇑
     file1, file3 ...                             file2, file4 ...

 
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]
[2] Create a Directory for GlusterFS Volume on all Nodes.
[root@node01 ~]#
mkdir -p /glusterfs/distributed

[3] Configure Cluster like follows on a node. (it's OK to work on any node)
# probe nodes

[root@node01 ~]#
gluster peer probe node02

peer probe: success.
# confirm status

[root@node01 ~]#
gluster peer status

Number of Peers: 1

Hostname: node02
Uuid: 6a337c1e-1290-4f01-b887-eeb254077607
State: Peer in Cluster (Connected)

# create volume

[root@node01 ~]#
gluster volume create vol_distributed transport tcp \
node01:/glusterfs/distributed \
node02:/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
# confirm volume info

[root@node01 ~]#
gluster volume info


Volume Name: vol_distributed
Type: Distribute
Volume ID: 3707c8b7-1bb0-4a13-b4af-f1772542d140
Status: Started
Snapshot Count: 0
Number of Bricks: 2
Transport-type: tcp
Bricks:
Brick1: node01:/glusterfs/distributed
Brick2: node02:/glusterfs/distributed
Options Reconfigured:
transport.address-family: inet
nfs.disable: on
[4]
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