glusterfs install

Heavily inspired from https://docs.gluster.org/en/latest/Quick-Start-Guide/Quickstart/

sudo sed -i 's/enforcing/permissive/g' /etc/selinux/config

sudo systemctl stop firewalld
sudo systemctl disable firewalld

sudo yum -y update

sudo yum -y install centos-release-gluster
sudo yum install -y glusterfs-server
sudo systemctl enable glusterd
sudo systemctl start glusterd

sudo mkfs.xfs -i size=512 /dev/sdc
sudo mkdir -p /data/brick1

sudo tee -a /etc/fstab <<-'EOF'
/dev/sdc /data/brick1 xfs defaults 1 2
EOF

sudo mount -a && mount

sudo mkdir /data/brick1/gv0

From "server1"

sudo gluster peer probe server2

Note: When using hostnames, the first server needs to be probed from one other server to set it's hostname.

From "server2"

sudo gluster peer probe server1

Note: Once this pool has been established, only trusted members may probe new servers into the pool. A new server cannot probe the pool, it must be probed from the pool.

Step 6 - Set up a GlusterFS volume

From any single server:

sudo gluster volume create gv0 replica 2 gluster1:/data/brick1/gv0 gluster2:/data/brick1/gv0
sudo gluster volume start gv0

Confirm that the volume shows "Started":

sudo gluster volume info