Installing GlusterFS on CentOS 8

GlusterFS is an open-source distributed file system that allows you to create scalable and highly available storage solutions. It is designed to provide consistent file access across different servers, making it ideal for building shared storage pools and distributed file systems.

Step 1: Adding GlusterFS Repository

To install GlusterFS on CentOS 8, first, you need to add the GlusterFS repository to your system. Open a terminal on your CentOS 8 server and run the following commands:

$ sudo dnf install -y https://download.gluster.org/pub/gluster/glusterfs/LATEST/CentOS/glusterfs-latest.centos8.noarch.rpm

Step 2: Installing GlusterFS Packages

Once you have added the GlusterFS repository, you can proceed with the installation of the GlusterFS packages. Run the following command in the terminal:

$ sudo dnf install -y glusterfs-server

Step 3: Starting and Enabling GlusterFS Services

After the installation is completed, start and enable the GlusterFS services using the following commands:

$ sudo systemctl start glusterd
$ sudo systemctl enable glusterd

Step 4: Configuring Firewall

If you have a firewall enabled on your CentOS 8 server, you need to allow the GlusterFS services through it. Run the following commands to open the required ports:

$ sudo firewall-cmd --permanent --add-service=glusterfs
$ sudo firewall-cmd --reload

Step 5: Creating GlusterFS Volume

With GlusterFS installed and the services running, you can now proceed to create a GlusterFS volume. Run the following command to create a new volume:

$ sudo gluster volume create myvolume replica 2 transport tcp server1:/data/brick1 server2:/data/brick2 force

The above command creates a replicated volume named "myvolume" with two replicas and TCP as the transport protocol. Replace "server1" and "server2" with the IP addresses or hostnames of your servers, and "/data/brick1" and "/data/brick2" with the paths to the bricks on each server.

Step 6: Starting the GlusterFS Volume

Once the volume is created, start the volume using the following command:

$ sudo gluster volume start myvolume

Step 7: Mounting the GlusterFS Volume

Finally, you can mount the GlusterFS volume on client machines to access the shared storage. Run the following command on your client machine:

$ sudo mount -t glusterfs server1:/myvolume /mnt/glusterfs

This command mounts the GlusterFS volume "myvolume" from "server1" to the "/mnt/glusterfs" directory on the client machine.

Congratulations! You have successfully installed and configured GlusterFS on CentOS 8. You can now take advantage of the distributed file system for your storage needs.