Linux High Availability Clustering on RHEL 8 (2022)

Design & deploy HA cluster active/passive or active/active services using Pacemaker on Esxi and KVM lab environment.

3.30 (42 reviews)
IT Certification
Linux High Availability Clustering  on RHEL 8 (2022)
8.5 hours
Jan 2022
last update
regular price

What you will learn

High availability cluster installation, configuration, managing and troubleshooting in RHEL8/CentOS8 on VMware Vspare .

Students should understand HA cluster concepts and how to manage different nodes, start/stop services

Managing Cluster Nodes and Quorum

Creating and Configuring Resources

install configure and mange Fencing service on vmware and KVM

About Order, Location & Colocation Constraints

iscsi target and initiator configuration

multi-pathing on iscsi server

Students will be able to build a high available and load balanced services

High availability cluster GUI interface


What is Linux Cluster ?

High availability clusters provide highly available services by eliminating single points of failure and by failing over services from one cluster node to another in case a node becomes inoperative. Typically, services in a high availability cluster read and write data (by means of read-write mounted file systems). Therefore, a high availability cluster must maintain data integrity as one cluster node takes over control of a service from another cluster node. Node failures in a high availability cluster are not visible from clients outside the cluster. (High availability clusters are sometimes referred to as failover clusters.) high availability service management component, Pacemaker.

I am covering below all points in this course .

Build And Configure our Lab:

Using Vmware Workstation.

Nested Esxi Server.

Build Virtual Machines Considered as our cluster nodes.

required networking for high available cluster .

Repository server configuration on RHEL 8 for high availability cluster

What is cluster ?

Cluster types:

1)Storage (ISCSI network to storage).

2)High Availability (Explain Cluster software components and how they are communicating to each other).

3)Load Balancing.

4)High performance

for more details please check course content .

You are welcome to add any kind of reviews bad or good but please review it based on the course curriculum and what value you've got.

I would like to remind you that Udemy gives you 30 days Money-Back Guarantee 100% No Questions Asked.

If you are interested in the course you can give it a try.




Lab Setup

Hardware and software requirements
VMware Workstation installation
VMware Vspare Installation on nested VMware Workstation
Create LAN segments on VMware workstation
Create virtual switches and virtual port groups on Esxi
Set Static IP to Esxi
Red Hat Enterprise Linux 8 Installation
Setting up network connections to nodes
Dnf or yum or repo server configuration in RHEL8 for High Availability Packages
setting up High Availability Packages repo to CentOS 8 from internet
Download High availability cluster packages in one folder
configure ssh login without password

Basic HA cluster installation and configuration

basic knowledge of Cluster and its Architecture
Basic cluster installation and configuration
Managing Cluster nodes
add remove nodes from cluster


Quorum Overview
Last_Man_Standing and Auto_Tie_Breaker Together
Result Or conclusion
Two node cluster issues

Constraints group and property set

Constraints group and property set theory
Constraints group and property set practice


Fencing Theory
Fencing Configuration

iSCSI target and initiator

iSCSI target and initiator theory
iSCSI target and initiator installation and configuration


multi-path theory
multipath practical

Cluster Resources

Cluster Resource theory
Creating and managing resources
nfs configuration steps in cluster
nfs installation and configuration

Active Passive environment or ext3, ext4, xfs filesystem environment

Active Passive environment or ext3, ext4, xfs filesystem environment theory
creating LVM with attached systemid
Active Passive nfs installation and configuration
Active passive Apache configuration steps
active passive apache installation and configuration

Active Active environment or GFS2 filesystem environment

Active Active environment or GFS2 filesystem environment
Active active configuration of LVM in cluster


Access monitor administrate cluster from web browser

HA Proxy Loadbalancing

HA proxy installation and configuration steps
HA proxy installation and configuration

Bonus Lectures: High availability clustering in CentOS 7 on KVM

KVM installation and configuration steps on CentOS 7
KVM installation and configuration
Basic HA cluster configuration steps in CentOS 7
Basic HA cluster configuration in CentOS 7
lvm with systemid

Thank you

thank you all of you !


June 16, 2020
Excellent Course. Full Happies after completing this Course. I learned a lot of stuff from this course. Thank you very much
June 16, 2020
I felt that the course was amazing and helped me a lot to learn new things about HA cluster. One thing I would like to go back and review some of the topics that I need to revise! Hope it is ok right :)
June 10, 2020
Very good content explained. This course definitely help in production environment. This course explained NFS, iscsi, pcs cluster, quoram, fencing,cluster file system, HA filesystem very well....
June 6, 2020
Thanks for covering all topics about HA cluster on RHEL8 . I really appreciate your hard work for building such a nice course.
April 12, 2020
It's very new and latest technology cource .. useful for everyone one fresher as wel as expirence people .
April 11, 2020
Thanks you for making this course it's very useful for fresher to experience . I grabbed so technical skills from this course .



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