Linux High Availability Clustering on RHEL 8 (2023)

Design & deploy HA cluster active/passive or active/active services using Pacemaker on Esxi and KVM lab environment
What you'll 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
Requirements
Linux Operating systems basic knowledge.
VMware ESXI
VMware workstation
RHEL 8.0 iso Or CentOS 8 ISo
internet and get access to RHEL 8 repo
RHEL 7 iso or CentOS 7 iso ( on KVM environment I used CentOS 7 .)
Description
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 .


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Who this course is for:
This course is designed for beginners
Anyone with a desire to learn about Linux high availability clustering

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