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

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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