RH436: Red Hat High Availability Clustering

Course Information

Course Name

RH436: Red Hat High Availability Clustering

Exam code

EX436

Duration

4 Days

Certification

Red Hat Certified Architect (RHCA)

Overview

Deploy reliable, available critical production services in a high availability cluster

In the Red Hat High Availability Clustering (RH436) course, you will learn how to provide highly available network services to a mission-critical enterprise environment through the deployment and management of shared storage and server clusters. Created for senior Linux system administrators, this 4-day course strongly emphasizes lab-based activities.

You will set up a cluster of systems running the Pacemaker component of the Red Hat Enterprise Linux High-Availability Add-On, and deploy Linux-based services such as web servers and databases on that cluster. Cluster storage components from the Resilient Storage Add-On are also covered; installations and applications that require multiple cluster nodes can access the same storage simultaneously. This includes Logical Volume Manager (LVM) Shared Volume Groups, Red Hat Global File System 2 (GFS2), and Device-Mapper Multipath.

This course is based on Red Hat Enterprise Linux 8.3.

Following course completion, hands-on lab access will remain available for up to 45 days for any live course that includes a virtual environment.

Audience Profile

Senior Linux system administrators who use high-availability clustering and fault-tolerant shared storage technologies to maximize resiliency of production services.

Prerequisites

• Red Hat Certified System Administrator (RHCSA) exam (EX200) and associated courses.

• Red Hat Certified Engineer (RHCE) exam (EX294) and associated courses.

At Course Completion

Install and configure a Pacemaker-based high availability cluster.

Create and manage highly available services.

Troubleshoot common cluster issues.

Work with shared storage (iSCSI) and configure multipathing.

Implement Logical Volume Manager (LVM) in cluster-aware configurations.

Configure GFS2 file systems on storage shared by multiple nodes.

Course Outline

Module 1: Creating high availability clusters

Create a basic high availability cluster.

Module 2: Managing cluster nodes and quorum

Manage node membership in the cluster and describe how it impacts cluster operation.

Module 3: Isolating malfunctioning cluster nodes

Isolate unresponsive cluster nodes to protect data and recover services and resources after a failure.

Module 4: Creating and configuring resources

Create basic resources and resource groups to provide highly available services.

Module 5: Troubleshooting high availability clusters

Identify, diagnose, and fix cluster issues.

Module 6: Automating cluster and resource deployment

Deploy a new high availability cluster and cluster resources using Ansible automation.

Module 7: Managing two-node clusters

Operate two-node clusters while identifying and avoiding issues specific to a two-node cluster configuration.

Module 8: Accessing iSCSI storage

Configure iSCSI initiators on your servers to access block-based storage devices provided by network storage arrays or Ceph storage clusters.

Module 9: Accessing storage devices resiliently

Configure resilient access to storage devices that have multiple access paths.

Module 10: Configuring LVM in clusters

Select, configure, and manage the correct LVM configuration for use in your cluster.

Module 11: Providing storage with the GFS2 cluster file system

Use the GFS2 cluster file system to simultaneously pProvide tightly coupled shared storage that can be accessed by multiple nodes.

Module 12: Eliminating single points of failure

Identify and eliminate single points of failure in your cluster to decrease risk and increase average service availability.

All Red Hat certification courses are conducted by certified trainers from Iverson.

Digital Methods acts as the official training partner and assists with program consultation, registration, coordination, scheduling, and administrative arrangements to ensure a seamless and professionally managed training experience.