IT Training

RH436 Red Hat High Availability Clustering

Red Hat® High Availability Clustering (RH436) provides intensive, hands-on experience in deploying and managing shared storage and server clusters. In this 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 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

Who should attend this course?

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


Red Hat Certified System Administrator (RHCSA) exam (EX200) and associated courses or Red Hat Cerfitied Engineer (RHCE) exam (EX294) and associated courses.

Course content summary

  • 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.
  • Creating high availability clusters
    • Create a basic high availability cluster.
  • Managing cluster nodes and quorum
    • Manage node membership in the cluster and describe how it impacts cluster operation.
  • Isolating malfunctioning cluster nodes
    • Isolate unresponsive cluster nodes to protect data and recover services and resources after a failure.
  • Creating and configuring resources
    • Create basic resources and resource groups to provide highly available services.
  • Troubleshooting high availability clusters
    • Identify, diagnose, and fix cluster issues.
  • Automating cluster and resource deployment
    • Deploy a new high availability cluster and cluster resources using Ansible automation.
  • Managing two-node clusters
    • Operate two-node clusters while identifying and avoiding issues specific to a two-node cluster configuration.
  • Accessing iSCSI storage
    • Configure iSCSI initiators on your servers to access block-based storage devices provided by network storage arrays or Ceph storage clusters.
  • Accessing storage devices resiliently
    • Configure resilient access to storage devices that have multiple access paths.
  • Configuring LVM in clusters
    • Select, configure, and manage the correct LVM configuration for use in your cluster.
  • 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.
  • Eliminating single points of failure 
    • Identify and eliminate single points of failure in your cluster to decrease risk and increase average service availability.

Practical information






€ 3 800 + 21% VAT


Virtual Class


Guaranteed to run

Sessions in English
08 - 12/1/2024Book
15 - 19/4/2024Book
08 - 12/7/2024Book

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