Red Hat High Availability Clustering – RH436

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.


Što ćete naučiti

  • 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.

Kome je namijenjeno

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

Nastavni plan

  • 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.                                       

Za što vas priprema?

  • Red Hat Certified Specialist in High Availability Clustering exam (EX436)