RH436 – Red Hat High Availability Clustering
Deploy reliable, available critical production services in a high availability cluster.
Course description
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.
Note: Course outline is subject to change with technology advances and as the nature of the underlying job evolves
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.
Prerequisites
- Red Hat Certified System Administrator (RHCSA) exam (EX200) and associated courses.
- Red Hat Cerfitied Engineer (RHCE) exam (EX294) and associated courses.
Audience
Outline
Create a basic high availability cluster.
Manage node membership in the cluster and describe how it impacts cluster operation.
Isolate unresponsive cluster nodes to protect data and recover services and resources after a failure.
Create basic resources and resource groups to provide highly available services.
Identify, diagnose, and fix cluster issues.
Deploy a new high availability cluster and cluster resources using Ansible automation.
Operate two-node clusters while identifying and avoiding issues specific to a two-node cluster configuration.
Configure iSCSI initiators on your servers to access block-based storage devices provided by network storage arrays or Ceph storage clusters.
Configure resilient access to storage devices that have multiple access paths.
Select, configure, and manage the correct LVM configuration for use in your cluster.
Use the GFS2 cluster file system to simultaneously pProvide tightly coupled shared storage that can be accessed by multiple nodes.
Identify and eliminate single points of failure in your cluster to decrease risk and increase average service availability.
