Course Overview
High availability clustering can improve the reliability, availability, and resiliency of your mission-critical services, resulting in reduced downtime and easier hardware maintenance.
Red Hat has created this course in a way intended to benefit our customers, but each company and infrastructure is unique, and actual results or benefits may vary.
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.
Following course completion, you will receive 45-day extended access to hands-on labs for any course that includes a virtual environment.
Note: This course is offered as a five-day virtual class or self-paced. Durations may vary based on the delivery.
What you’ll learn
As a result of attending this course, you will be able to create, manage, and troubleshoot highly available network services and tightly coupled cluster storage for business-critical applications. Students should be able to demonstrate the following skills:
- Improve application uptime by using high availability clustering.
- Manage storage in a high availability environment using iSCSI initiators, HA-LVM, or LVM Shared Volume Groups as appropriate, and GFS2 cluster file systems.
- Implement strategies to identify and eliminate single points of failure in high availability clusters.
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.
Requirements
- Take our free assessment to gauge whether this offering is the best fit for your skills.
- Red Hat Certified System Administrator (RHCSA) exam (EX200) and associated courses
- Red Hat Cerfitied Engineer (RHCE) exam (EX294) and associated courses.
Target audiences
- Senior Linux system administrators who use high-availability clustering and fault-tolerant shared storage technologies to maximize resiliency of production services.
Curriculum
- 1 Section
- 12 Lessons
- 5 Days
- Topics12
- 1.1Creating high availability clusters Create a basic high availability cluster.
- 1.2Managing cluster nodes and quorum Manage node membership in the cluster and describe how it impacts cluster operation.
- 1.3Isolating malfunctioning cluster nodes Isolate unresponsive cluster nodes to protect data and recover services and resources after a failure.
- 1.4Creating and configuring resources Create basic resources and resource groups to provide highly available services.
- 1.5Troubleshooting high availability clusters Identify, diagnose, and fix cluster issues.
- 1.6Automating cluster and resource deployment Deploy a new high availability cluster and cluster resources using Ansible automation.
- 1.7Managing two-node clusters Operate two-node clusters while identifying and avoiding issues specific to a two-node cluster configuration.
- 1.8Accessing iSCSI storage Configure iSCSI initiators on your servers to access block-based storage devices provided by network storage arrays or Ceph storage clusters.
- 1.9Accessing storage devices resiliently Configure resilient access to storage devices that have multiple access paths.
- 1.10Configuring LVM in clusters Select, configure, and manage the correct LVM configuration for use in your cluster.
- 1.11Providing storage with the GFS2 cluster file system Use the GFS2 cluster file system to simultaneously provide tightly coupled shared storage that can be accessed by multiple nodes.
- 1.12Eliminating single points of failure Identify and eliminate single points of failure in your cluster to decrease risk and increase average service availability.
Instructor
