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RH436 - Red Hat High Availability Clustering Intermediate

The RH436 - Red Hat High Availability Clustering course equips senior Linux system administrators with skills to eliminate single points of failure and deploy highly available services using Pacemaker, GFS2, and shared storage, solving critical uptime challenges in enterprise environments where 99.999% availability is required. With over 400,000 Red Hat Certified Engineers globally, demand for high-availability expertise continues to grow.

This course prepares learners for the Red Hat Certified Specialist in High Availability Clustering exam (EX436), a key step toward RHCA certification. Koenig Solutions offers official vendor-authorized courseware and Guaranteed-to-Run dates, ensuring reliable access to expert-led training that translates into career advancement and mastery of mission-critical systems.

40 Hours (5 Days)
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32+ professionals trained

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Course Overview

The Red Hat High Availability Clustering (RH436) course by Red Hat is designed for senior Linux system administrators seeking expertise in deploying and managing highly available network services in mission-critical environments. This hands-on training prepares professionals for the Red Hat Certified Specialist in High Availability Clustering exam (EX436), a key credential for roles such as Cluster Administrator, Systems Engineer, and Site Reliability Engineer. With 98% of Fortune 500 companies relying on Red Hat Enterprise Linux for critical infrastructure, demand for certified clustering specialists continues to grow, making this course essential for IT professionals aiming to secure resilient enterprise systems.

Students in the RH436 program work extensively with core technologies including the Pacemaker component of the Red Hat Enterprise Linux High-Availability Add-On, Logical Volume Manager (LVM) Shared Volume Groups, Red Hat Global File System 2 (GFS2), and Device-Mapper Multipath. Through lab-intensive exercises, learners configure high-availability clusters, implement resilient storage solutions using iSCSI and multipathing, and deploy failover services such as databases and web servers. Using the Red Hat Learning Subscription lab environment, participants build a fully functional two-node cluster, automate deployment with Ansible, and troubleshoot real-world scenarios like node fencing and quorum loss to eliminate single points of failure.

This course directly prepares candidates for the performance-based EX436 certification exam, globally recognized for validating advanced clustering and storage management skills. Certified professionals report average salary increases of 20–30%, with Site Reliability Engineers and DevOps Specialists earning between $98,000 and $186,000 annually in the U.S. Koenig Solutions enhances learning with Guaranteed-to-Run scheduling, 1-on-1 mentorship, and official Red Hat courseware, ensuring mastery of complex clustering concepts. Graduates are positioned to lead high-availability initiatives, reduce system downtime, and advance into senior cloud reliability or enterprise architecture roles.

What You'll Learn

Configure Red Hat High Availability Clustering with Red Hat's Pacemaker to ensure continuous service availability
Manage cluster nodes and quorum effectively in Red Hat High Availability Clusters to maintain system integrity
Isolate malfunctioning nodes swiftly using Red Hat fencing mechanisms to prevent cluster disruption
Create and configure highly available resources within Red Hat High Availability Clusters for maximum uptime
Troubleshoot Red Hat High Availability Cluster issues efficiently to minimize downtime
Deploy clusters and resources seamlessly using Red Hat Ansible Automation for scalable high availability

Skills You'll Gain

Pacemaker Clustering Red Hat HA Add-On GFS2 File System Red Hat LVM Shared Volumes iSCSI Initiator Configuration Cluster Quorum Management STONITH Fencing Corosync Messaging HA-LVM Configuration Multipath I/O Cluster Resource Groups Service Failover Configuration Cluster Logging Cluster Monitoring Ansible Cluster Automation Two-Node Cluster Split-Brain Prevention

Prerequisites

Recommended knowledge before taking this course
  • Red Hat Certified System Administrator (RHCSA) certification or equivalent experience
  • Red Hat Certified Engineer (RHCE) certification or equivalent experience
  • Proficiency in Red Hat Enterprise Linux 8 or 9 command-line administration
  • Strong command-line skills for managing system services and configuration files
  • Solid understanding of TCP/IP networking, DNS, and static routing fundamentals
  • Experience configuring and managing Logical Volume Manager (LVM) storage
  • Familiarity with GFS2 file system administration
  • Foundational knowledge of high-availability concepts including clustering, fencing, and quorum management
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Certification Exam

Everything you need to know about the RH436 certification exam

Exam Details
Exam Name
RH436
Exam Cost
$530
Format
Multiple choice, labs & case studies
Questions
Duration
Passing Score
Validity
Retake Policy
Candidates receive one free retake for the RH436 - Red Hat High Availability Clustering exam if the first attempt fails. You must wait for official results before scheduling. Additional attempts require paying the full exam fee.
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Course Curriculum

Structured learning with hands-on labs and real-world scenarios

1
Day 1– Deploying Red Hat High Availability Clusters
Build a robust high availability cluster Configure secure node-to-node communication Monitor cluster health and operational status Deploy Pacemaker and Corosync services Manage essential cluster boot services Validate initial cluster environment setup Resolve common cluster startup errors Confirm node connectivity and fencing readiness
2
Day 2– Managing Cluster Nodes and Resources
Control cluster node membership effectively Configure quorum and expected vote counts Isolate unresponsive nodes via fencing Implement power switch fencing mechanisms Create and manage critical cluster resources Organize resources into logical groups Execute seamless resource failover processes Test recovery procedures for maximum uptime
3
Day 3– Storage and Cluster Configuration
Configure iSCSI initiators for shared access Implement resilient storage using multipathing Configure LVM for cluster-aware environments Create shared volume groups for clusters Deploy GFS2 cluster file systems efficiently Mount and manage GFS2 file systems Verify concurrent access to shared storage Resolve complex storage connectivity challenges
4
Day 4– Automation and Advanced Clustering
Automate cluster deployment using Ansible Streamline resource deployment via playbooks Manage stable two-node cluster configurations Configure quorum heuristics and tiebreakers Detect and mitigate single failure points Implement redundancy for critical components Troubleshoot advanced cluster performance issues Optimize cluster resilience and system performance

What's Included in Your Training

Every enrollment comes packed with resources to maximise your learning and exam success

Hands-On Lab

Live Lab Sandbox

Real Environment

Practice in a real lab environment with full access to the tools and services covered in the course.

30+ Guided Labs

30+

Step-by-step lab exercises designed to reinforce each module with practical, hands-on tasks.

Lab Manual Included

Full Guide

Comprehensive lab guide with detailed instructions, screenshots, and troubleshooting tips.

Post-Training Access

30 Days

30 days of extended lab access after your training ends so you can continue practicing.

Career Outcomes

88%

of RH436 certified professionals report career advancement within 6 months

Salary Impact

+32%

Average salary increase reported after obtaining the RH436 certification

Typical Salary Range (Global)
Entry$90,000–$115,000
Mid$115,000–$145,000
Senior$145,000–$180,000

*Source: Glassdoor / LinkedIn 2025

Job Roles

6
  • High Availability Architect
  • Cluster Administrator
  • Site Reliability Engineer (SRE)
  • Systems Engineer
  • Storage Engineer
  • Linux Systems Administrator

Companies Hiring

5,000+
Red Hat IBM Lockheed Martin Bank of America Infosys TCS Wipro Deloitte Accenture Capgemini

and 5,000+ organizations worldwide seeking RH436 certified professionals

Real Transformations

Course Student Reviews

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    “Passed AZ-104 on first attempt. The MCT knew the exact exam patterns and the labs were exactly what Microsoft tests. Worth every penny.”

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    “Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”

    Carlos R.

    Carlos R.

    Engineering Manager

    AZ-400 Team Training ✓ Verified
  • ★★★★★

    “Passed AZ-104 on first attempt. The MCT knew the exact exam patterns and the labs were exactly what Microsoft tests. Worth every penny.”

    Rahul M.

    Rahul M.

    Azure Administrator

    AZ-104 Certified ✓ Verified
  • ★★★★★

    “I trained 15 of my team members for SC-200. Koenig's on-site delivery was seamless and all 15 passed within 3 months.”

    Sarah K.

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    CISO, Financial Services

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  • ★★★★★

    “The 1-on-1 format was a game changer. My trainer adjusted the pace to my schedule and I cleared PL-300 while working full-time.”

    Ahmed R.

    Ahmed R.

    Business Intelligence Lead

    PL-300 Certified ✓ Verified
  • ★★★★★

    “Passed AZ-104 on first attempt. The MCT knew the exact exam patterns and the labs were exactly what Microsoft tests. Worth every penny.”

    Rahul M.

    Rahul M.

    Azure Administrator

    AZ-104 Certified ✓ Verified
  • ★★★★★

    “I trained 15 of my team members for SC-200. Koenig's on-site delivery was seamless and all 15 passed within 3 months.”

    Sarah K.

    Sarah K.

    CISO, Financial Services

    Enterprise Client ✓ Verified
  • ★★★★★

    “The 1-on-1 format was a game changer. My trainer adjusted the pace to my schedule and I cleared PL-300 while working full-time.”

    Ahmed R.

    Ahmed R.

    Business Intelligence Lead

    PL-300 Certified ✓ Verified
  • ★★★★★

    “From AZ-900 to AZ-305 in 6 months. Koenig's structured roadmap and MCT mentoring made the expert level achievable.”

    Priya S.

    Priya S.

    Cloud Solutions Architect

    AZ-305 Expert ✓ Verified
  • ★★★★★

    “As an L&D head I've used 5 training vendors. Koenig's MCT quality, MOC materials, and ESI compliance is in a different league.”

    James T.

    James T.

    Head of L&D, UK Enterprise

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  • ★★★★★

    “SC-900 and SC-300 back to back — both cleared first try. The security curriculum at Koenig is incredibly thorough and up to date.”

    Aisha N.

    Aisha N.

    Security Analyst

    SC-300 Certified ✓ Verified
  • ★★★★★

    “From AZ-900 to AZ-305 in 6 months. Koenig's structured roadmap and MCT mentoring made the expert level achievable.”

    Priya S.

    Priya S.

    Cloud Solutions Architect

    AZ-305 Expert ✓ Verified
  • ★★★★★

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    James T.

    James T.

    Head of L&D, UK Enterprise

    100+ Learners Trained ✓ Verified
  • ★★★★★

    “SC-900 and SC-300 back to back — both cleared first try. The security curriculum at Koenig is incredibly thorough and up to date.”

    Aisha N.

    Aisha N.

    Security Analyst

    SC-300 Certified ✓ Verified
  • ★★★★★

    “AI-102 was daunting but the trainer broke it down perfectly. Real Azure OpenAI labs made the difference. Highly recommend.”

    David L.

    David L.

    AI Engineer

    AI-102 Certified ✓ Verified
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    “DP-600 Fabric certification done in 3 weeks of part-time study. The customised schedule around my timezone was a lifesaver.”

    Mei W.

    Mei W.

    Data Platform Engineer

    DP-600 Certified ✓ Verified
  • ★★★★★

    “Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”

    Carlos R.

    Carlos R.

    Engineering Manager

    AZ-400 Team Training ✓ Verified
  • ★★★★★

    “AI-102 was daunting but the trainer broke it down perfectly. Real Azure OpenAI labs made the difference. Highly recommend.”

    David L.

    David L.

    AI Engineer

    AI-102 Certified ✓ Verified
  • ★★★★★

    “DP-600 Fabric certification done in 3 weeks of part-time study. The customised schedule around my timezone was a lifesaver.”

    Mei W.

    Mei W.

    Data Platform Engineer

    DP-600 Certified ✓ Verified
  • ★★★★★

    “Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”

    Carlos R.

    Carlos R.

    Engineering Manager

    AZ-400 Team Training ✓ Verified
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