Oracle Real Application Clusters (RAC) enables multiple servers to access a single Oracle database, offering high availability, scalability, and fault tolerance. This course is tailored for Oracle DBAs, system administrators, and infrastructure engineers who want to build expertise in cluster database environments, performance tuning, and mission-critical deployments. Learn how to set up and manage RAC databases in both on-premises and cloud-based architectures, with hands-on experience on Grid Infrastructure, ASM, SCAN, CRS, and Clusterware.
What is Oracle RAC?
Benefits of RAC: HA, Load Balancing, Scalability
RAC vs Single Instance vs Data Guard
Oracle Grid Infrastructure Overview
RAC Use Cases in Production Environments
Cluster Database Architecture
Oracle Clusterware & CRS (Cluster Ready Services)
Voting Disks & OCR (Oracle Cluster Registry)
SCAN (Single Client Access Name) and VIPs
Shared Storage Concepts & ASM (Automatic Storage Management)
Prerequisites for RAC Installation
Oracle RAC Hardware and OS Requirements
Installing Oracle Grid Infrastructure
Configuring ASM Disk Groups
Installing Oracle RAC Software (12c/19c)
Post-Installation Verification and Checks
Using srvctl and crsctl Utilities
Adding/Removing Nodes in RAC
Starting/Stopping Services in Cluster
RAC-Specific Parameters & Init.ora Files
Cluster Node Monitoring
Managing SCAN Listeners and Node Listeners
CRS and Resource Management
VIP Failover and Listener Registration
TAF (Transparent Application Failover)
Services Management with RAC
RAC Node Eviction Scenarios
RMAN in RAC Environments
RAC Backup Best Practices
Restoring RAC Instances
Handling Corrupt Disk or Node Failures
Disaster Recovery Planning with RAC + Data Guard
Diagnosing Interconnect & Cache Fusion
Monitoring Wait Events in RAC
Load Balancing and CPU Resource Distribution
Performance Views (GV$, V$) in RAC
AWR, ADDM, and ASH Reports in Cluster Mode
Log Files and Trace Diagnostics
OCR and Voting Disk Backup/Restore
Common CRS/ASM Errors & Fixes
Cluster Health Monitor
Debugging Node Reboots and Hang Scenarios
Oracle RAC on Oracle Cloud Infrastructure (OCI)
RAC in AWS EC2 (with Shared EBS)
Oracle Exadata RAC Overview
Automation with Ansible or Shell Scripting for RAC Maintenance
Build a 2-Node Oracle RAC Cluster
Simulate Node Failover and Recovery
Configure Load Balanced Services
RMAN Backup on Shared Storage
Performance Tuning on Live Cluster
RAC is a core skill for senior Oracle DBAs in large-scale systems
Gain high-availability and fault-tolerant cluster setup experience
RAC is used by banks, telecom, government, and healthcare organizations
Learn both on-premise and cloud deployment models
Opens up opportunities in infrastructure design and DBA leadership
RAC vs Data Guard vs GoldenGate Roles
Oracle Certified Expert (OCE) Path
Resume Building for High-Availability DBA Roles
Real-Time Troubleshooting Scenarios
Interview Prep (MNC RAC-Focused Questions)
🔍 Roles You Can Apply For:
Oracle RAC DBA
Senior Infrastructure DBA
High-Availability & DR Architect
Cloud DBA (with RAC on OCI or AWS)
Oracle Performance Tuning Specialist
💸 Expected Salary Range (India):
| Experience | Role | Avg Salary |
|---|---|---|
| 2–3 years | Jr. RAC DBA | ₹6 – ₹8 LPA |
| 3–5 years | Oracle RAC Administrator | ₹9 – ₹14 LPA |
| 5+ years | Lead RAC DBA / Infra Architect | ₹15 – ₹25+ LPA |
✅ Hands-On RAC Lab Environment (VM or Cloud)
✅ RAC Scripts & Automation Tools
✅ Troubleshooting Guidebook
✅ Resume + Interview Q&A Support
✅ Certificate of Completion
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