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ORACLE-RAC

Duration : 2 Weeks
Category :Oracle,RAC, SQL

The objective of the Oracle RAC (Real Application Clusters) course is to provide learners with advanced skills to design, deploy, manage, and troubleshoot highly available, scalable, and resilient Oracle database environments using RAC technology. This course focuses on building a strong understanding of cluster architecture, shared storage, network configuration, ASM, clusterware components, load balancing, failover, and performance tuning in multi-node setups.

Learners will gain practical, hands-on experience in installing and configuring Oracle RAC, managing cluster resources, monitoring database performance, and ensuring continuous availability for mission-critical enterprise applications. The training emphasizes real-world scenarios, industry best practices, and the operational expertise required in clustered database environments.

By the end of the course, learners will be capable of supporting Oracle RAC infrastructures, optimizing high-availability systems, and performing DBA tasks in clustered environments—preparing them for roles such as RAC Administrator, Senior DBA, Infrastructure Engineer, and High-Availability Database Specialist.

  • Linux Installation in Virtual Box
  • Storage options to maintain RAC databases
  • NAS configure for RAC storage
  • IP Configure for RAC in Linux Machine
  • What is a Cluster?
  • Clusterware Characteristics
  • Oracle Clusterware
  • Hardware and Software Concepts (High level)
  • Shared Storage Overview
  • What is a Flex Cluster?
  • Cluster Storage Requirements
  • Clusterware Process Architecture
  • Location Independent Names, Addresses and Name Resolution (GNS, SCAN, VIP..)
  • Clusterware Initialization and OHASD
  • Shared Storage for Oracle Clusterware
  • Single Client Access Name for the Cluster
  • Redundant Interconnect Usage
  • Kernel Requirements
  • Groups and Users
  • Shell Settings
  • Oracle Validated Configuration
  • Checking System Requirements
  • Installing Oracle Grid Infrastructure
  • Verifying the Oracle Clusterware Installation
  • The ocrcheck Utility
  • The crs_stat Utility
  • The crsctl Utility
  • The Server Control (SRVCTL) Utility
  • SRVCTL ADD
  • SRVCTL CONFIG
  • SRVCTL ENABLE and DISABLE
  • SRVCTL GETENV
  • SRVCTL MODIFY
  • SRVCTL RELOCATE
  • SRVCTL REMOVE
  • SRVCTL START
  • SRVCTL STOP
  • The ocrdump Utility
  • About Oracle Clusterware
  • Adding and Removing Voting Disks
  • The OCR
  • Changing the OCR Configuration
  • Adding and Removing an OCR Location
  • Backing Up and Recovering the OCR
  • Restoring from Automatic OCR Backups
  • Moving or Replacing the OCR
  • Repairing the OCR Configuration
  • Troubleshooting the OCR
  • Adding Oracle Clusterware Homes
  • Prerequisites for Running addNode.sh
  • Adding a Node with addNode.sh
  • Configuring the node role
  • Removing a Node from the Cluster
  • Backing Up and Recovering Voting Disks
  • Overview of Services
  • Creating Services with DBCA
  • Creating Services with SRVCTL
  • Preferred and Available Instances for Services
  • Using Services
  • Managing Services
  • Service Views
  • Tracing with Services
  • Types of Services
  • Transparent Application Failover (TAF)
  • Configuring TAF on the Client
  • Configuring TAF on the Server
  • Using SRVCTL to Configure TAF
  • Client-Side vs Server-Side TAF
  • Oracle Clusterware Startup and Shutdown
  • Network Administration
  • What-If Command Evaluation
  • Clusterware Admin Tools Review
  • Administering the Oracle Cluster Registry Disk File
  • Types of Patches
  • Rolling Patches
  • OPatch Overview
  • Installing a Rolling Patch with OPatch
  • Obtaining Oracle Clusterware Patches
  • Diagnostic Framework Support for CRS
  • Component Level Checks – cluvfy with -comp
  • Troubleshooting Node Evictions
  • Log Files and Diagnostic Collection
  • The Column Utility
  • Cluster Health Monitor Enhancements Overview

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