Table of Contents

• Title and Copyright Information
• Preface
  • Audience
  • Documentation Accessibility
  • Related Documents
  • Conventions
• Part I Oracle Database High Availability Overview
  • 1 Overview of High Availability
    • What Is High Availability?
    • Importance of Availability
    • Cost of Downtime
    • Causes of Downtime
    • Chaos Engineering
    • Roadmap to Implementing the Maximum Availability Architecture
  • 2 High Availability and Data Protection – Getting From Requirements to Architecture
    • High Availability Requirements
    • A Methodology for Documenting High Availability Requirements
      • Business Impact Analysis
      • Cost of Downtime
      • Recovery Time Objective
      • Recovery Point Objective
      • Manageability Goal
      • Total Cost of Ownership and Return on Investment
    • Mapping Requirements to Architectures
      • Oracle MAA Reference Architectures
      • Bronze Reference Architecture
      • Silver Reference Architecture
      • Gold Reference Architecture
      • Platinum Reference Architecture
      • High Availability and Data Protection Attributes by Tier
  • 3 Features for Maximizing Availability
    • Oracle Data Guard
      • Oracle Active Data Guard
      • Oracle Data Guard Advantages Over Traditional Solutions
      • Data Guard and Planned Maintenance
        • Data Guard Redo Apply and Standby-First Patching
        • Data Guard Transient Logical Rolling Upgrades
        • Rolling Upgrade Using Oracle Active Data Guard
    • Oracle GoldenGate
    • Best Practice: Oracle Active Data Guard and Oracle GoldenGate
      • When to Use Oracle Active Data Guard
      • When to Use Oracle GoldenGate
      • When to Use Oracle Active Data Guard and Oracle GoldenGate Together
    • Recovery Manager
    • Oracle Real Application Clusters and Oracle Clusterware
      • Benefits of Using Oracle Clusterware
      • Benefits of Using Oracle Real Application Clusters and Oracle Clusterware
      • Oracle RAC Advantages Over Traditional Cold Cluster Solutions
    • Oracle RAC One Node
    • Oracle Automatic Storage Management
    • Fast Recovery Area
    • Corruption Prevention, Detection, and Repair
    • Data Recovery Advisor
    • Oracle Flashback Technology
      • Oracle Flashback Query
      • Oracle Flashback Version Query
      • Oracle Flashback Transaction
      • Oracle Flashback Transaction Query
      • Oracle Flashback Table
      • Oracle Flashback Drop
      • Restore Points
      • Oracle Flashback Database
      • Flashback Pluggable Database
      • Block Media Recovery Using Flashback Logs or Physical Standby Database
      • Flashback Data Archive
    • Oracle Data Pump and Data Transport
    • Oracle Replication Technologies for Non-Database Files
      • Oracle Advanced Cluster File System
      • Oracle Database File System
      • Oracle Solaris ZFS Storage Appliance Replication
    • Oracle Multitenant
    • Oracle Sharding
    • Oracle Restart
    • Online Reorganization and Redefinition
    • Zero Data Loss Recovery Appliance
    • Fleet Patching and Provisioning
    • Edition-Based Redefinition
  • 4 Oracle Database High Availability Solutions for Unplanned Downtime
    • Outage Types and Oracle High Availability Solutions for Unplanned Downtime
    • Managing Unplanned Outages for MAA Reference Architectures and Multitenant Architectures
  • 5 Oracle Database High Availability Solutions for Planned Downtime
    • Oracle High Availability Solutions for Planned Maintenance
    • High Availability Solutions for Migration
  • 6 Enabling Continuous Service for Applications
  • 7 Operational Prerequisites to Maximizing Availability
    • Understand High Availability and Performance Service-Level Agreements
    • Implement and Validate a High Availability Architecture That Meets Your SLAs
    • Establish Test Practices and Environment
      • Configuring Test and QA Environments
      • Performing Preproduction Validation Steps
    • Set Up and Use Security Best Practices
    • Establish Change Control Procedures
    • Apply Recommended Software Updates and Security Updates Periodically
    • Establish Disaster Recovery Environment
    • Establish and Validate Disaster Recovery Practices 
    • Establish Escalation Management Procedures
    • Configure Monitoring and Service Request Infrastructure for High Availability
      • Run Database Health Checks Periodically
      • Configure Monitoring
      • Configure Automatic Service Request Infrastructure
    • Exercise Capacity Planning
    • Check the Latest MAA Best Practices
• Part II Oracle Database High Availability Best Practices
  • 8 Overview of Oracle Database High Availability Best Practices
  • 9 Oracle Database Configuration Best Practices
    • Use a Server Parameter File (SPFILE)
    • Enable Archive Log Mode and Forced Logging
    • Configure an Alternate Local Archiving Destination
    • Use a Fast Recovery Area
    • Enable Flashback Database
    • Set FAST_START_MTTR_TARGET Initialization Parameter
    • Protect Against Data Corruption
    • Set the LOG_BUFFER Initialization Parameter to 128MB or Higher
    • Set USE_LARGE_PAGES=ONLY
    • Use Bigfile Tablespace
    • Use Automatic Shared Memory Management and Avoid Memory Paging
    • Use Oracle Clusterware
  • 10 Oracle Flashback Best Practices
    • Oracle Flashback Performance Observations
    • Oracle Flashback Configuration Best Practices
    • Oracle Flashback Operational Best Practices
    • Oracle Flashback Performance Tuning for Specific Application Use Cases
  • 11 Oracle Global Data Services Best Practices
    • Introduction to Global Data Services
      • Global Data Services Concepts
      • Key Capabilities of Global Data Services
      • Benefits of Global Data Services
    • Application Workload Suitability for Global Data Services
    • Global Data Services in Oracle Maximum Availability Architecture
    • Partial or Full Site Outage with Global Data Services
    • Global Data Services Configuration
      • High-Level Deployment Steps
      • Configuration Example
      • Configuration Best Practices
      • Using FAN ONS with Global Data Services
      • Application-Level Configuration
      • Configuring FAN for OCI Clients
      • Controlling Logon Storms
      • Graceful Application Switchover
      • Using Oracle Active Data Guard with Global Data Services
      • Using Oracle GoldenGate with Global Data Services
    • Global Data Services Failover Across Regions Flow
    • Global Data Services Limitations and Requirements
• Part III Oracle RAC and Clusterware Best Practices
  • 12 Overview of Oracle RAC and Clusterware Best Practices
• Part IV Oracle Data Guard Best Practices
  • 13 Overview of MAA Best Practices for Oracle Data Guard
  • 14 Plan an Oracle Data Guard Deployment
    • Oracle Data Guard Architectures
    • Application Considerations for Oracle Data Guard Deployments
      • Deciding Between Full Site Failover or Seamless Connection Failover
      • Full Site Failover Best Practices
      • Configuring Seamless Connection Failover
    • Assessing and Optimizing Network Performance
      • Gather Topology Information
      • Understanding Network Usage of Data Guard
      • Understanding Targets and Goals for Instantiation
      • Understanding Throughput Requirements and Average Redo Write Size for Redo Transport
      • Verify Average Redo Write Size
      • Understand Current Network Throughput
      • Optimizing Redo Transport with One and Many Processes
      • Using This Data
    • Determining Oracle Data Guard Protection Mode
    • Offloading Queries to a Read-Only Standby Database
  • 15 Configure and Deploy Oracle Data Guard
    • Oracle Data Guard Configuration Best Practices
      • Apply Oracle Database Configuration Best Practices First
      • Use Recovery Manager to Create Standby Databases
      • Use Oracle Data Guard Broker with Oracle Data Guard
        • Example Broker Installation and Configuration
        • Configure Redo Transport Mode
        • Validate the Broker Configuration
        • Configure Fast Start Failover
        • Fast Start Failover with Multiple Standby Databases
      • Set Log Buffer Optimally
      • Set Send and Receive Buffer Sizes
      • Set SDU Size to 65535 for Synchronous Transport Only
      • Configure Online Redo Logs Appropriately
        • Sizing Redo Logs
      • Use Standby Redo Log Groups
      • Protect Against Data Corruption
      • Use Flashback Database for Reinstatement After Failover
      • Use Force Logging Mode
      • Configure Fast Start Failover to Bound RTO and RPO (MAA Gold Requirement)
      • Configure Standby AWR
    • Configuring Multiple Standby Databases
      • Managing Oracle Data Guard Configurations with Multiple Standby Databases
      • Multiple Standby Databases and Redo Routes
        • Using the RedoRoutes Property for Remote Alternate Destinations
      • Fast Start Failover with Multiple Standby Databases
        • Setting FastStartFailoverTarget
        • Switchover with FastStartFailoverTarget Set
        • Fast-Start Failover Outage Handling
    • Oracle Active Data Guard Far Sync Solution
      • About Far Sync
        • Offloading to a Far Sync Instance
      • Far Sync Deployment Topologies
        • Case 1: Zero Data Loss Protection Following Role Transitions
        • Case 2: Reader Farm Support
        • Case 3: Cloud Deployment With Far Sync Hub
        • Far Sync High Availability Topologies
        • Choosing a Far Sync Deployment Topology
      • Far Sync Configuration Best Practices
      • Configuring the Active Data Guard Far Sync Architecture
        • Configuring the Far Sync Instances
        • Setting Up HA Far Sync Instances
        • Configuring Far Sync Instances with Oracle RAC or Oracle Clusterware
    • Encrypting a Database Using Data Guard and Fast Offline Encryption
  • 16 Tune and Troubleshoot Oracle Data Guard
    • Overview of Oracle Data Guard Tuning and Troubleshooting
    • Redo Transport Troubleshooting and Tuning
      • Gather Topology Information
      • Verify Transport Lag and Understand Redo Transport Configuration
      • Gather Information to Troubleshoot Transport Lag
      • Compare Redo Generation Rate History on the Primary
      • Evaluate the Transport Network and Tune
      • Gather and Monitor System Resources
      • Tune to Meet Data Guard Resource Requirements
      • Advanced Troubleshooting: Determining Network Time with Asynchronous Redo Transport
      • Tuning and Troubleshooting Synchronous Redo Transport
        • Understanding How Synchronous Transport Ensures Data Integrity
        • Assessing Performance in a Synchronous Redo Transport Environment
        • Why the Log File Sync Wait Event is Misleading
        • Understanding What Causes Outliers
        • Effects of Synchronous Redo Transport Remote Writes
        • Example of Synchronous Redo Transport Performance Troubleshooting
    • Redo Apply Troubleshooting and Tuning
      • Understanding Redo Apply and Redo Apply Performance Expectations
      • Verify Apply Lag
      • Gather Information
      • Compare Redo Generation Rate History on the Primary
      • Tune Single Instance Redo Apply
        • Evaluate System Resource Bottlenecks
        • Tune Redo Apply by Evaluating Database Wait Events
      • Enable Multi-Instance Redo Apply if Required
      • Addressing a Very Large Redo Apply Gap
      • Improving Redo Apply Rates by Sacrificing Data Protection
    • Role Transition, Assessment, and Tuning
      • Prerequisite Data Guard Health Check Before Role Transition
        • Every Quarter
        • One Month Before Switchover
        • Days Before Switchover
      • Data Guard Role Transition
      • Monitor Data Guard Role Transitions
        • Key Switchover Operations and Alert Log Tags
        • Key Failover Operations and Alert Log Tags
      • Post Role Transition Validation
      • Troubleshooting Problems During a Switchover Operation
        • Sources of Diagnostic Information
        • Retry Switchover After Correcting the Initial Problem
        • Rolling Back After Unsuccessful Switchover to Maximize Uptime
    • Data Guard Performance Observations
      • Data Guard Role Transition Duration
      • Application Throughput and Response Time Impact with Data Guard
  • 17 Monitor an Oracle Data Guard Configuration
    • Monitoring Oracle Data Guard Configuration Health Using the Broker
      • Detecting Transport or Apply Lag Using the Oracle Data Guard Broker
    • Monitoring Oracle Data Guard Configuration Health Using SQL
    • Oracle Data Guard Broker Diagnostic Information
    • Detecting and Monitoring Data Corruption
  • 18 Optimizing Automatic Failover in Common Scenarios to Minimize Downtime
    • Automatic Database Failover for Primary Database Outages
    • Automatic Data Integrity and Avoidance of Split Brain
    • Automatic Reconnect Following Any Outage That Results in Network Timeout
    • Automatic Reconnect Following Resolution of Standby Outage
    • Data Guard Broker Properties That Affect Outage Repair Times
    • Data Guard Standby Database Outage Repair
    • Oracle Active Data Guard Far Sync – Examples and Outage Scenarios
    • Primary Database Outage Repair
• Part V MAA Platinum and Oracle GoldenGate Best Practices
  • 19 MAA Platinum Reference Architecture Overview
  • 20 Overview of Oracle GoldenGate Best Practices
  • 21 Cloud Within Region: Configuring Oracle GoldenGate Hub for MAA Platinum
    • Overview of MAA GoldenGate Hub
    • Planning GGHub Placement in the Platinum MAA Architecture
      • Where to Place the MAA Primary GGHub and Standby GGHub
      • MAA GGHubs Placed in the Same OCI Region
    • Task 1: Configure the Source and Target Databases for Oracle GoldenGate
      • Step 1.1 - Configure the Databases
      • Step 1.2 - Create a GoldenGate Database Administrator User
      • Step 1.3 - Create the Database Services
    • Task 2: Deploy Oracle GoldenGate Maximum Availability Hub on Oracle Cloud Marketplace
    • Task 3: Configure the Oracle GoldenGate Environment
      • Step 3.1 - Create Database Credentials
      • Step 3.2 - Create an Oracle Net TNS Alias for Oracle GoldenGate Database Connections
      • Step 3.3 - Set Up Schema Supplemental Logging
      • Step 3.4 - Create the Autostart Profile
      • Step 3.5 - Configure Oracle GoldenGate Processes
  • 22 Cloud Across Regions: Configuring Oracle GoldenGate Hub for MAA Platinum
    • Overview of MAA GoldenGate Hub
    • Planning GGHub Placement in the Platinum MAA Architecture
      • Where to Place the MAA Primary GGHub and Standby GGHub
      • MAA GGHubs Placed in Different OCI Regions
    • Task 1: Configure the Source and Target Databases for Oracle GoldenGate
      • Step 1.1 - Configure the Databases
      • Step 1.2 - Create a GoldenGate Database Administrator User
      • Step 1.3 - Create the Database Services
    • Task 2: Prepare a Primary and Standby Base System for GGHub
      • Step 2.1 - Deploy an Oracle RAC 2-Node Cluster System
      • Step 2.2 - Remove the Standard Database and Rearrange the Disk Group Layout
      • Step 2.3 - Download the Required Software
      • Step 2.4 - Configure Oracle Linux To Use the Oracle Public YUM Repository
    • Task 3: Configure Oracle GoldenGate for the Primary and Standby GGHub
      • Step 3.1 - Install Oracle GoldenGate Software
      • Step 3.2 - Configure the Cloud Network
      • Step 3.3 - Configure ACFS File System Replication Between GGHubs in the Same Region
      • Step 3.4 - Create the Oracle GoldenGate Deployment
      • Step 3.5 - Configure Oracle Grid Infrastructure Agent (XAG)
      • Step 3.6 - Configure NGINX Reverse Proxy
      • Step 3.7 - Securing Oracle GoldenGate Microservices to Restrict Non-Secure Direct Access
      • Step 3.8 - Create a Clusterware Resource to Manage NGINX
      • Step 3.9 - Create an Oracle Net TNS Alias for Oracle GoldenGate Database Connections
    • Task 4: Configure the Oracle GoldenGate Environment
      • Step 4.1 - Create Database Credentials
      • Step 4.2 - Set Up Schema Supplemental Logging
      • Step 4.3 - Create the Autostart Profile
      • Step 4.4 - Configure Oracle GoldenGate Processes
  • 23 Cloud: Oracle GoldenGate Microservices Architecture on Oracle Exadata Database Service Configuration Best Practices
    • Overview of Oracle GoldenGate Microservices Architecture Configuration on Oracle Exadata Database Service
    • Task 1 - Before You Begin
    • Task 2 - Configure the Oracle Database for GoldenGate
    • Task 3 - Create a Shared File System to Store the Oracle GoldenGate Deployment
    • Task 4 - Install Oracle GoldenGate
    • Task 5 - Create the Oracle GoldenGate Deployment
    • Task 6 - Configure the Network
    • Task 7 - Configure Oracle Grid Infrastructure Agent
    • Task 8 - Configure NGINX Reverse Proxy
    • Task 9 - Create Oracle Net TNS Alias for Oracle GoldenGate Database Connections
    • Task 10 - Create a New Profile
    • Task 11 - Configure Oracle GoldenGate Processes
  • 24 Cloud MAA Platinum: Oracle GoldenGate Microservices Architecture Integrated with Active Data Guard
    • Overview
    • Task 1 - Before You Begin
    • Task 2 - Configure the Oracle Database for GoldenGate
    • Task 3 - Configure Oracle Database File System
    • Task 4 - Install Oracle GoldenGate
    • Task 5 - Create Oracle GoldenGate Deployment Directories
    • Task 6 - Network Configuration
    • Task 7 - Configure Standby NGINX Reverse Proxy
    • Task 8 - Configure Oracle Grid Infrastructure Agent
    • Task 9 - Create Oracle Net TNS Alias for Oracle GoldenGate Database Connections
    • Task 10 - Configure Oracle GoldenGate Processes
    • Example Distribution Path Target Change Script
  • 25 On-Premises: Configuring Oracle GoldenGate Hub
    • Overview of MAA GoldenGate Hub
    • Planning GGHub Placement in the Platinum MAA Architecture
      • Where to Place the MAA Primary GGHub and Standby GGHub
      • MAA GGHubs Placed in the Same Data Center
      • MAA GGHubs Placed in Different Data Centers
    • Task 1: Configure the Source and Target Databases for Oracle GoldenGate
    • Task 2: Prepare a Primary and Standby Base System for GGHub
    • Task 3: Configure Oracle GoldenGate for the Primary and Standby GGHub
    • Task 4: Configure the Oracle GoldenGate Environment
  • 26 On-Premises: Oracle GoldenGate Microservices Architecture with Oracle Real Application Clusters Configuration Best Practices
    • Summary of Recommendations when Deploying Oracle GoldenGate on Oracle RAC
    • Task 1: Configure the Oracle Database for Oracle GoldenGate
    • Task 2: Create the Database Replication Administrator User
    • Task 3: Create the Database Services
    • Task 4: Set Up a File System on Oracle RAC
    • Task 5: Install Oracle GoldenGate
    • Task 6: Create the Oracle GoldenGate Deployment
    • Task 7: Oracle Clusterware Configuration
    • Task 8: Configure NGINX Reverse Proxy
    • Task 9: Create Oracle Net TNS Alias for Oracle GoldenGate Database Connections
    • Task 10: Configure Oracle GoldenGate Processes
    • Task 11: Configure Autostart of Extract and Replicat Processes
  • 27 On-Premises MAA Platinum: Oracle GoldenGate Microservices Architecture Integrated with Active Data Guard
    • Prerequisites
    • Task 1: Configure the Standby Database for Oracle GoldenGate
    • Task 2: Modify the Primary Database Service
    • Task 3: Create the Standby Database Service
    • Task 4: Configure DBFS on the Standby Cluster Nodes
    • Task 5: Install Oracle GoldenGate Software
    • Task 6: Create Oracle GoldenGate Deployment Directories
    • Task 7: Configure the Standby NGINX Reverse Proxy
    • Task 8: Configure Oracle Clusterware
    • Task 9: Create Oracle Net TNS Aliases for Oracle GoldenGate Database Connections
    • Task 10: Configure Oracle GoldenGate Processes
    • Example Distribution Path Target Change Script
  • 28 Managing Outages for Oracle GoldenGate Hub
    • Managing Planned Outages
    • Managing Unplanned Outages
  • 29 Oracle GoldenGate Active-Active Guidance for Developers and Administrators
    • Preparing for Conflict Resolution
    • Best Practices for Active-Active Oracle GoldenGate Architecture
  • 30 Troubleshooting Oracle GoldenGate
    • Troubleshooting MAA GoldenGate Hub
      • Oracle GoldenGate Extract Failure or Error Conditions Considerations
      • Troubleshooting ACFS Replication
      • Troubleshooting Oracle GoldenGate
    • Troubleshooting Oracle GoldenGate on Oracle RAC
      • Example Configuration Problems
• Part VI Oracle Database Cloud Best Practices
  • 31 Overview of Oracle Database Cloud Best Practices
  • 32 Oracle Maximum Availability Architecture and Oracle Autonomous Database
    • Oracle Autonomous Database with Default High Availability Option (MAA Silver)
    • Oracle Autonomous Database with Autonomous Data Guard Option (MAA Gold)
    • Autonomous Database with Autonomous Data Guard Option and Oracle GoldenGate (MAA Platinum)
      • Implementing the MAA Platinum Solution
    • Maintaining Application Uptime
  • 33 Oracle Maximum Availability Architecture in Oracle Exadata Cloud Systems
    • Oracle Maximum Availability Architecture Benefits
    • Expected Impact with Unplanned Outages
    • Expected Impact with Planned Maintenance
    • Achieving Continuous Availability For Your Applications
    • Oracle Maximum Availability Architecture Reference Architectures in Oracle Exadata Cloud
  • 34 Oracle Maximum Availability Architecture for Multicloud
    • MAA Evaluations on Multicloud Solutions
      • Oracle Database Multicloud Evaluations by Oracle MAA
        • Network Evaluation
        • MAA Silver Architecture and Evaluation
        • MAA Gold Architecture and Evaluation
      • Oracle Maximum Availability Architecture Benefits
      • Expected Impact During Unplanned Outages
      • Expected Impact During Planned Maintenance
      • Achieving Continuous Availability For Your Applications
    • Oracle Maximum Availability Architecture for Oracle Database@Azure
      • Network Results
      • MAA Silver Network Topology and Evaluation
        • Application Network Layer on Azure
        • Backup and Restore Observations
      • MAA Gold Network Topology and Evaluation
        • Network Layer
      • Setting Up Networking Across Availability Zones
      • Setting Up Networking Across Regions
    • Oracle Maximum Availability Architecture for Oracle Database@Google Cloud
      • Network Results
      • MAA Silver Network Topology and Evaluation
        • Application Network Layer on Google Cloud
        • Backup and Restore Observations
      • MAA Gold Network Topology and Evaluation
        • Oracle Active Data Guard Principles for ExaDB-D on Google Cloud Configuration
        • Networking Between Primary and Standby Clusters
  • 35 Oracle Data Guard Hybrid Cloud Configuration
    • Benefits Of Hybrid Data Guard in the Oracle Cloud
    • MAA Recommendations for Using Exadata Cloud for Disaster Recovery
    • Security Requirements and Considerations
    • Platform, Database, and Network Prerequisites
      • Cloud Network Prerequisites
      • On-Premises Prerequisites
        • Evaluate Network Using oratcptest
        • Configuration
        • Implement MAA Best Practice Parameter Settings on the Primary Database
        • Validating Connectivity between On-Premises and Exadata Cloud Hosts
      • Prepare the Primary Database Environment
        • Create an ACFS Mount Point
        • Configure Transparent Data Encryption on the Source Database
        • Check the TDE Master Key Before Instantiation
        • Configure Online Redo Logs
        • Size Redo Logs
        • Enable Flashback Database
        • Investigate Log for Errors (TFA)
    • Instantiate the Standby Using Oracle DBaaS Tools
      • Task 1: Install DBaaSCA in the On-Premises Environment
      • Task 2: Prepare the Cloud Environment for Instantiation of the Standby Database
      • Task 3: Instantiate the Standby Database
        • Configure ACFS
        • Run dbaasca Operation prepareForStandby in the On-Premises Environment
        • Run dbaascli Operation configureStandby in the Cloud Environment
      • Task 4: Validate the Standby Database
      • Task 5: Implement Recommended MAA Best Practices
    • Data Guard Life Cycle Operations
    • Health Check and Monitoring
• Part VII Continuous Availability for Applications
  • 36 Configuring Continuous Availability for Applications
    • About Application High Availability Levels
    • Configuring Level 1: Basic Application High Availability
      • Step 1: Configure High Availability Database Services
        • Configure High Availability Services
        • Configure High Availability Services for Oracle Active Data Guard or Standby Roles
      • Step 2: Configure the Connection String for High Availability
      • Step 3: Ensure That FAN Is Used
      • Step 4: Ensure Application Implements Reconnection Logic
    • Configuring Level 2: Prepare Applications for Planned Maintenance
      • Recommended Option: Use an Oracle Connection Pool
      • Alternate Option: Use Connection Tests
      • Leverage Server-Side Operations for Planned Maintenance
    • Configuring Level 3: Mask Unplanned and Planned Failovers from Applications
      • Return Connections to the Connection Pool
      • Set FAILOVER_RESTORE on the Service
      • Restore Original Function Values During Replay
      • Side Effects
      • JDBC Configuration
      • Monitoring
    • Reference
      • Connection Time Estimates During Data Guard Switchover or Failover
      • Oracle Net TNS String Parameters
      • Connection Retry Logic Examples
      • Server-Side Planned Maintenance Command Examples
• Part VIII Oracle Multitenant Best Practices
  • 37 Overview of Oracle Multitenant Best Practices
  • 38 PDB Switchover and Failover in a Multitenant Configuration
    • PDB Switchover Use Case
      • Prerequisites
      • Configuring PDB Switchover
    • PDB Failover Use Case
      • Prerequisites
      • Additional Considerations
      • Configuring PDB Failover
    • Resolving Errors
    • Reference
      • Full Example Commands with Output
      • Keyword Definitions
      • Messages
      • Sample Oracle Database Net Services Connect Aliases
• Part IX Full Site Switch in Oracle Cloud or On-Premises
  • 39 Full Site Switch in Oracle Cloud or On-Premise
    • Performing Role Transitions Between Regions
    • Best Practices for Full Site Switchover
    • More Information About Full Site Switchover