Database 12c Data Guard Administration

Tópicos Principais:

• Use Data Guard standby databases to support production functions such as reporting, querying, testing, and performing backups
• Create and manage physical and logical standby databases
• Use Enterprise Manager Cloud Control and the Data Guard command-line interface (DGMGRL) to maintain a Data Guard configuration
• Use Data Guard to achieve a highly available Oracle database
• Gain an understanding of Oracle Database Exadata Cloud Service

Introduction to Oracle Data Guard

• What Is Oracle Data Guard?
• Types of Standby Databases
• Types of Data Guard Services
• Role Transitions: Switchover and Failover
• Oracle Data Guard Broker Framework
• Choosing an Interface for Administering a Data Guard Configuration
• Oracle Data Guard: Architecture (Overview)
• Primary Database Processes

Networking for Oracle Data Guard

• Networking Overview
• Listener.ora Configuration
• Statics vs. Dynamic Registration
• Static Entries for Database Duplication and SQL Maintenence
• Static Entries for Broker Operations
• Oracle Network Configuration Tuning
• Tnsnames.ora Configuration

Creating a Physical Standby Database by Using SQL and RMAN Commands

• Steps to Create a Physical Standby Database
• Preparing the Primary Database
• FORCE LOGGING Mode
• Configuring Standby Redo Logs
• Creating Standby Redo Logs
• Using SQL to Create Standby Redo Logs
• Viewing Standby Redo Log Information
• Setting Initialization Parameters on the Primary Database to Control Redo Transport

Oracle Data Guard Broker: Overview

• Oracle Data Guard Broker: Features
• Data Guard Broker: Components
• Data Guard Broker: Configurations
• Data Guard Broker: Management Model
• Data Guard Broker: Architecture
• Data Guard Monitor: DMON Process
• Benefits of Using the Data Guard Broker
• Comparing Configuration Management With and Without the Data Guard Broker

Creating a Data Guard Broker Configuration

• Data Guard Broker: Requirements
• Data Guard Broker and the SPFILE
• Data Guard Monitor: Configuration File
• Data Guard Broker: Log Files
• Creating a Broker Configuration
• Defining the Broker Configuration and the Primary Database Profile
• Adding a Standby Database to the Configuration
• Enabling the Configuration

Creating a Physical Standby Database by Using Enterprise Manager Cloud Control

• Benefits of Implementing a Logical Standby Database
• Logical Standby Database: SQL Apply Architecture
• SQL Apply Process: Architecture
• Preparing to Create a Logical Standby Database
• Unsupported Objects
• Unsupported Data Types
• Checking for Unsupported Tables
• Checking for Tables with Unsupported Data Types

Creating and Managing a Snapshot Standby Database

• Snapshot Standby Databases: Overview
• Snapshot Standby Database: Architecture
• Converting a Physical Standby Database to a Snapshot Standby Database
• Activating a Snapshot Standby Database: Issues and Cautions
• Snapshot Standby Database: Target Restrictions
• Viewing Snapshot Standby Database Information
• Using DGMGRL to View Snapshot Standby Database Information
• Converting a Snapshot Standby Database to a Physical Standby Database

Using Oracle Active Data Guard

• Oracle Active Data Guard
• Using Real-Time Query
• Checking the Standby’s Open Mode
• Understanding Lag in an Active Data Guard Configuration
• Monitoring Apply Lag: V$DATAGUARD_STATS
• Monitoring Apply Lag: V$STANDBY_EVENT_HISTOGRAM
• Setting a Predetermined Service Level for Currency of Standby Queries
• Configuring Zero Lag Between the Primary and Standby Databases

Configuring Data Protection Modes

• Data Protection Modes and Redo Transport Modes
• Maximum Protection Mode
• Maximum Availability Mode
• Maximum Performance Mode
• Comparing Data Protection Modes
• Setting the Data Protection Mode by Using DGMGRL
• Setting the Data Protection Mode

Performing Role Transitions

• Role Management Services
• Role Transitions: Switchover and Failover
• Switchover
• Preparing for a Switchover
• Performing a Switchover by Using DGMGRL
• Performing a Switchover by Using Enterprise Manager
• Considerations When Performing a Switchover to a Logical Standby Database
• Situations That Prevent a Switchover

Using Flashback Database in a Data Guard Configuration

• Using Flashback Database in a Data Guard Configuration
• Overview of Flashback Database
• Configuring Flashback Database
• Configuring Flashback Database by Using Enterprise Manager
• Using Flashback Database Instead of Apply Delay
• Using Flashback Database and Real-Time Apply
• Using Flashback Database After RESETLOGS
• Flashback Through Standby Database Role Transitions

Enabling Fast-Start Failover

• Fast-Start Failover: Overview
• When Does Fast-Start Failover Occur?
• Installing the Observer Software
• Fast-Start Failover Prerequisites
• Configuring Fast-Start Failover
• Setting the Lag-Time Limit
• Configuring the Primary Database to Shut Down Automatically
• Automatic Reinstatement After Fast-Start Failover

Managing Client Connectivity

• Understanding Client Connectivity in a Data Guard Configuration
• Understanding Client Connectivity: Using Local Naming
• Preventing Clients from Connecting to the Wrong Database
• Managing Services
• Understanding Client Connectivity: Using a Database Service
• Creating Services for the Data Guard Configuration Databases
• Configuring Role-Based Services
• Adding Standby Databases to Oracle Restart Configuration

Backup and Recovery Considerations in an Oracle Data Guard Configuration

• Using RMAN to Back Up and Restore Files in a Data Guard Configuration
• Offloading Backups to a Physical Standby
• Restrictions and Usage Notes
• Backup and Recovery of a Logical Standby Database
• Using the RMAN Recovery Catalog in a Data Guard Configuration
• Creating the Recovery Catalog
• Registering a Database in the Recovery Catalog
• Setting Persistent Configuration Settings

Patching and Upgrading Databases in a Data Guard Configuration

• Upgrading an Oracle Data Guard Broker Configuration
• Upgrading Oracle Database in a Data Guard Configuration with a Physical Standby Database
• Upgrading Oracle Database in a Data Guard Configuration with a Logical Standby Database
• Using DBMS_ROLLING to Upgrade the Oracle Database
• Requirements for Using DBMS_ROLLING to Perform a Rolling Upgrade
• Leading Group Databases and Leading Group Master
• Trailing Group Databases and Trailing Group Master
• Performing a Rolling Upgrade by Using DBMS_ROLLING

Monitoring a Data Guard Broker Configuration

• Monitoring the Data Guard Configuration by Using Enterprise Manager Cloud Control
• Viewing the Data Guard Configuration Status
• Monitoring Data Guard Performance
• Viewing Log File Details
• Enterprise Manager Metrics and Alerts
• Data Guard Metrics
• Managing Data Guard Metrics
• Viewing Metric Value History

Optimizing a Data Guard Configuration

• Monitoring Configuration Performance by Using Enterprise Manager Cloud Control
• Optimizing Redo Transport Services
• Setting the ReopenSecs Database Property
• Setting the NetTimeout Database Property
• Optimizing Redo Transmission by Setting MaxConnections
• Setting the MaxConnections Database Property
• Compressing Redo Data by Setting the RedoCompression Property
• Delaying the Application of Redo

Oracle Database Exadata Cloud Service Overview

• Introducing Exadata Cloud Service
• Service Configuration, Connection, Architecture & Availability
• Data Security & Management Responsibilities
• Storage Configuration & Management Details
• Simple Web-Based Provisioning & Management
• REST APIs
• Backup and Recovery
• Migrating to Exadata Cloud Service