Oracle Database Data Guard Administration (12c and 19c)

In this practice, you will create an Oracle 12c single-instance database with ASM in a virtual machine. This database will be used in the practices of this course. If you already have your own virtual machine that has Oracle dabase 12c installed in it, you can use it and skip this practice. However, I recommend building up this machine because all the examples in the course were taken from a database with configuration and naming similar to the one built in this practice.

The practice document is attached to the lecture extras.

Note: you do not actually need to watch the video. You can go ahead and perform the steps in the attached installation document straight away. The video is there for reference.

Total practice expected duration: 60 minutes

This practice is to continue the practice in the previous lecture.

This is to download the course documents, including the course slides and practices, all from one place. 

Just download them from the downloadable resources section on this lecture.

This lecture introduces Oracle Data Guard. It explains the benefits of Data Guard and its limitations.

By end of this lecture, you should be able to describe and understand the following:

• What Is Oracle Data Guard?
• Data Guard Usages
• Data Guard Limitations

This lectures discusses the fundamental concepts of Oracle Data Guard.

After completing this lecture, you should be able to describe and understand the following topics:

• Oracle Data Guard Process Architecture
• Types of Data Guard Services
• Types of Standby Databases
• Data Guard Protection Modes

This lectures discusses the fundamental concepts of Oracle Data Guard.

By end of this lecture, you should be able to describe and understand the following:

• Role Transitions: Switchover and Failover
• Data Guard Management Tools
• Oracle Data Guard Broker Benefits
• Flashback Database and Data Guard

This small quiz will test your understanding of the Data Guard configuration. This is important before you go on the practical procedure to create a Data Guard configuration.

In this lecture you will learn the procedure you should follow to build a Physical Standby database. By the end of this lecture, you should be able to do the following:

• Understand Oracle Data Guard requirements
• Plan for creating a physical standby database
• Configure LOG_ARCHIVE_DEST_n parameter
• Create a physical standby databas

This lecture is part 2 of the previous lecture.

This practical lecture will take you through a hands-on tutorial that will show you the procedure to create a Physical Standby database.

You do not have to watch the video. You can download the guide document and follow the steps straight away. However, in case you found a stop unclear for you, you can refer to the video to observe how the step could be practically performed.

This is a continuation of the practice # 1, Part 2 of 3.

This is a continuation of the practice # 1, Part 3 of 3.

This lecture guides you on how to create a logical standby database. After completing this lecture, you should be able to do the following:

• Describe the benefits of logical standby database
• Describe the drawbacks of logical standby database
• The logical standby database practical usages
• Understand the unsupported objects and data types
• Perform the procedure to create a logical standby database

This lecture will take you through a tutorial that will show you the hands-on practical procedure to create a Logical Standby database.

Note: as in all the practices in this course, you do not have to watch the video. You can just download the practice document and implement the steps yourself straight away. You can still refer to the video clip to clarify how a step could be practically implemented.

In this lecture you will learn about the Data Guard Broker concepts and how to practically configure it. By the end of the lecture, you should be able to do the following:

• Understand the Broker capabilities, benefits, and limitations
• Describe the Data Guard Broker components
• Understand the Data Guard Broker Configuration Files
• Use the DGMGRL command-line interface
• Understand the Broker Properties
• Perform the procedure to configure the Data Guard Broker

This lecture is to continue the previous lecture.

This hands-on tutorial describes the steps to enable the Broker in an Oracle Data Guard environment that have a primary and a physical standby databases.

In this lecture you will learn the management considerations for the physical standby database.

For a physical standby database, you will learn how to do following:

• Start or stop redo apply services
• Specify time delay in the redo apply
• Upgrade or downgrade protection mode
• Handle NOLOGGING operations
• Describe how to use physical standby database for recovering from data corruption

In this practice we will upgrade the Protection Mode in our Data Guard configuration twice, first to Maximum Availability and second to Maximum Protection. We will study the how the primary database will respond in each case when the standby database becomes unavailable.

For a logical standby database, in this lecture you will learn how to do the following:

• Start and stop SQL Apply service
• Define the dataset replicated from the primary database
• Protect replicated tables on a logical standby database
• Handle unsupported tables
• Set the size of memory used by the SQL Apply processes

• Skip and un-skip specific object
• Handle unsupported datatypes
• Protect replicated tables on the logical standby database

• Use the alert log file and the V$DATAGUARD_STATUS to monitor the Data Guard
• Obtain the archive log gaps, transport lag, apply lag and active apply rate using SQL*Plus and the Broker
• Obtain information about the standby processes
• Obtain statistics about the logical standby database

In this practice you will use the tools to monitor a Data Guard configuration.

By completing this lecture, you should be able to do the following:

• Describe Data Guard Switchover
• Switchover to a physical standby database using the SQL*Plus
• Switchover to a logical standby database using the SQL*Plus
• Switchover using the Broker

By the end of this lecture, you should be able to do the following:

• Describe Data Guard Failover
• Failover to a physical standby database using the SQL*Plus
• Failover to a logical standby database using the SQL*Plus
• Failover using the Broker
• Reinstate the primary database after failover using SQL*Plus
• Reinstate the primary database after failover using the Broker

In this practice we will go through the full procedure to perform switchover and failover in the Data Guard using the Broker.

• Describe the advantages and drawbacks of Fast-Start Failover (FSFO)
• Describe the architecture of the Fast-Start Failover
• Configure the Fast-Start Failover
• Define the Fast-Start Failover conditions
• Enable the Fast-Start Failover
• Start the FSFO Observer
• Disable the Fast-Start Failove

In this practice we will implement and test the fast-start failover in a Data Guard configuration.

• Describe the Active Data Guard and its advantages
• Enable Active Data Guard and use real-time query
• Configure Apply Lag Tolerance
• Configure zero lag between the primary and standby databases
• Force redo apply synchronization in a Real-time Query Environment

This lecture describes how to create and then manage a snapshot standby database. The lecture will teach you how to do the following:

• Describe the snapshot standby databases and their benefits
• Convert a physical standby into a snapshot standby database
• Use a snapshot standby Database
• Convert a snapshot standby back to a physical standby database

In this practice you will learn how to enable and test the Active Data Guard option. You will also create a snapshot standby database.

In this lecture you will learn how to describe the following concepts:

• The meaning of client or application failover.
• The categories of the service failure that you might face in a data center.
• The challenges faced by a client failover
• The options to implement the client failover
• The procedure to implement client failover

By completing this lecture, you should be able to do the following:

• Create Oracle Database Services
• Configure the Outbound Connect Timeout
• Configure the OCI Client for Connect-time Failover
• Configure Transparent Application Failover (TAF)

In this practice we will enable the automatic client failover on a SQL*Plus client session.

In this lecture you should learn how to do the following:

• Describe the general best practices of using RMAN in a Data Guard configuration
• Manage the Data Guard databases in the Recovery Catalog
• Make the Data Guard related configuration in RMAN
• Recover a missing datafile in the primary database from a standby backup
• Refresh a physical standby database with changes made to the primary database

In this practice you will examine the considerations of using RMAN in a Data Guard environment

In this lecture, you will learn how to do the following:

• Describe the benefits of rolling upgrade
• Describe the benefits of using DBMS_ROLLING
• Understand the actions performed by the DBMS_ROLLING
• Perform the rolling upgrade process using the DBMS_ROLLING

In this tutorial, you will use rolling upgrade package (DBMS_ROLLING) to apply a patch set (PSU) on a Data Guard environment.

Practice Expected Time: 3 hours

The is part 2 of the practice 12.

This is part 3 (and the last part) of practice 12.

In this lecture, you will learn how to describe the concepts of the following:

• Cascaded Redo Transports
• Far Sync Instance
• Data Guard in a Multitenant Environment
• Oracle Data Guard and Oracle RAC

This tutorial demonstrates creating an Oracle 12c R2 Physical standby RAC database from a Primary RAC database.