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Oracle Data Guard 11gR2 Administration : Beginner's Guide

You're reading from   Oracle Data Guard 11gR2 Administration : Beginner's Guide If you're an Oracle Database Administrator it's almost essential to know how to protect and preserve your data. This is the perfect primer to Data Guard that covers all the bases with a totally practical, user-friendly approach.

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Product type Paperback
Published in Jun 2013
Publisher Packt
ISBN-13 9781849687904
Length 404 pages
Edition 1st Edition
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Toc

Table of Contents (19) Chapters Close

Oracle Data Guard 11gR2 Administration Beginner's Guide
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Pop Quiz Answers
1. Getting Started FREE CHAPTER 2. Configuring the Oracle Data Guard Physical Standby Database 3. Configuring Oracle Data Guard Logical Standby Database 4. Oracle Data Guard Broker 5. Data Guard Protection Modes 6. Data Guard Role Transitions 7. Active Data Guard, Snapshot Standby, and Advanced Techniques 8. Integrating Data Guard with the Complete Oracle Environment 9. Data Guard Configuration Patching 10. Common Data Guard Issues 11. Data Guard Best Practices Index

Time for action – enabling Active Data Guard using broker


If Data Guard is managed using a broker, it is always simple and even easier to manage it from Oracle 11gR2. When both broker and MRP are running on the standby, you can open the database at any time for reporting purposes.

  1. Check the configuration and state of the database as follows:

    DGMGRL> show configuration;
    Configuration - PACKT
      Protection Mode: MaxPerformance
      Databases:
        turkey_un - Primary database
        INDIA_UN  - Physical standby database
    Fast-Start Failover: DISABLED
    Configuration Status:
    SUCCESS
    DGMGRL>
    
    SQL> select db_unique_name,open_mode from v$database;
    DB_UNIQUE_NAME  OPEN_MODE
    --------------- --------------------
    INDIA_UN        MOUNTED
    SQL>
    SQL> !ps -ef|grep mrp
    oracle    4686     1  0 16:31 ?        00:00:00 ora_mrp0_INDIA
    oracle    4815  3948  0 16:35 pts/1    00:00:00 /bin/bash -c ps -ef|grep mrp
    Open Database for the use of Active Data Guard
    SQL> alter database open read only;
    Database...
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