Active DataGuard 11.2
Converting Physical Standby database to an Active Dataguard
This is a continuation of my previous articles on Oracle Dataguard 11.2. If you have inquiries, please let me know and I will be happy to answer them as soon as I can.
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Introduction:
Active Dataguard provides the capability
to have read-only access to a physical standby database. The standby database
can be used for queries, sorting, and reporting. For RMAN, it allows fast
incremental backups when offloading backups to a standby database. Converting a
physical standby database to an active Dataguard incurs additional licensing
fees.
Steps in converting Physical Standby database to Active Dataguard
1.
Follow
the steps presented in the section: Check
the redo transport and redo apply
2.
Convert
the physical standby database to active dataguard
If
coming from a functional physical standby:
SQL> alter database
recover managed standby database cancel;
SQL> alter database open;
SQL> alter database
recover managed standby database
disconnect;
If
coming from shutdown:
SQL> startup nomount;
SQL> alter database
mount;
SQL> alter database
recover managed standby database
disconnect;
SQL> alter database
recover managed standby database cancel;
SQL> alter database open;
SQL> alter database
recover managed standby database
disconnect;
3.
To
perform a switch-over or fail-over, follow the steps shown in the section: Validate the Dataguard Functionality (which is written on my previous article: Oracle DataGuard 11g R2 Administration)
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