Oracle RMAN Database Duplication by Darl Kuhn

By Darl Kuhn

RMAN is Oracle's flagship backup and restoration software, yet do you know it is also an efficient database duplication software? Oracle RMAN Database Duplication is a deep dive into RMAN's duplication function set, exhibiting how RMAN could make it quite a bit more straightforward for you as a database administrator to fulfill the numerous requests from builders and testers for database copies and refreshes to be used of their paintings. you will discover ways to make and refresh reproduction databases with a unmarried command, and naturally you could automate and agenda that command in order that builders and testers are provided with normal, recognized stable databases with none guide intervention in your half. quick and simple provisioning of databases for builders and testers is a driver within the circulate to cloud computing and virtualization. RMAN's powerful database duplication function set performs correct into this starting to be desire for ease of provisioning, allowing effortless duplication of known-good databases on call for, throughout working platforms equivalent to among Linux and Solaris, or even throughout garage environments reminiscent of whilst duplicating from a RAC/ASM surroundings to a single-node example utilizing usual dossier process garage. Oracle RMAN Database Duplication is your thorough consultant to offering awesome company price for your association in terms of quickly and straightforward provisioning of database duplicates in provider of improvement and checking out tasks.

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DBNEWID - Completed successfully. ora 3. ora to reflect the new database name: db_name=DUP_NEW 4. Set ORACLE_SID to reflect the new database name: $ export ORACLE_SID=DUP_NEW 5. Mount the database: $ sqlplus / as sysdba SQL> startup mount; 6. info Chapter 2 ■ Manual Duplication Techniques You can verify that the database has the new DBID assigned to it using the following: SQL> select dbid from v$database; DBID ---------1191846239 Now would be a good time to take a backup of the newly renamed database, recreate the password file (if using), and modify service name values in Oracle Net files.

Sql Here’s a small sample of the output from the prior script: executing command: SET NEWNAME executing command: SET NEWNAME ... dbf ... dbf RMAN> **end-of-file** All the data files have been restored to the new database server. dbf From the prior output you can see that the database name and temporary tablespace data file still don’t reflect the destination database (DUP). These will be modified in subsequent steps. info Chapter 2 ■ Manual Duplication Techniques 12. Next you need to apply any archive redo files that were generated during the backup.

That error message is fine. The recovery process will restore and recover archive redo logs contained in the backups, which should be sufficient to open the database. The recovery process doesn’t know when to stop applying archive redo logs and therefore will continue to attempt to do so until it can’t find the next log. 3790E+13 23-jan-2015 15:23:37 ... If you do have a file with a fuzzy status of YES, this indicates more redo logs need to be applied to the data file (normally this should not happen in this scenario).

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