Why do we need a connection to the Source DB for RMAN DUPLICATE ?
Version Info: 11.2.0.3/RHEL 5.8
We want to clone a Production DB to a test DB.
Prod DB size: 100gb
We are going to take an RMAN full backup (Hot Backup which includes Archivelogs ) and scp the backup pieces to the Test DB server.
In the Test server , we will be running RMAN DUPLICATE command after connecting like below
rman target sys/passwd@SID_OF_SOURCE_DB auxiliary /We have everything we need in test server to do the cloning ie. all the RMAN Backup pieces. Then why does RMAN connect to the source DB ?
from [url http://docs.oracle.com/cd/E11882_01/backup.112/e10643/rcmsynta020.htm] here
Backup-based duplication without a target connection
RMAN creates duplicate files from pre-existing RMAN backups and copies. The DUPLICATE command must have been issued with the DATABASE clause. This form requires a connection to an auxiliary instance and a recovery catalog.
This mode is useful when the target database is not available or a connection to it is not desirable (as mandated by security policy restrictions or a firewall).
Backup-based duplication without connection to target and recovery catalog
RMAN creates duplicate files from RMAN backups and copies that were placed in a designated BACKUP LOCATION.http://dbaregistry.blogspot.com/2011/04/rman-duplicate-without-connecting-to.html
Edited by: swapnil kambli on May 21, 2013 1:36 AM
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