Thursday, 20 December 2012

Application Cloning

Types of Cloning:
1.      Clone by using ADCLONE utility (adclone.pl)
2.      Clone by using Rapid Clone.
3.      Custom cloning methods.
4.      Automated Tools.

ADCLONE utility:- [upto 11.5.5]
Ø  This utility is used Autoconfig not Enabled applications.
Ø  adclone.pl is required to run Rapid Install and apply RDBMS and Technology Stack Patches to target system.
Rapid Clone:[ in11i migrate to Autoconfig ]
Ø  This utility is used Autoconfig Enabled applications.


adclone.pl
Rapid Clone
Single to Single
Yes
Yes

Multi to Multi
Yes
Yes

Single to Multi
No
Yes

Multi to Single
No
Yes


Note:  In database version 8i adclone.pl and Rapid clone both are used, but in 9i onwards only use Rapid clone.

Features of Rapid Clone:
1.      Cloning single-node to multi-node vice versa.
2.      Adding a new node to an existing system.
3.      Cloning “Shared APPL_TOP”.
4.      Use Rapid clone from OAM also.
5.      Cloning RAC System.

6.      Adding node to an existing RAC cluster.

Steps for cloning:

There are 3 stage to clone.
1. prepare for cloning source and target
2. copy from source to Target
3. configuration for Target.

DB Tier


APPS Tier