Differenece between Dbtier,appstier,dbTechstack,Dbconfig,database  

  (Different EBS Cloning techniques)

Options with adcfgclone.pl

Application Node: appsTier | appltop  | atTechStack

Database Node: dbTier   | database | dbconfig | dbTechStack | addracnode

 Configure Target System

On Database Tier

adcfgclone.pl dbTier

·         Create Context File

·         Register Oracle Home

·         Relink Oracle Home

·         Configure Oracle Home

·         Recreate Control File

·         Configure Database

·         Start SQL*Net Listener

What it does?

adcfgclone.pl dbTier à adclone.pl à ApplyDBTier.java à  1- ApplyDatabase.java

                                                                                   2- ApplyDBTechStack.java

     Application Tier

adcfgclone.pl appsTier

·         Create Context File

·         Register Oracle Homes

·         Relink Oracle Homes

·         Configure Oracle Homes

·         Create INST_TOP

·         Configure APPL_TOP

·         Start Apps Processes

What it does?

adcfgclone.pl dbTier à adclone.pl à ApplyAppsTier.java à  1- ApplyApplTop.java

                                                                                      2- ApplyAppsTechStack.java

4-   Other Configuration Commands

On Database Tier

adcfgclone.pl dbTechStack

·         Create Context File

·         Register Oracle Home

·         Relink Oracle Home

·         Configure Oracle Home

·         Start SQL*Net Listener

adcfgclone.pl dbconfig

·         Configure Database

adcfgclone.pl database

·         Recreate Control File

·         Configure Database

·         Start SQL*Net Listener

On Applications Tier

adcfgclone.pl atTechStack

·         Create Context File

·         Register Oracle Homes

·         Relink Oracle Homes

·         Configure Oracle Homes

·         Create INST_TOP

adcfgclone.pl appltop

·         Configure APPL_TOP

·         Create INST_TOP

·         Start SQL*Net Listener

adclonectx.pl

·         Clone Context File

·         Allows Automation

What it does?

adclonectx.pl à CloneContext.java

What happening when executing adpreclone.pl in DB and Apps Tier?

What happening when executing adpreclone.pl in DB and Apps Tier?

adpreclone.pl - This is the preparation phase, will collects information about the source system, creates a cloning stage area, and generates templates and drivers. All of these are to reconfigure the instance on a Target machine.
Preclone will do the following:

Convert Symbolic links
All symbolic links pointing to a static path will be converted into relative paths

Create templates
Any files under the $ORACLE_HOME that contain system specific information, will be replicated and converted into a template. These templates are placed into the $ORACLE_HOME/appsutil/template directory.

Create driver(s)
A driver file, relating to these new templates is created called instconf.drv. This contains a list of all the templates and their locations, and the destination configuration files that these templates will create.
This driver file is called instconf.drv and is placed into directory
$ORACLE_HOME/appsutil/driver

Create Stage area
A clone stage is created containing the required java code and scripts to reconfigure the instace on the Target machine

Rapid Clone stage area:
dbTier : $ORACLE_HOME/appsutil/clone
appsTier(s) - $COMMON_TOP/clone

The stage area(s) consist of the following directories:-
 jre used to run the java code on the Target machine.
 bin contains the RapidClone scripts that can be run on the Target machine:-

•    adclone.pl is the main cloning script
•    adcfgclone.pl is used to configure the Target system, this calls adclone.pl
•    adclonectx.pl is used to clone a Source XML file manually
•    adaddnode.pl is used to add a new node to the Patch History tables
•    adchkutl.sh checks for existence of require O/S utils, cc, make, ar and ld

 jlib contains all the Rapid Clone java code, jdbc libraries etc
 context contains templates used for a Target XML file
 data (Database Tier only) contains the driver file, and templates used to generate the control file SQL script
 adcrdb.zip contains the template and list of datafiles on the Source
 addbhomsrc.xml contains information on the datafile mount points of the Source
 appl (Applications Tier only) this is used when merging appltops, i.e Multi-node to Single node cloning

Adpreclone Process in Detail :

When running adpreclone.pl dbTier :

This will run in two steps Techstack and database. 

 

Techstack:

It will create following directories in the ORACLE_HOME/appsutil/clone

Jlib, db, data where "Jlib" relates to libraries "db" will contain the techstack information, "data" will contain the information related to datafiles and required for cloning.

Creates driver files at ORACLE_HOME/appsutil/driver/instconf.drv 

Converts inventory from binary to xml, the xml file is located at $ORACLE_HOME/appsutil/clone/context/db/Sid_context.xml 

 

Prepare database for cloning:

This includes creating datbase control file script and datafile location information file at

$ORACLE_HOME/appsutil/template

adcrdbclone.sql, dbfinfo.lst 

Generates database creation driver file at ORACLE_HOME/appsutil/clone/data/driver

data.drv 

Copy JDBC Libraries at ORACLE_HOME/appsutil/clone/jlib/classes12.jar and appsoui 

 

When Running adpreclone appsTier : 

This will create stage directory at $COMMON_TOP/clone. This also run in two steps. 

 

Techstack:

 

Creates template files for

Oracle_iAS_Home/appsutil/template

Oracle_806_Home/appsutil/template 

Creates Techstack driver files for

 

IAS_ORACLE_HOME/appsutil/driver/instconf.drv

806_ORACLE_HOME/appsutil/driver/instconf.drv 

 

APPL_TOP preparation:

-   It will create application top driver   file$COMMON_TOP/clone/appl/driver/appl.drv

-   Copy JDBC libraries$COMMON_TOP/clone/jlib/classes111.zip 

 

Now Shutdown all the services of Application and database for Copy the file System to target location 

Configuring the target system

Once it is done .