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Difference between dbtechstack,dbtier and dbconfig

When running adcfgclone on database node we had three modes in which it can be executed.
perl dbTier
 It will configure the ORACLE_HOME on the target database tier node and  recreate the controlfiles.
 This is specially used in case of standby database and/or hot backups. It will take care of all the steps. 

perl dbTechStack
It will configure the ORACLE_HOME on the target database tier node only. Relink the oracle home.
The below steps has to be performed manually
1. Create the Target Database control files.
2. Start the Target System Database in open mode
3. Run the library update script against the Database

cd $RDBMS_ORACLE_HOME/appsutil/install/[CONTEXT NAME]
sqlplus "/ as sysdba" @adupdlib.sql [libext]

 Where [libext] should be set to 'sl' for HP-UX, 'so' for any other UNIX platform,
or 'dll' for Windows.

perl dbconfig
It is used to configure the database with  context file.Database should be in open mode.
cd $RDBMS_ORACLE_HOME/appsutil/clone/bin
perl dbconfig target_context_file

Where Target Context File is:


  1. when u run dbtier will it configure listner
    and dbtechstack will it create listner file

  2. tx. it is very helpful for the begineers

  3. Well written text. I like the way you say it.