Hi I am configuring Oracle Application Server 10gR2 backup script on Linux. bkp_restore.pl I have some doubts about the backup procedure. In the documentation to perform a full middle tier backup we have to carry out these steps: 1. Backup the middle tier Oracle Home using tar or cpio. 2. Backup the middle tier Configuration Files using this command: bkp_restore.sh -m backup_config I wonder why I have to backup the config files when I have just made the whole ORACLE_HOME backup? The documentation gives this reason, *The reason for doing a configuration file backup immediately after backing up the entire Oracle home is that it provides a snapshot of your initial configuration files, in case you start to reconfigure your system and then would like to restore the configuration files to their original state.* I dont really understand what is it talking about, not sure if its my English. It seems to me that it is saying that in the case of when I restore the full oracle home backup and I start modifying the config files if I want to rollback the modificacions instead of restoring the whole ORACLE_HOME I can restored the config files backup from step 2? Or it is saying something else which I dont get it? Also does anyone know the difference between *bkp_restore.sh -m backup_config* and *bkp_restore.sh -m backup_online* ** I cant figure out the difference :-( TIA LSC