As a Oracle Apps DBA, most of us are very familiar with the Oracle EBusiness Suite cloning/refresh process. Though there may be a few changes in perspective every one follow as per the client requirement.
Overall; in simple terms we can divide the Cloning/Refresh process of an EBusiness Suite instance into following few steps at a high level:
1) Prepare the Source environment
2) Backup and copy the File system to Target Servers
3) Extract the backups and restore on Target server
4) Configure the Target environment.
One of the Myth that many of the Oracle Apps DBAs are unaware is that, whenever we run ADPRECLONE utility on the source environment, we have to be very careful while entering the apps password.
Most may be thinking, what will happen at the max if I give wrong apps password, it might fail and I can re-run it again. But the fact is, it will make more damage than we expect/know.
It actually shuts down the database if we pass wrong apps password during adpreclone.pl dbTier on the db node. It will cause outage to your environment and thereafter escalations, etc. Just be careful!!!
Now lets look at it on apps node (Middle Tier). Someone might ask you what will happen if you pass wrong password to adpreclone.pl appsTier on the middle Tier.
On the Middle Tier, even if we give wrong apps password, it will still continue without any issues.
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