Backing Up the Database
Upgrades: All upgrades.
Environments: All environments
Perform a full backup of the database. This backup protects your repositories and environment.
It is a recommended practice that you back up your database at key stages of the upgrade:
Before any upgrade activity is started
After upgrading the Siebel Database Schema or Custom Database Schema (upgrep + upgphys)
After the repository merge
Perform any necessary maintenance on your Siebel database, for example running REORG or RUNSTATS, before backing it up. This ensures that your database is ready for use if you have to perform a database recovery.