Production Strategy
We are currently in planning stage of the Siebel upgrade. While discussion on Production is going on, we would want to know what is the best approach for production release. We have 3 environment in Production like Production, Achieve and DR.
Production and Achieve has to go in hand as due to certain files are pulled from Archive environment.
Also, DR is also which needs to be upgrade.
We are upgrading from IP15.5 to IP22.1
1. So since 3 environment are involved, what can be the best approach possible
2. Incase we go with DR first [ to make more confident on Production, what possible points to be noted or taken care of.]