Backup Domain Controller in SAP TMS Landscape

How to assign a Backup Domain Controller in TMS?

1. Logon to your Domain Controller SAP System in client 000
2. Execute Transaction Code: STMS
3. Click on the icon System Overview, alternatively click on Overview from the top menu and then click on Systems
4. Select your Domain Conroller system, double click
5. You will see three tabs: Management, Communication, and Transport Tool
6. Click on Communication
7. Click on Edit
8. You will see Backup under Transport Domain
9. Select your Backup Domain Controller system in this area
10. Save the configuration
11. Verify/Chanage the settings in remaining systems accordingly and Distribute the changes in All systems in your TMS landscape
12. Should you wish to test the functionality, bring your Domain Controller down and your backup domain controller should be promoted to the Domain Controller
13. Once your original Domain Controller system comes back online, your promoted Backup Domain Controller system should then assume the original role of Backup Domain Controller.

Good luck!