EM 13.4/13.5: How to Migrate OMS From One Host to Another Host With Different Host Name
(Doc ID 2913963.1)
Last updated on MAY 14, 2024
Applies to:
Enterprise Manager Base Platform - Version 13.4.0.0.0 and laterInformation in this document applies to any platform.
Purpose
This document contains the procedure to migrate the OMS from one host to another host (Same platform) with new Host Name.
Scope
This document can be followed for Migrating the OMS (Primary OMS in case of Multi OMS) from one host to another with a different host name.
Details
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In this Document
| Purpose |
| Scope |
| Details |
| Important Points to Consider |
| High Level Steps |
| Repository Database Migration |
| Downtime Calculation |
| Preparing for Migration |
| 1. Backup the Source OMS |
| 2. Identify the ports being used by Source OMS |
| 3. Copy EMKey to the repository DB |
| 4. Validating the Target OMS Host for Migration |
| 5. Prerequisites to create a clone jar file |
| 6. Create a clone jar file of the Source OMS |
| 7. Prepare the agent software |
| 8. Copy the files to Target host |
| 9. Install the agent software using softwareOnly method |
| 10. Extract the clone jar file on the target host |
| 11. Rename the emInstanceMapping.properties |
| Migration Activity |
| 12. Stop Source OMS |
| 13. Migrate the OMS |
| 14. Start OMS |
| 15. Configure Central Agent |
| Post Migration Steps |
| 16. Secure Source OMS Agent with new OMS |
| 17. Refresh Weblogic Domain to reconfigure the domain with new hostname |
| 18. Relocate source OMS Agent Targets to target OMS Agent |
| 19. Relocate the oracle_emrep target to the Management Agent of the new OMS host |
| 20. Resecure Management Agents |
| Activities to be performed after a OMS Clone |
| 21. Remove Stale OMS entries |
| 22. Steps for Multi OMS environment |
| References |