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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 NOVEMBER 28, 2023

Applies to:

Enterprise Manager Base Platform - Version 13.4.0.0.0 and later
Information 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

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