Hi,
Thank you for posting in Symantec community.
I would be glad to answer your query.
There are multiple scenarios as listed below which we should consider while moving SEPM from one server to another server.
1) If the SEPM server keeps the same IP and host name, you can refer to "Best Practices for Disaster Recovery with the Symantec Endpoint Protection Manager"
2) SEPM server has a different IP and same hostname OR SEPM server has a same IP and different hosname.
3) SEPM server has a differenet IP and different hostaname.
Refer this article: https://www-secure.symantec.com/connect/articles/hot-move-sepm-one-server-another-server
KB article:
How to move Symantec Endpoint Protection Manager 12.1 from one machine to another
http://www.symantec.com/docs/TECH171767