What is the best way to migrate an Enterprise Manager to another server

Document ID : KB000094136
Last Modified Date : 10/05/2018
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Question:
  I need to migrate an Enterprise Manager from Server A to Server B.  What is the best way to do this?
Environment:
All current supported APM versions
Answer:
  The best way to migrate an Enterprise Manager (this could be a Standalone, MOM or Collector) is to perform a new install on the second server and prior to starting that Enterprise Manager up, copy over the Smartstor and traces db.