Migrating the database server alone to a new server

We are planning to migrate the database server (Db2) to a new server .
We are moving the backup files to the new server and restoring the backup there.
The bigfix IEM server will remain the same .

How to create/initialize the Beserver and beswebreports database on the new server so we can restore the backups on the new server.

If you are asking about BFI links below:
move the DB:
https://www.ibm.com/support/knowledgecenter/en/SSKLLW_9.5.0/com.ibm.bigfix.inventory.doc/Inventory/admin/t_moving_database.html
reinstall BFI using existing DB:
https://www.ibm.com/support/knowledgecenter/en/SSKLLW_9.5.0/com.ibm.bigfix.inventory.doc/Inventory/admin/t_reinstall_existing_db.html

If you are talking about BigFix platform server, you are likely to get better answers in other subforum than SUA/BFI.