https://community.f5.com/discussions/technicalforum/k15496-migrating-new-big-ip-platforms-to-an-existing-device-group/188694
K15496: Migrating new BIG-IP platforms to an existing device group | DevCentral
I have gone through this article and comfortable with the approach as I need to migrate from separate existing 6900 boxes to vCMP's running on Viprion B2150....
big ip