How to backup OpenFire server

Hello. I want to backup my OpenFire server. OS is Windows Server 2008 Standard, OpenFire Version 3.7.1, using embedded database. What must I backup for fast migrating to other server, if hardware faulted and how can I restore the OpenFire configuration and database on a new machine? I saw that I must copied openfire.xml and embedded-db/ folder - that’s all, or not?

Great thanks for your answers.