Hi, we are looking at a installing Appian along the lines of hardware engine faihttps://community.appian.com/discussions/f/administration/4037/hi-we-are-looking-at-a-installing-appian-along-the-lines-of-hardware-engine-faiHi, we are looking at a installing Appian along the lines of hardware engine failover. We are going to be engaging professional services to assist, but before we do so we are investigating jBoss licensing considerations. Are we right in thinking thaten-USTelligent Community 12RE: Hi, we are looking at a installing Appian along the lines of hardware engine faihttps://community.appian.com/thread/14196?ContentTypeID=1Mon, 12 Jan 2015 17:25:51 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:c5661e50-fbc6-49fe-9815-891a050df4b9TimHi David, in my experience JBoss EAP is only required on the application servers. Appian would also be installed on the app servers to provide various contents to JBoss. If you&#39;re running a VM environment you may find you have to license per core on the underlying hosts and not just the virtual servers which can inflate the costs depending on your hardware but this pricing model may have changed as per core becomes the norm for enterprise licensing<div style="clear:both;"></div>