UVS manager license has a limitation on how many nodes of Mars 400 microserver are supported. For example, if you have a cluster with 3 units of Mars 400, you will get a license for 24 nodes from Ambedded. You are not able to add more nodes to the cluster by UVS manager.
When you want to add more Mars 400 nodes, you need a new license for expanding the cluster.
Down load the license request file from the UVS license manager and send it to servide@ambedded.com.tw. We will issue a new license for you to update the license.
Go to the "Setting" --> "About" page and follow the following picture.