I'm not sure if this is correct but i'm under the assumption that you can only have either UM users or VM users on one Unity server not both. If this is the case , i can have two seperate servers one for VM and one for UM...how would this affect the dialing domain?
You are correct that subscriber licensing for Unity is either VM or UM and not both. You can have to separate servers and the two servers can reside within the same dialing domain. The same dialing domain rules apply between the servers; no overlapping extension and no trunk access codes required to transfer calls.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.