Re: Unity Licensing 2000+ users and 72+ sessions
Yes, if you need more than 72 sessions you have to get more than one Unity server. You can pool the licenses into one bucket if you wish or you can leave the licenses on a "per server" basis instead, whatever works best for your installation.
Depending on what you need those sessions for (i.e. if you'll be handling a lot of auto attendant calls which you can have one server dedicated for and use the other for subscriber messaging) it may be better to have seperate licenses. If it's all for subscriber messaging on a large scale, pooling would probably be easier from an administration standpoint.
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.