We want to remove the existing unity server and replace it with a new server. New one will be same version 3.14 as previous. Do I have to uninstall unity on the old server like when doing this in Unity 2.46?We want previous one still functional before new one is take its place.
After you get the new server up and running, yes you will have to uninstall the software on the previous one. If you would like to keep the old one as a failover unity server, you could purchase and failover license for it to keep it running, but when you build the new server, you will have to move the dongle license key to the new server.
If you use DiRT to back up the data on the old server and then import that info into the new server, yes... it'll automatically bind to the same users in the directory on the fly regardless of if they're stamped as a subscriber already or not.
Keeping the old server around as a "hot standby" just doesn't fly though... you'll definitely need to take it off the network so the two Unity servers are not fighting over the same users in the directory. You don't necessarily have to uninstall it but I always reccomend you do so to keep things clean.
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.