Thanks for your post.This makes me uncomfortable upgrading the servers as everyone has mentioned that failover upgrade is not smooth.So according to your recommendation it is better to uninstall the failover wizard on both the servers and then upgrade the servers and then rerun the failover setup .Is this right?
The upgrade is smooth. The problem I have ran into is the Failover wizard. Everything seems to upgrade fine, but failover always seems to have some issue.
it's fairly easy to uninstall failover before you begin. Simply uninstall on the both servers, then reinstall after the upgrade.
If you were thinking that you could keep voicemail services running during the upgrade and use the failover server, this is not possible. You will need schedule an outage window to upgrade each server.
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.