I have 2 MM's with one cluster configured on it, I wanted to upgrade from 8.3.0.0 to 8.3.0.1, when I did this I lost one of the controllers totaly, and was not real sure how to get the standby MM to upgrade as well. I want to make sure I follow correct procedure. I was not able to find a document that shows the upgrade procedure so if someone can point me to that I would appreciate it.