Customer currently has 2 Unity servers (2.4.6) connecting to a single Exchange 5.5 store. We need to upgrade Unity in stages if possible.
We will be installing Unity 3.1 on new MCS 7847 servers and connecting to the same Ex 55 store.
I have read and reread the upgrade procedures using the Export and Import utilities, but do not feel comfortable with the Unity Uninstall. Since I have 2 unity servers connecting to the same Ex 55 store, will the uninstall remove ALL Unity "stamps" or just on the users for that Unity server?
Would using raw mode access to the Ex 55 be a better solution? We have around 70 to 100 users on each server.
The customer would like to be able to fall back to their existing Unity setup if we encountered any problems.
Just need some guidance.