Recently I did an CCM server upgrade, in our LAB and at a customer; from CCM version 3.3(5) SR1 using ciscocm.3-3-DevPack-65.6.exe. In the first case it took about 5 minutes, in the second 60 min. Most of the upgrade time took the "Database update 1" phase.
The main difference between the 2 servers is that the customer server has been upgraded from version 3.2. What can I do to run the upgrade faster next time?