Hi Gerson,
One thing to note is that the move to 8.6 does include some new
processes that are reflected in the "Refresh Upgrade" name that
has been given to this path
Check out this great doc from Saurabh for the refresh upgrade notes for the step to 8.6.
This Refresh Upgrade will also apply to your CUCM 8.6 final step when you move there;
https://supportforums.cisco.com/community/netpro/collaboration-voice-video/unified-comm-application/blog/2011/08/11/checklist-before-upgrading-to-unity-connection-86
Here is a clip from the CUCM release notes for 8.6 that describe part of the process
just as an FYI. I do fully agree with Chris here (+5) that the move to 8.6 is the preferred
build for CUCM/CUC. This upgrade will be longer than a move to 8.5.
When you install 8.6 upgrade software, there will be a temporary server outage
while the CUCM software is installed.Once you kick off the upgrade using either
the command line or graphical user interface the data will be exported,
and the system will be automatically rebooted at which point the server
outage will begin. The duration of this outagewill depend on your
configuration and amount of data. During the upgrade, progress
can be monitored via the consoleuntil such time that command line
interface and graphical user interface access has been restored.
Once restored,you can use the command line interface or graphical
user interface to continue to monitor upgrade progress.
Cheers!
Rob
"Show a little faith, there's magic in the night" - Springsteen
