We have a global customer with clusters in North and South American, Europe and Asia connected via inter-cluster trunks, and all running CUCM/CUC 8.5. I'm looking for any documentation dealing with upgrading multi-cluster environments - compatibility concerns between them, any caveats/items to look out for, etc. The Install/Upgrade guides only deal with single clusters, at least that I've found.
There are no documentation for multicluster because there is no special requirements for them as Jamie has right mentioned. I have done multi cluster upgrade in the past and the key is to organize your resources to do the upgrade in different locations. Your considerations should be..
1. How do you want to do the upgrade: simultaneously/phased etc If its simultaneous then you will need to plan timing etc considering you will be working in different time zones
2. What are the depencies that needs to be upgraded first...UCCX?
3. You might save a lot of time installing the phone firmware on your destination version (8.6 or 9.0) on your existing cluster and then aloow your phones to upgrade their firmware through the night...This will save you a lot of time during your upgrade...
4. Finally have a solid test plan in place
Please rate all useful posts
"opportunity is a haughty goddess who waste no time with those who are unprepared"
we have recently announced a new Webex Events service with a best-in-class virtual event experience that is video-centric, intelligent, and simple to use.
Some highlights (features of new Webex Events that were not there with existing/c...
The purpose of this document is to present the different troubleshooting steps to take when some service from the Cisco IM & Presence Service Server have not started gracefully.
The States of a service
The IM&P ...
This event had place on Tuesday 20th, April 2021 at 10hrs PDT
What is the Real-Time Monitoring Tool (RTMT) and how do I use it? In addition to an overview of the components of the tool and the interface, attendees learned how to use ...
(view in My Videos)
Community Live- Tour of the Real-Time Monitoring Tool
(Live event - Tuesday, 20 April, 2021 at 10:00 am Pacific/ 1:00 pm Eastern / 7:00 pm Paris)
This event had place on Tuesday 20th, April 2021 at 10:00 hrs PDT
What is th...
Hello Admin Community!
I’m recruiting participants for an upcoming study looking at large meeting troubleshooting in Control Hub. If you’d like to participate, please fill out this quick, 2 min. survey. Thanks! https://www.surveymonkey.com/r/...