CUCM upgrade 8.6 to 10.5

[krishnamohan.kp]

Hello,

I'm planning to upgrade CUCM version 8.6 to 10.5 as technology refresh in new UCS box. Could someone please clarify me below questions

1) In the new UCS box , should I deploy 10.5 OVA template first  and install CUCM 8.6, restore the backup from old CUCM?

Then I proceed to upgrade it to 10.5 version using CUCM upgrade media? 

OR  2)  Should I deploy the 8.6 OVA and then install 8.5 CUCM , restore the backup and upgrade it to 10.5 using CUCM upgrade media?? In this case will the CUCM upgrade media will take care of the hardware settings like Hard drives and RAM compatible to 10.5 version?

Regards
Krishna Mohan

[Manish Gogna]

Hi Krishna,

You should be using the Prime Collaboration Deployment ( PCD ) which is primarily used for such migrations and upgrades with minimum impact to existing clusters.

While your existing CUCM cluster is running on 8.6 you will be able to migrate it to a 10.x version using PCD on UCS platform.

Details about installing and using PCD for migration task are provided in the admin guide

http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/pcdadmin/10_5_1/CUCM_BK_U35347D2_00_pcd-administration-guide-1051/CUCM_BK_U35347D2_00_ucmap-administration-guide-1051_chapter_010.html#CUCM_TP_M7AF10F2_00

There are a couple of good links related to your query which you can also refer

https://supportforums.cisco.com/discussion/12319616/vm-upgrade-cucm-86-105-question

http://www.cisco.com/c/en/us/support/docs/unified-communications/unified-communications-manager-callmanager/118318-config-cucm-00.html

HTH

Manish

[Aman Soi]

Hi Mohan,

Please follow the link .

http://docwiki.cisco.com/wiki/Ongoing_Virtualization_Operations_and_Maintenance

Upgrading the UC applications

When running UC virtualized, it is necessary that the virtual machine configuration be set properly for the specific release of the UC application that you are running.

When doing a fresh install, it is required to deploy the OVA for the application that matches the release of the UC application itself. This ensures that the fresh install has the proper virtual machine configuration for the release being installed.

When a UC application is upgraded (eg. upgrading CUCM from 8.5.1 to 8.6.2), it is necessary to go to www.cisco.com and look at the Readme file for the OVA of the release you are upgrading to. For example: go to www.cisco.com and go to Support -> Downloads. From there Products -> Voice and Unified Communications -> IP Telephony -> Call Control -> Cisco Unified Communications Manager (CallManager) -> Cisco Unified Communications Manager Version 8.6 -> Unified Communications Manager Virtual Machine Templates-8.6(1)

When you're at the appropriate OVA, select "Download Now" and you will be taken to a page where you can click to view the Readme file. In the Readme file, you will see the virtual machine settings for the release. You must edit settings on the virtual machine you have upgraded to match the setting in the Readme file.

You will need to make the changes (edit settings) while the virtual machine is powered off. After you are booted up on the new software version, you must gracefully shut down the virtual machine, change the settings, and boot it back up.

There may be cases where there are no required changes. It will depend on the specific "from" and "to" versions of the upgrade

or  you can use PCD as suggested by Manish

regds,

aman