Do you think that i can use

Alain Comtois · ‎09-30-2015

Hi,

I will migrate cucm 8.6.2 to 10.5.2 soon.

I would like to know if i can load the 10.5.2 version tree days before starting the migration process and activating the new version without causing problem to the system.

I will have a small window time to migrate the system.

Tanks for your help.

Jaime Valencia · ‎09-30-2015

That's not an option for that path as it's a refresh upgrade

Step 4	Upgrade the Unified Communications Manager publisher node. The Unified Communications Manager publisher node is the first node in the cluster.
Step 5	Switch the software to the new software release. To do this, select Switch to new version after upgrade. The publisher node must be running the new software before you upgrade each subscriber node.

http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/upgrade/10_0_1/CUCM_BK_U4214F9D_00_upgrade-guide-cucm-100/CUCM_BK_U4214F9D_00_upgrade-guide-cucm-100_chapter_0111.html#CUCM_TK_T8C0C08B_00

HTH

java

if this helps, please rate

Alain Comtois · ‎10-01-2015

Hi Jaime,

When i create a task in PCD and choosing all the cluster.

PCD create a task with four step.

step 1 upgrade publisher

step 2 upgrade suscriber

step 3 switch version publisher

step 4 switch versin subscriber

in the documentation

Step 4

Upgrade the Unified Communications Manager publisher node. The Unified Communications Manager publisher node is the first node in the cluster.

Step 5

Switch the software to the new software release. To do this, select Switch to new version after upgrade. The publisher node must be running the new software before you upgrade each subscriber node.

Is it a mistake in PCD. If i understand well step 4 and 5.

I must upgrade Publisher and activate (switching to the new version) before upgrading the subscriber)

P.S. see the attachement PCD task.

Jaime Valencia · ‎10-01-2015

The instructions to which you're referring apply to the manual upgrade, PCD has another flow of events.

HTH

java

if this helps, please rate

Alain Comtois · ‎10-01-2015

Do you think that i can use this PCD task without problem ?

Or is it better to do manual upgrade ?

Jaime Valencia · ‎10-01-2015

Either one will work, my personal preference is to do all the upgrades manually, and just use PCD for migrations.

TYPO: last word should have been migrations.

HTH

java

if this helps, please rate

Aman Soi · ‎10-01-2015

[+5] to Jaime for sharing his views.

You can also refer the below link if u are looking for migration through PCD

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

regds,

aman

Migration cucm 8.6.2 to 10.5.2