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Upgrade CUCM to 8.6.2

Answered Question
Oct 3rd, 2013
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Hi,


a short question to upgrade.


We have an CUCM 8.5 Cluster with Publisher and Subscriber and want to upgrade to 8.6.2


Can I install the new software at both servers and then reboot the publisher first and after that the subscriber-  or must I do the install and reboot at

the publisher first  and after that the install and reboot at the subscriber?

Correct Answer by Rob Huffman about 3 years 10 months ago

Hi SA,


Just to add a note to the good tips from Manish and Dennis (+5 guys!)


The move to CUCM 8.6 is known as a "Refresh" upgrade and requires

more down time and some extra steps. You must install the refresh.cop

as the first step and additional reboots will happen here. It's not quite

as straight forward as a standard L2 upgrade.


Read these great attachments from Ryan @ Cisco for a little

added Refresh info



Cheers!

Rob



Attachments:




"Your life is worth much more than gold." 

- Bob Marley

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Manish Gogna Thu, 10/03/2013 - 23:37
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Install the upgrade file on both servers first.


Then do a switch version on Publisher.


Once the switch version finishes on Pub, do it on Subscriber.


HTH


Manish

Dennis Mink Thu, 10/03/2013 - 23:44
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When you install the software, you can install on the inactive partition and choose NOT to do the reboot when the installation is finished. during maintanance window, do what Manish says,  but remember, any possible language pack, or other option (.cop file)  that you have on your current version of cucm, you will need to install that on your 8.6.2 version as well.


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Correct Answer
Rob Huffman Fri, 10/04/2013 - 05:24
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Hi SA,


Just to add a note to the good tips from Manish and Dennis (+5 guys!)


The move to CUCM 8.6 is known as a "Refresh" upgrade and requires

more down time and some extra steps. You must install the refresh.cop

as the first step and additional reboots will happen here. It's not quite

as straight forward as a standard L2 upgrade.


Read these great attachments from Ryan @ Cisco for a little

added Refresh info



Cheers!

Rob



Attachments:




"Your life is worth much more than gold." 

- Bob Marley

m.batts Fri, 10/04/2013 - 05:37
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Just thought i would add my couple pence, when upgrading the pub allow for a considerable more time for upgrading than before, probably double the amount of time due to the "refresh" upgrade as helpfully noted by Rob..When i did this for the first time i thought it had crashed and nearly aborted :-)

Rob Huffman Fri, 10/04/2013 - 05:50
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  • Hall of Fame,

    Founding Member

  • Cisco Designated VIP,

    2017 IP Telephony, Unified Communications

Hey Mark,


Great feedback here! +5 for this my friend


Cheers!

Rob




"Your life is worth much more than gold." 

- Bob Marley

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