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?
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
- ciscocm.refresh_upgrade_v1.1.docx (16.2 K) Preview
- CUCM Upgrade to 8.6.1 ver1.2.pdf (869.3 K) Preview
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