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Install, Upgrade, and Maintenance Guide for Cisco Unity Connection Release 10.x
Chapter3 Upgrading CiscoUnity Connection
Status of Unity Connection Cluster During L2 Upgrade
Note After the upgrade, you may need to reinstall the locale depending on the source and the target version.
If the target version is compatible with the existing locales, then you need not install any new locales.
However, if the target version requires to install new locales, then first verify the existing locales using
the CLI show cuc locale, remove the existing set of locales after the completion of upgrade process, and
install the new set available locales. If there is no set of available locales with the target version, then
simply install the new set of locales.
Status of Unity Connection Cluster During L2 Upgrade
When Unity Connection is upgraded, then during switch version the subscriber server continues to
provide services to users and callers. However, the performance of the cluster is affected in the following
ways:
•If the phone system is routing calls to the subscriber server, outside callers and Unity Connection
users can leave voice messages but the messages are not immediately delivered to user mailboxes.
During switch version on the subscriber server in a cluster, messages that were left on the subscriber
server are copied to the publisher server and delivered to user mailboxes.
•Unity Connection users can use the telephone user interface (TUI) to play messages recorded before
the upgrade starts but cannot play the messages recorded during the upgrade.
•Unity Connection may not retain the status of messages. For example, if a user plays a message
during the upgrade, the message may be marked as new again after the upgrade. Likewise, if a user
deletes a message during the upgrade, the message may reappear after the upgrade.
���During an upgrade, users can access Unity Connection using clients, such as ViewMail for Outlook
and Web Inbox other than the telephone user interface (TUI). During the switch version, publisher
will display “message could not be loaded” for web inbox. The subscriber is completely disabled
during the switch version.
•Administrator users can make configuration changes using any of the administration applications,
such as Cisco Unity Connection Administration and Cisco Unified Operating System
Administration since the administration applications are disabled for both publisher and subscriber
during an upgrade. The configuration changes cannot be made during the switch version.
•Intrasite, intersite or HTTPS networking with other servers is disabled for the duration of the switch
version. Directory changes made on the other servers in the network are not replicated to the server
or cluster until the switch version is complete.
Note You can also upgrade Unity Connection 10.x and later using Cisco Prime Collaboration
Deployment. For more information on Cisco PCD, see
http://www.cisco.com/c/en/us/products/cloud-systems-management/prime-collaboration/index.
html.
Status of Unity Connection Cluster During RU
During the refresh upgrade, the publisher server is completely disabled for the entire duration of upgrade
but the subscriber server continues to provide services to users and callers.