Application upgrade

Last Updated : Oct 19, 2020 |
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The following are the scenarios when an on-premise application needs to be upgraded:
  • During migration, if the version number of the on-premise perpetually-licensed application does not match the minimum version number that is supported by Avaya OneCloud™ Subscription.
    For more information, see Migrating applications from perpetual licenses to subscription license.
  • You already have an existing Avaya OneCloud™ Subscription system and you want to upgrade the on-premise applications subscribed under this Avaya OneCloud™ Subscription system.
    In this case, upgrade the on-premise application to the version number that you want. Because your Avaya OneCloud™ Subscription offer entitles you to the latest version of the subscribed applications, the upgrade version of the application is automatically licensed under the same subscription license. After you upgrade the on-premise application, update the application details in your Avaya OneCloud™ Subscription system.
    For more information, see Editing an application.
Note:
When upgrading the on-premise applications in your solution, ensure that you upgrade System Manager before you upgrade the other applications in your solution.
You can choose between any of the following two upgrade methods depending on whether the existing infrastructure capacities of the currently installed application version meet the requirements for the application version which you want to upgrade to:
  • In-place
  • Donor/Target

In-place

You can perform an in-place upgrade if the existing infrastructure resource capacities of the current running version of the application meet the requirements for the upgrade version. An in-place upgrade is service impacting for all users of the application.

Donor/Target

You can perform a Donor/Target upgrade when the existing infrastructure resource capacities of the current running version do not meet the requirements for the upgrade version.
In this model you must: deploy the new Target infrastructure, install the upgrade version, and modify the Donor system configuration as required. Only individual users are impacted when the users are migrated from the Donor system to the Target system.