Preupgrade tasks overview

Last Updated : Mar 26, 2026 |

This chapter provides information about the tasks that you must perform before starting the Avaya Oceana® migration process.

The following are the preupgrade tasks:

  • Shutting down all applications and taking snapshots.

  • Disabling mailboxes to prevent processing of new emails during the migration process.

  • Configuring Avaya Oceana® to reject contacts so that it stops accepting SMS, Social, Chat, and Generic conversations.

  • Configuring Avaya Oceana® to close chatrooms so that it closes any remaining chat sessions.

  • Taking Avaya Oceana® out of service for voice so that subsequent voice calls do not route to Avaya Oceana®.

  • Taking a backup of UCAStoreService to retain static information of Avaya Oceana®, such as information related to users, accounts, attributes, providers, and resources.

  • Taking a backup of Engagement Designer workflows.

  • Taking a backup of UCMService to retain data related to deferred emails.

  • Taking a backup of MMDB.

  • Upgrading Avaya Aura® System Manager for the new release of Avaya Oceana®.

  • Setting the cluster state of all clusters to Denying.