1

Take snapshots of all applications.

Snapshot is the only supported fallback mechanism when an unrecoverable failure occurs during the migration process of Avaya Aura® System Manager and Avaya Breeze® platform nodes. You can take snapshots only during a maintenance window when Avaya Oceana® is shutdown. You must remove snapshots before placing the Avaya Oceana® in production.

For information about how to use snapshots in production, see the documentation for the respective application.

2

Disable all mailboxes.

See Disabling mailbox polling.

3

Configure Avaya Oceana® to reject contacts.

See Configuring Avaya Oceana to reject new digital contacts.

4

Configure Avaya Oceana® to close chatrooms.

See Configuring Avaya Oceana to close chatrooms.

5

Take Avaya Oceana® out of service for voice.

See Taking Avaya Oceana out of service for voice.

6

Take a backup of UCAStoreService.

See Taking a backup of UCAStoreService.

7

Take a backup of Engagement Designer workflows.

See Taking a backup of Engagement Designer workflows.

8

Take a backup of UCMService.

See Taking a backup of UCMService.

9

Set the cluster state of all clusters to Denying.

See Setting Cluster State to Denying.