Before you upgrade, back up your tables and save any Trellix IPS custom attacks that you have created. If you have a very large number of alerts and packet logs to upgrade, first consider archiving and deleting any alert and packet log data that you do not need before creating your database backup files.
Note
Save your entire backup in a different location than the current Central Manager or Manager to prevent data loss.
After you back up the Trellix IPS data, you can consider purging the Manager tables. Details on how to purge the database tables are in the Trellix Intrusion Prevention System Product Guide.
Purging the database tables can significantly shorten the Manager upgrade window. If you need the older alerts and packet logs, you can restore the database backup on an offline Manager server for viewing and reporting on that data.