Configuring event retention settings
You can specify the number of months an event is retained in the Unified Manager server before it is automatically deleted.
What you’ll need
You must have the Application Administrator role.
Retaining events for more than 6 months could affect the server performance and is not recommended.
In the left navigation pane, click General > Data Retention.
In the Data Retention page, select the slider in the Event Retention area and move it to the number of months that events should be retained, and click Save.