When is a Snapshot backup considered a viable option?

A Snapshot backup is considered a viable option specifically when Tableau Server is configured with an External File Store. The reason for this is that the External File Store allows for the separation of the Tableau Server repository and the files that Tableau Server uses, such as workbooks, data sources, and extracts.

By utilizing an External File Store, administrators can effectively back up the data and files managed by Tableau Server without risking loss during the snapshot process. It ensures that the backup captures the full state of the server's data assets at a single point in time without interference from ongoing transactions or operations.

In scenarios where the server is operating in maintenance mode or a new workbook is created, a snapshot backup may not be as effective or necessary, as there might not be significant changes to backup or it is not the correct time for capturing the server's state. Similarly, scheduling snapshots at the end of every month does not guarantee capturing critical and up-to-date information, especially if changes occur frequently. Therefore, the best time for utilizing Snapshot backups is when the server has been set up with an External File Store to ensure comprehensive and reliable backups.