A duplicate archive file has the same file name and extension as the primary, but must be saved to a different directory and volume. Use the Alternate File Directory parameter to provide a path for the duplicate.

Complete path to a directory for the duplicate file. Click the arrow to select from the list, or click the browse button to select from your system directories. If you do not provide a path, the duplicate is written to the default archive directory specified in personal options.
Select this check box to indicate that the duplicate file must be retained on a WORM device. If you select this option and the Alternate File Directory path does not point to the selected WORM device, the process fails.
The minimum period for retaining files on a WORM device. The minimum retention period is measured from the time the archive process copies the file to the device. After the minimum retention period expires, the file can be deleted. This setting is available only if the Allow User to alter Minimum Retention product option is selected. Otherwise, the default retention period set in product options is used.