You can use a backup copy to restore the database or logs. You specify the copy by using the precedence number that is associated with the copy.
The copy precedence that you use for the restore depends on whether you want to restore the data, or the data and the log files.
You must select the appropriate copy in order to have the job succeed. For example, if you want to restore the log files, and you select a data-only copy, the job fails.
If you want to restore the data and the log files, then select a data copy. The system restores the data from the copy, and pulls the files from a different copy.
If you want to perform a point-in-time restore, then select a data-only copy.
If you want to restore logs, then select a data and log files copy, or a log files copy.
You can select a copy precedence on the Advanced Restore Options dialog box, Copy Precedence tab, Restore from copy precedence box. For more information, see Advanced Restore Options (Copy Precedence).