This graphic shows a hard-disk icon at top left labeled "Oracle Database Files". An arrow points from this icon to a rectangle at top right labeled "RMAN Backup Set". Inside this rectangle are two smaller rectangles, each labeled "RMAN Backup Piece". An ellipsis separates these two smaller rectangles.

Another large rectangle at bottom right is labeled "Oracle Secure Backup Volume Set". It contains two smaller rectangles, each labeled "Backup Image Instance". Arrows point from each "RMAN Backup Piece" in the upper rectangle to "Backup Image Instance" in the lower rectangle.