Figure 11-41 Select source and target volumes for the FlashCopy mapping Figure 11-40 Creating a FlashCopy mapping 3. Select a volume in the source volume column by using the drop-down menu. Then, select  a volume in the target volume column by using the drop-down menu. Click  Add , as shown  in Figure 11-41. Repeat this step to create other mappings. To remove a mapping that was created, click  . Click  Next. Important:  The source and target volumes must be of equal size. Therefore, only the  targets with the appropriate size are shown for a source volume. Volumes that are target volumes in another FlashCopy mapping cannot be target of a  new FlashCopy mapping. Therefore, they do not appear in the list. Chapter 11. Advanced Copy Services  511