Multiple Target FlashCopy In Multiple Target FlashCopy, a source volume can be used in multiple FlashCopy mappings,  while the target is a different volume, as shown in Figure 6-4. Up to 256 different mappings are possible for each source volume. These mappings are  independently controllable from each other. Multiple Target FlashCopy mappings can be  members of the same or different Consistency Groups. In cases where all the mappings are  in the same Consistency Group, the result of starting the Consistency Group will be to  FlashCopy to multiple identical target volumes. With Cascaded FlashCopy, you can have a source volume for one FlashCopy mapping and  as the target for another FlashCopy mapping; this is referred to as a  CascadedFlashCopy .  This function is illustrated in Figure 6-5. A total of 255 mappings are possible for each cascade.  Volume S1 FC_Source_1 Volume T1 FC_Target_1 Volume T2 FC_Target_2 Volume T3 FC_Target_3 Volume T4 FC_Target_3 Mapping 1 Order of FlashCopy Start (time) Mapping 2 Mapping 3 Mapping 4 Figure 6-4 Multiple Target FlashCopy Figure 6-5 Cascaded FlashCopy Volume 1 FC_Source_M1 Volume 2 FC_Target_M1 FC_Source_M2 Volume 3 FC_Target_M2 FC_Source_M3 Volume 4 FC_Target_M3 FC_Source_M4 Volume 5 FC_Target_M4 Mapping 1 Mapping 2 Mapping 3 Mapping 4 Order of FlashCopy Start (time) Cascaded FlashCopy Chapter 6. Copy services  149