8. Click  Manual Mapping . In the CHPID Groups tab, observe any intersect warnings that  were found during automatic mapping and decide whether they are acceptable (see  Figure 4-37). The example returned the “C” intersect. This warning indicates that multiple  definitions exist on the same I/O card. Figure 4-37 B Intersect examples You can now display the results of the channel mapping. You can also sort the report in  various ways. For example, you can see how the CHPID Mapping Tool ranked control units. Complete the following steps to check and set values for items, such as OSC CHPIDs and  FCTC CHPIDs, to ensure that the CHPID Mapping Tool allocates these CHPIDs with high  CHID availability: 1. Click  CU Priorities . By default, this pane is in the center at the top of the window.  2. In the CU Priorities pane, search in the CU Number column for the control units for which  you want to set a priority.  3. Enter a priority number for the CU in the Priority column for each row. The CHPID  Mapping Tool makes more related changes in the CHPID Groups panes. 72  IBM z14 Model ZR1 Configuration Setup