During an IODF load or resync, HCM automatically places new control units inside controllers, creates channel and device interfaces, and connects them to the proper CHPIDs and strings. After the load or resync, you may need to correct the order of these components, or their assignment to controller segments.
Click on the Arrange… button in the Edit Controller dialog to open the Arrange Controller dialog.
The list box shows all the physical components in the selected controller arranged hierarchically with sub-components listed below and indented from their containing components. See Figure 1 for an example.
Note that many types of controllers are partitioned into two separate sections; HCM uses the term segment to describe this architecture. For example, DASD controllers typically contain two segments.