When using Prizm, how are the ESCON attached tape devices and the FICON CHPIDs defined via HCD?
Pretty much the same way they are configured currently with native ESCON; however, you will use different CUADD values related to the Prizm port for the various devices that use the same LINK to communicate to different physical devices. For device types that do not have an option for FICON attachment, the CNTLUNIT TYPE parameter is set to NOCHECK.