FICON Dynamic Routing is now suppored by IBM z Systems and Brocade. IBM and Brocade recently published a new joint white paper titled FICON Dynamic Routing (FIDR): Technology and Performance Implications.
As z Systems environments have grown, and configurations have become more complex, FICON fabric issues can result in unacceptable I/O service times. Various RMF/SMF records may show several abnormalities, but it typically has been very problematic to identify a single root cause for the issue(s), especially if the issue is in the FICON SAN fabric. FICON CUP Diagnostics helps solve this challenge.