Configuration limits

A FICON® channel supports up to 256 two-sided CTC control units and 16384 two-sided CTC devices. A maximum of 256 FICON CTC devices can be configured to a CTC control unit.

It is recommended that you use your FC channels for non-CTC devices in addition to CTC devices to take advantage of the throughput capacity of the channels as well as their full-duplex capability.