ISFC logical link configurations with "straight" FCTC connections

The diagram in this sections shows various ISFC logical link configurations with "straight" FCTC connections.

Figure 1 shows various ISFC logical link configurations with "straight" FCTC connections. The same scheme as in Figure 1 is applied, but for brevity, the FCTC devices and the encompassing CEC are omitted.

ISFC logical link configurations with "straight" FCTC connections for any of the FCTC connections composing the ISFC logical link, the FCTC devices at both ends of the FCTC connection are configured in the IOCDS on the same FICON channel.

It is important to realize that this is only possible when both LPARs reside on the same CEC and thus can share the FICON channel. In other words, "straight" FCTC connections always share FICON channels.