IBM System z Connectivity Handbook

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Channel-to-channel

This chapter describes channel-to-channel (CTC) connections for the zEC12 using FICON channels, and for zEnterprise CPCs and System z10 using ESCON and FICON channels to interconnect servers and logical partitions.

6.1 Description

The channel-to-channel function simulates an input/output (I/O) device that can be used by one system control program to communicate with another system control program. It provides the data path and synchronization for data transfer between two channels. A loosely coupled multiprocessing system is ...

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