CHPID assignment and CHPID mapping tool
In previous generations of servers, the Channel Path Identifier (CHPID) assignments were fixed and could not be changed. System z servers allow you to assign the CHPID number for any feature on the server that would have a CHPID number associated with it. The latest level of the CHPID mapping tool is available to support System z mapping. The CHPID assignment functions are described in this appendix.
A CHPID statement is used in an Input/Output Control Dataset (IOCDS) to define each channel path ...

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