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IBM z Systems Connectivity Handbook SG24-5444 and z Systems Functional Matrix REDP-5157 by Octavian Lascu, Ewerson Palacio, Frank Packheiser, Bill White

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CHPID assignment and the CHPID Mapping Tool
In previous generations of platforms, the channel path identifier (CHPID) assignments were fixed and could not be changed. IBM z System platforms allow you to assign the CHPID number for any feature on the platform that has a CHPID number that is associated with it. The latest level of the CHPID Mapping Tool is available for z Systems mapping. The CHPID assignment functions are described in this appendix.
The following topics are covered in this appendix:

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