z/OS Version 2 Release 3 Hardware Configuration Definition User's Guide IBM SC34-2669-30 Note Before using this information and the product it supports, read the information in “Notices” on page 443. This edition applies to Version 2 Release 3 of z/OS (5650-ZOS) and to all subsequent releases and modifications until otherwise indicated in new editions. Last updated: 2019-02-16 © Copyright International Business Machines Corporation 1994, 2018. US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp. Contents List of Figures..................................................................................................... xiii List of Tables.....................................................................................................xxiii About this document.......................................................................................... xxv Who this document is for..........................................................................................................................xxv Related information.................................................................................................................................. xxv How to use this document.......................................................................................................................xxvi How this document is organized............................................................................................................. xxvi How to read syntax diagrams................................................................................................................. xxvii Symbols............................................................................................................................................. xxvii Syntax items..................................................................................................................................... xxviii Syntax examples.............................................................................................................................. xxviii How to send your comments to IBM................................................................... xxxi If you have a technical problem.............................................................................................................. xxxi Summary of changes........................................................................................ xxxii Summary of changes for z/OS Version 2 Release 3 (V2R3) as updated November 2018....................xxxii Summary of changes for z/OS Version 2 Release 3 (V2R3).................................................................. xxxii Summary of changes for z/OS Version 2 Release 2 (V2R2) as updated September 2016................. xxxiii Summary of changes for z/OS Version 2 Release 2 (V2R2) as updated March 2016..........................xxxiii Summary of changes for z/OS Version 2 Release 2 (V2R2)..................................................................xxxiv Summary of changes for z/OS Version 2 Release 1 (V2R1) as updated February, 2015.................... xxxiv Summary of changes for z/OS Version 2 Release 1 (V2R1) .................................................................xxxiv Enhancements of the I/O Autoconfiguration function.................................................................... xxxiv HMC-wide activate............................................................................................................................ xxxv Support of PCIe functions.................................................................................................................xxxv Validation enhancements.................................................................................................................xxxvi Enhanced CF Channel Path Connectivity List.................................................................................. xxxvi OS group change action available for device groups.......................................................................xxxvi HCD batch enhancements................................................................................................................xxxvi New profile options.......................................................................................................................... xxxvi CHID Summary Report....................................................................................................................xxxvii Verify a configuration by means of I/O Autoconfiguration (zDAC)................................................. xxxvii Hardware support............................................................................................................................xxxvii Chapter 1. Hardware configuration definition - What is it?...................................... 1 What HCD is and how it differs from MVSCP and IOCP.............................................................................. 1 Definition of configuration data..............................................................................................................1 Validation of configuration data............................................................................................................. 3 Reconfiguration of configuration data....................................................................................................3 What HCD offers you....................................................................................................................................4 How HCD works............................................................................................................................................5 Objects managed in the IODF................................................................................................................ 5 IODF used at IPL.....................................................................................................................................6 Relationship of data sets used by HCD..................................................................................................6 The environment in which HCD operates....................................................................................................7 HCD and I/O Operations.........................................................................................................................8 HCD and the coupling facility................................................................................................................. 8 Support of processor clusters................................................................................................................ 9 Support of the sysplex environment....................................................................................................10 iii Chapter 2. Migration............................................................................................ 11 Migration overview.....................................................................................................................................11 Migration roadmap.....................................................................................................................................11 Security migration................................................................................................................................ 11 Migration tasks..................................................................................................................................... 12 Chapter 3. How to set up, customize and start HCD...............................................13 Setting up HCD...........................................................................................................................................13 How to invoke HCD in dialog mode......................................................................................................14 Tailoring the CLIST CBDCHCD................................................................................................................... 15 Starting and ending HCD............................................................................................................................16 Defining an HCD profile..............................................................................................................................16 Working with the HCD Profile Options dialog...................................................................................... 17 Keywords.............................................................................................................................................. 19 Customizing HCD EXEC procedures.......................................................................................................... 26 Chapter 4. How to work with I/O definition files (IODF).........................................27 IODF naming convention........................................................................................................................... 27 Work IODF............................................................................................................................................ 27 Production IODF...................................................................................................................................28 Associated data sets...........................................................................................................................