z/OSVersion 2 Release 3

MVS Initialization and Tuning Reference

IBM

SA23-1380-30

Note

Before using this information and the product it supports, read the information in “Notices” on page793.

This edition applies to Version 2 Release 3 of z/OS (5650-ZOS) and to all subsequent releases and modifications untilotherwise indicated in new editions.

Last updated: 2019-06-24© Copyright International Business Machines Corporation 1991, 2019.US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract withIBM Corp.

Contents

Figures............................................................................................................... xxi

Tables...............................................................................................................xxiii

About this information......................................................................................xxviiWho should use this information............................................................................................................xxviiMVS workload management...................................................................................................................xxviiz/OS information..................................................................................................................................... xxviiHow to read syntax conventions............................................................................................................ xxvii

How to send your comments to IBM................................................................... xxxiIf you have a technical problem.............................................................................................................. xxxi

Summary of changes....................................................................................... xxxiiiSummary of changes for z/OS Version 2 Release 3 (V2R3)..................................................................xxxiiiSummary of changes for z/OS Version 2 Release 2 (V2R2) as updated December 2016....................xxxvSummary of changes for z/OS Version 2 Release 2 (V2R2) as updated September 2016.................. xxxvSummary of changes for z/OS Version 2 Release 2 (V2R2) as updated March 2016.......................... xxxvSummary of changes for z/OS Version 2 Release 2 (V2R2) as updated December 2015...................xxxviSummary of changes for z/OS Version 2 Release 2 (V2R2)..................................................................xxxviSummary of changes for z/OS Version 2 Release 1 (V2R1) as updated February, 2015.................... xxxixSummary of changes for z/OS Version 2 Release 1 (V2R1) as updated September, 2014...................... xlSummary of changes for z/OS Version 2 Release 1 (V2R1) as updated March, 2014............................. xliSummary of changes for z/OS Version 2 Release 1 (V2R1) as updated December, 2013......................xliiz/OS Version 2 Release 1 summary of changes....................................................................................... xlii

Part 1. Overview....................................................................................................1

Chapter 1. System tailoring......................................................................................................................... 3MVS hardware configuration definition..................................................................................................3System tailoring at initialization time.....................................................................................................3

Types of IPL.......................................................................................................................................4Operator entry of parameters...........................................................................................................5Description and use of the parmlib concatenation.......................................................................... 6Specifying an alternate nucleus....................................................................................................... 8Specifying an alternate master (system) catalog.............................................................................8

Understanding the master scheduler job control language.................................................................. 9Where does the master JCL reside?................................................................................................. 9Changing the master scheduler JCL.................................................................................................9Setting up started tasks with the Master JCL................................................................................ 11Writing your own master scheduler JCL.........................................................................................12

Overview of parmlib members.............................................................................................................14Implicit system parameters.................................................................................................................24Managing system security — APF-authorized library list.................................................................... 25

Choosing an APF list format........................................................................................................... 25Specifying the APF list.................................................................................................................... 26

Assigning the RACF TRUSTED attribute...............................................................................................27Specifying installation exits................................................................................................................. 28Specifying LNKLST concatenations..................................................................................................... 28

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Chapter 2. Sharing parmlib definitions..................................................................................................... 29Objectives for sharing parmlib............................................................................................................. 29What are system symbols?.................................................................................................................. 29

Static system symbols.................................................................................................................... 31Dynamic system symbols............................................................................................................... 32Symbols reserved for system use.................................................................................................. 34

Setting up a shared parmlib................................................................................................................. 34Step 1. Plan to share parmlib members.........................................................................................35Step 2. Determine where to specify system parameters.............................................................. 37Step 3. Determine where to specify the system name..................................................................39Step 4. Create an IEASYMxx parmlib member.............................................................................. 40Step 5. Code support for system symbols in LOADxx....................................................................44

Using system symbols in parmlib........................................................................................................ 45Step 1. Know the rules for using system symbols in parmlib........................................................45Step 2. Determine where to use system symbols in parmlib........................................................ 48Step 3. Verify system symbols in parmlib...................................................................................... 49

Changing system symbols....................................................................................................................50Displaying static system symbols........................................................................................................ 53Diagnosing problems with static system symbols.............................................................................. 53Indirect volume serial support.............................................................................................................53Using indirect volume serial support................................................................................................... 54

Restrictions..................................................................................................................................... 55

Part 2. Members of SYS1.PARMLIB.......................................................................57

Chapter 3. ADYSETxx (dump suppression)............................................................................................... 59Parameter in IEASYSxx (or supplied by the operator)........................................................................ 59Syntax rules for ADYSETxx................................................................................................................... 59Syntax format of ADYSETxx..................................................................................................................60IBM-supplied defaults for ADYSETxx.................................................................................................. 60Statements and parameters for ADYSETxx......................................................................................... 60

Chapter 4. ALLOCxx (allocation system defaults).....................................................................................65Parameter in IEASYSxx (or supplied by the operator)........................................................................ 65Syntax rules for ALLOCxx..................................................................................................................... 65Syntax format of ALLOCxx....................................................................................................................66Syntax example of ALLOCxx.................................................................................................................67IBM-supplied default for ALLOCxx...................................................................................................... 68Statements and parameters for ALLOCxx........................................................................................... 68

Chapter 5. ANTMIN00 (ANTMAIN control parameters)........................................................................... 85

Chapter 6. ANTXIN00 (XRC services)....................................................................................................... 87

Chapter 7. APPCPMxx (define APPC/MVS configuration).........................................................................89Changing values....................................................................................................................................89Parameter in IEASYSxx (or supplied by the operator)........................................................................ 89Syntax rules for APPCPMxx..................................................................................................................89Syntax format of APPCPMxx................................................................................................................ 90IBM-supplied default for APPCPMxx...................................................................................................90Statements and parameters for APPCPMxx........................................................................................90Response to errors in APPCPMxx........................................................................................................ 94

Chapter 8. ASCHPMxx (APPC/MVS transaction scheduler)......................................................................95Changing values....................................................................................................................................95Default values.......................................................................................................................................95

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Support for system symbols................................................................................................................ 95Parameter in IEASYSxx (or supplied by the operator)........................................................................ 96Syntax rules for ASCHPMxx................................................................................................................. 96Syntax format of ASCHPMxx................................................................................................................ 96IBM-supplied default for ASCHPMxx...................................................................................................96Statements and parameters for ASCHPMxx........................................................................................96

Chapter 9. AUTORxx (auto-reply policy specifications)......................................................................... 101Parameter in IEASYSxx (or supplied by the operator)...................................................................... 101Syntax rules for AUTORxx.................................................................................................................. 101Syntax format of AUTORxx.................................................................................................................101Syntax example of AUTORxx............................................................................................................. 101IBM-supplied default for AUTORxx................................................................................................... 102Statements and parameters for AUTORxx........................................................................................ 102

Chapter 10. AXRxx (system REXX options)............................................................................................ 105Parameter in IEASYSxx (or supplied by the operator)...................................................................... 105Syntax rules for AXRxx.......................................................................................................................105Syntax format of AXRxx..................................................................................................................... 105IBM-supplied default for AXRxx........................................................................................................ 105Statements and parameters for AXRxx............................................................................................. 105

Chapter 11. BLSCECT (formatting exits for dump and trace analysis)...................................................109Parameter in IEASYSxx (or supplied by the operator)...................................................................... 109Syntax rules for BLSCECT.................................................................................................................. 109IBM-supplied default for BLSCECT....................................................................................................109Statements and parameters for BLSCECT.........................................................................................109

Chapter 12. BLSCUSER (installation customization for dump and trace analysis)............................... 111Parameter in IEASYSxx (or issued by the operator)..........................................................................111Syntax rules for BLSCUSER................................................................................................................111Syntax format of BLSCUSER.............................................................................................................. 112IBM-supplied default for BLSCUSER................................................................................................. 113Statements and parameters for BLSCUSER, BLSCECT, and embedded parmlib members............ 113

Chapter 13. BPXPRMxx (z/OS UNIX System Services parameters).......................................................123Syntax rules for BPXPRMxx............................................................................................................... 123Syntax format of BPXPRMxx.............................................................................................................. 125Syntax example of BPXPRMxx...........................................................................................................127IBM-supplied default for BPXPRMxx.................................................................................................128Statements and parameters for BPXPRMxx......................................................................................128

Chapter 14. CEAPRMxx (common event adapter parameters)..............................................................163Syntax rules for CEAPRMxx............................................................................................................... 163Syntax format of CEAPRMxx.............................................................................................................. 164IBM-supplied defaults for CEAPRMxx...............................................................................................164Statements and parameters for CEAPRMxx......................................................................................164Examples of CEAPRMxx parmlib member.........................................................................................168

Chapter 15. CEEPRMxx (runtime option parameters)............................................................................169Parameter in IEASYSxx (or supplied by the operator)...................................................................... 169Syntax rules for CEEPRMxx................................................................................................................169Syntax format of CEEPRMxx.............................................................................................................. 170IBM-supplied default for CEEPRMxx.................................................................................................170Statements and parameters for CEEPRMxx......................................................................................170Example of CEEPRMxx parmlib member...........................................................................................171

Chapter 16. CLOCKxx (time of day parameters).....................................................................................175

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Parameter in IEASYSxx (or supplied by the operator)...................................................................... 175Syntax rules for CLOCKxx...................................................................................................................175Syntax format of CLOCKxx................................................................................................................. 176IBM-supplied default for CLOCKxx....................................................................................................176Statements and parameters for CLOCKxx.........................................................................................176

Chapter 17. CNGRPxx (specify console groups).....................................................................................181Console groups in a sysplex...............................................................................................................181Selecting a CNGRPxx member...........................................................................................................181Syntax rules for CNGRPxx..................................................................................................................181Syntax format of CNGRPxx................................................................................................................ 182IBM-supplied default for CNGRPxx................................................................................................... 182Statement and parameters for CNGRPxx..........................................................................................182

Chapter 18. CNLcccxx (time and date format for translated messages)............................................... 183Restrictions for CNLcccxx.................................................................................................................. 183Parameter in IEASYSxx (or supplied by the operator)...................................................................... 183Selecting a CNLcccxx member.......................................................................................................... 183Syntax rules for CNLcccxx..................................................................................................................184Syntax format of CNLcccxx................................................................................................................ 184Syntax example of CNLcccxx............................................................................................................. 185Statements and parameters for CNLcccxx........................................................................................185

Chapter 19. COFDLFxx (hiperbatch parameters)................................................................................... 189Parameter in IEASYSxx (or issued by the operator)..........................................................................189Syntax rules for COFDLFxx.................................................................................................................189Syntax format of COFDLFxx............................................................................................................... 190Starting DLF........................................................................................................................................190Statements and parameters for COFDLFxx.......................................................................................190

Chapter 20. COFVLFxx (virtual lookaside facility parameters)...............................................................191Collecting VLF statistics..................................................................................................................... 192Parameter in IEASYSxx (or issued by the operator)..........................................................................192Syntax rules for COFVLFxx.................................................................................................................192Syntax format of COFVLFxx............................................................................................................... 193Starting VLF........................................................................................................................................ 193Statements and parameters for COFVLFxx....................................................................................... 193

Chapter 21. COMMNDxx (commands automatically issued at initialization)........................................ 195Parameter in IEASYSxx (or issued by the operator)..........................................................................195Support for system symbols.............................................................................................................. 196Syntax rules for COMMNDxx..............................................................................................................196IBM-supplied default for COMMNDxx............................................................................................... 196Statements and parameters for COMMNDxx.................................................................................... 197

Chapter 22. CONFIGxx (standard configuration list)..............................................................................199Comparing the current and standard configurations........................................................................ 199

Matching configurations............................................................................................................... 199Nonmatching configurations........................................................................................................ 199Error in CONFIGxx statement.......................................................................................................200

Reconfiguring system elements........................................................................................................ 200Parameter in IEASYSxx:..................................................................................................................... 200Syntax rules for CONFIGxx................................................................................................................ 200IBM-supplied default for CONFIGxx................................................................................................. 201Statements and parameters for CONFIGxx...................................................................................... 201

Chapter 23. CONSOLxx (console configuration definition).................................................................... 207Using CONSOLxx in a sysplex............................................................................................................ 207

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Related members of parmlib............................................................................................................. 208Related commands............................................................................................................................ 208CONSOLE statement.......................................................................................................................... 209INIT statement...................................................................................................................................209HARDCOPY statement....................................................................................................................... 210DEFAULT statement........................................................................................................................... 210Parameter in IEASYSxx (or supplied by the operator)...................................................................... 211Syntax rules for CONSOLxx................................................................................................................211IBM-supplied default for CONSOLxx................................................................................................. 212Statements and parameters for CONSOLxx...................................................................................... 212

Syntax and parameters for the CONSOLE statement..................................................................213Syntax and parameters for the DEFAULT statement................................................................... 224Syntax and parameters for the HARDCOPY statement............................................................... 226Syntax and parameters for an INIT statement............................................................................228

Devices used as MCS consoles.......................................................................................................... 232Maximum and default specifications for AREA and SEG.................................................................. 233

Chapter 24. COUPLExx (cross-system coupling facility (XCF) parameters).......................................... 235Parameter in IEASYSxx (or supplied by the operator)...................................................................... 235Syntax rules for COUPLExx................................................................................................................ 235Syntax format of COUPLExx...............................................................................................................236IBM-supplied default for COUPLExx................................................................................................. 236Statements and parameters for COUPLExx...................................................................................... 236

Chapter 25. CSVLLAxx (library lookaside (LLA) list)............................................................................... 249Starting LLA........................................................................................................................................ 249Parameter in IEASYSxx (or supplied by the operator)...................................................................... 249Syntax rules for CSVLLAxx................................................................................................................. 249Syntax format of CSVLLAxx................................................................................................................250IBM-supplied default for CSVLLAxx.................................................................................................. 250Statements and parameters for CSVLLAxx....................................................................................... 250

Chapter 26. CTncccxx (component trace parameters)...........................................................................255Tracing of MVS components.............................................................................................................. 255Tracing of installation-provided applications....................................................................................255Parameter in IEASYSxx (or supplied by the operator)...................................................................... 255Syntax rules for CTncccxx.................................................................................................................. 256Syntax examples................................................................................................................................ 256Syntax format of CTncccxx.................................................................................................................257IBM-supplied default for CTncccxx................................................................................................... 257Statements and parameters for CTncccxx........................................................................................ 257

Chapter 27. CUNUNIxx (Unicode Services environment)...................................................................... 261Selecting a CUNUNIxx member.........................................................................................................261Parameter in IEASYSxx...................................................................................................................... 261Syntax rules for CUNUNIxx................................................................................................................261Syntax format of CUNUNIxx.............................................................................................................. 262IBM-supplied default for CUNUNIxx................................................................................................. 262Statements and parameters for CUNUNIxx...................................................................................... 262Samples for parmlib member CUNUNIxx..........................................................................................271

Chapter 28. DEVSUPxx (device support options)................................................................................... 273Enhanced security for tape data sets................................................................................................ 274Parameter in IEASYSxx (or issued by the operator)..........................................................................275Syntax rules for DEVSUPxx................................................................................................................ 275Syntax format of DEVSUPxx...............................................................................................................276IBM-supplied defaults for DEVSUPxx................................................................................................276Statements and parameters for DEVSUPxx...................................................................................... 277

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Volume partitioning parameters.................................................................................................. 291

Chapter 29. DFHSSIxx (message-formatting initialization member).................................................... 293

Chapter 30. DIAGxx (control common storage tracking and GFS trace)............................................... 295Specifying the DIAGxx members.......................................................................................................295Parameter in IEASYSxx (or specified by the operator)..................................................................... 296Syntax rules for DIAGxx..................................................................................................................... 296Syntax format of DIAGxx....................................................................................................................296IBM-supplied default for DIAGxx...................................................................................................... 297Statements and parameters for DIAGxx........................................................................................... 297

Chapter 31. EPHWP00 (BookManager topic extraction)........................................................................309Parameter in IEASYSxx (or issued by the operator)..........................................................................309Syntax rules for EPHWP00.................................................................................................................310Syntax format of EPHWP00............................................................................................................... 310IBM-supplied default for EPHWP00..................................................................................................310

Chapter 32. EXITxx (allocation installation exit list).............................................................................. 311Parameter in IEASYSxx (or issued by the operator)..........................................................................311Syntax rules for EXITxx...................................................................................................................... 312Syntax format of EXITxx.....................................................................................................................312IBM-supplied default for EXITxx....................................................................................................... 312Statements and parameters for EXITxx............................................................................................ 312

Chapter 33. EXSPATxx (excessive spin condition actions).....................................................................313Parameter in IEASYSxx (or issued by the operator)..........................................................................313Syntax rules for EXSPATxx................................................................................................................. 313Syntax example of EXSPATxx.............................................................................................................314IBM-supplied default for EXSPATxx.................................................................................................. 314Statements and parameters for EXSPATxx....................................................................................... 314Example of EXSPATxx........................................................................................................................ 315

Chapter 34. FXEPRMxx (IBM Function Registry for z/OS)......................................................................317Parameter in IEASYSxx (or issued by the operator)..........................................................................317Syntax rules for FXEPRMxx................................................................................................................317Syntax format of FXEPRMxx.............................................................................................................. 317IBM-supplied default for FXEPRMxx................................................................................................. 317Statements and parameters for FXEPRMxx...................................................................................... 317

Chapter 35. GRSCNFxx (global resource serialization configuration)....................................................319Parameters in IEASYSxx.................................................................................................................... 320Syntax rules for GRSCNFxx................................................................................................................320IBM-supplied default for GRSCNFxx................................................................................................. 321Statements and parameters for GRSCNFxx...................................................................................... 321

Chapter 36. GRSMONxx (global resource serialization monitor)........................................................... 325Parameters in IEASYSxx.................................................................................................................... 325Syntax rules for GRSMONxx...............................................................................................................325Syntax format of GRSMONxx............................................................................................................. 327IBM-supplied default for GRSMONxx................................................................................................327Statements and parameters for GRSMONxx.....................................................................................327

Chapter 37. GRSRNLxx (global resource serialization resource name lists)......................................... 331Parameter in IEASYSxx (or supplied by the operator)...................................................................... 331Support for system symbols.............................................................................................................. 331Syntax rules for GRSRNLxx................................................................................................................332IBM-supplied default for GRSRNLxx................................................................................................. 333

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Statements and parameters for GRSRNLxx...................................................................................... 333

Chapter 38. GTFPARM (generalized trace facility parameters)..............................................................337Parameter in IEASYSxx (or issued by the operator)..........................................................................337Syntax rules for GTFPARM................................................................................................................. 337IBM-supplied default for GTFPARM.................................................................................................. 339Statements and parameters for GTFPARM....................................................................................... 339

Chapter 39. GTZPRMxx (Generic Tracker parameters).......................................................................... 341Parameters in IEASYSxx (or supplied by the operator).................................................................... 341Syntax rules for GTZPRMxx................................................................................................................341Syntax format of GTZPRMxx.............................................................................................................. 342IBM-supplied default for GTZPRMxx.................................................................................................342Statements and parameters for GTZPRMxx......................................................................................342

Chapter 40. HZSPRMxx (manage IBM Health Checker for z/OS checks).............................................. 353

Chapter 41. IDAVDTxx (VSAM dynamic trace parameters)....................................................................355Syntax rules for IDAVDTxx................................................................................................................. 355Syntax format for IDAVDTxx.............................................................................................................. 355IBM-supplied defaults for IDAVDTxx.................................................................................................355Statements and parameters for IDAVDTxx....................................................................................... 356Examples of IDAVDTxx parmlib member.......................................................................................... 356

Chapter 42. IEAABD00 (ABDUMP written to a SYSABEND data set).................................................... 357Parameter in IEASYSxx (or specified by the operator)..................................................................... 357Syntax rules for IEAABD00................................................................................................................357IBM-supplied default for IEAABD00................................................................................................. 358Statements and parameters for IEAABD00...................................................................................... 358

Chapter 43. IEAAPFxx (authorized program facility list)........................................................................361Parameter in IEASYSxx (or supplied by the operator)...................................................................... 362Syntax rules for IEAAPFxx................................................................................................................. 362IBM-supplied default for IEAAPFxx.................................................................................................. 363Statements and parameters for IEAAPFxx....................................................................................... 363

Chapter 44. IEAAPP00 (authorized I/O appendage routines)............................................................... 365Syntax rules for IEAAPP00................................................................................................................ 365IBM-supplied default for IEAAPP00................................................................................................. 365Statements and parameters for IEAAPP00...................................................................................... 365

Chapter 45. IEACMD00 (IBM-supplied commands).............................................................................. 367Parameter in IEASYSxx (or supplied by the operator)...................................................................... 368Syntax rules for IEACMD00............................................................................................................... 368IBM-supplied default for IEACMD00.................................................................................................368Statements and parameters for IEACMD00......................................................................................368

Chapter 46. IEADMCxx (DUMP command parmlib)................................................................................369Performance implications..................................................................................................................369Syntax rules for IEADMCxx................................................................................................................ 369Syntax format of IEADMCxx...............................................................................................................369IBM-supplied default for IEADMCxx................................................................................................. 369Statements and parameters for IEADMCxx...................................................................................... 370

Chapter 47. IEADMP00 (ABDUMP written to a SYSUDUMP data set)................................................... 373Parameter in IEASYSxx (or specified by the operator)..................................................................... 373Syntax rules for IEADMP00............................................................................................................... 373IBM-supplied default for IEADMP00.................................................................................................374

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Statements and parameters for IEADMP00......................................................................................374

Chapter 48. IEADMR00 (ABDUMP written to a SYSMDUMP data set)...................................................377Recommendation for IEADMR00 with z/OS UNIX............................................................................ 377Parameter in IEASYSxx (or specified by the operator)..................................................................... 377Syntax rules for IEADMR00............................................................................................................... 377IBM-supplied default for IEADMR00.................................................................................................378Statements and parameters for IEADMR00......................................................................................378

Chapter 49. IEAFIXxx (fixed LPA list)......................................................................................................379Parameter in IEASYSxx (or specified by the operator)..................................................................... 379Syntax rules for IEAFIXxx.................................................................................................................. 380Syntax format of IEAFIXxx.................................................................................................................380Syntax example of IEAFIXxx............................................................................................................. 380IBM-supplied default for IEAFIXxx................................................................................................... 381Statements and parameters for IEAFIXxx........................................................................................ 381

Chapter 50. IEALPAxx (modified LPA list)...............................................................................................383Parameter in IEASYSxx (or supplied by the operator)...................................................................... 383Syntax rules for IEALPAxx..................................................................................................................384Syntax format of IEALPAxx................................................................................................................ 384Syntax example of IEALPAxx............................................................................................................. 384IBM-supplied default for IEALPAxx...................................................................................................384Statements and parameters for IEALPAxx........................................................................................385

Chapter 51. IEAOPTxx (OPT parameters)...............................................................................................387Syntax rules for IEAOPTxx................................................................................................................. 388IBM-supplied default for IEAOPTxx.................................................................................................. 388Statements and parameters for IEAOPTxx....................................................................................... 388

Chapter 52. IEAPAKxx (LPA pack list).....................................................................................................403Parameter in IEASYSxx (or supplied by the operator)...................................................................... 403Syntax rules for IEAPAKxx................................................................................................................. 403IBM-supplied default for IEAPAKxx.................................................................................................. 404Statements and parameters for IEAPAKxx....................................................................................... 404

Chapter 53. IEASLPxx (SLIP commands)............................................................................................... 405Parameter in IEASYSxx (or supplied by the operator)...................................................................... 405Syntax rules for IEASLPxx..................................................................................................................405IBM-supplied default for IEASLPxx...................................................................................................406Using system commands................................................................................................................... 407

Chapter 54. IEASVCxx (installation-defined SVCs)................................................................................ 409Parameter in IEASYSxx (or entered by the operator)....................................................................... 409Syntax rules for IEASVCxx................................................................................................................. 409Syntax examples of IEASVCxx...........................................................................................................409IBM-supplied default for IEASVCxx.................................................................................................. 409Statements and parameters for IEASVCxx....................................................................................... 410

Chapter 55. IEASYMxx (symbol definitions and IEASYSxx members).................................................. 413Parameter in LOADxx:........................................................................................................................ 413Performance implications..................................................................................................................413Syntax rules for IEASYMxx.................................................................................................................413Syntax format of IEASYMxx............................................................................................................... 414IBM-supplied default for IEASYMxx..................................................................................................414Statements and parameters for IEASYMxx.......................................................................................414

Chapter 56. IEASYSxx (system parameter list)...................................................................................... 421

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Overview of IEASYSxx parameters....................................................................................................421Changes to initialization parameters.................................................................................................425Support for system symbols.............................................................................................................. 426Parameter specified by the operator.................................................................................................427Syntax rules for IEASYSxx................................................................................................................. 427IBM-supplied default for IEASYSxx...................................................................................................427Specifying the list option for IEASYSxx parameters......................................................................... 428Statements and parameters for IEASYSxx........................................................................................428

ALLOC............................................................................................................................................428APF................................................................................................................................................ 428AUTOR...........................................................................................................................................429AXR................................................................................................................................................429CATALOG....................................................................................................................................... 429CEA................................................................................................................................................430CEE................................................................................................................................................ 430CLOCK........................................................................................................................................... 430CLPA.............................................................................................................................................. 430CMB............................................................................................................................................... 431CMD...............................................................................................................................................432CON............................................................................................................................................... 432COUPLE......................................................................................................................................... 433CSA................................................................................................................................................433CSCBLOC.......................................................................................................................................434CVIO.............................................................................................................................................. 435DEVSUP......................................................................................................................................... 435DIAG..............................................................................................................................................435DRMODE........................................................................................................................................436DUMP............................................................................................................................................ 436EXIT...............................................................................................................................................437FIX.................................................................................................................................................437FXE................................................................................................................................................ 438GRS................................................................................................................................................438GRSCNF.........................................................................................................................................439GRSRNL.........................................................................................................................................439GTZ................................................................................................................................................ 440HVCOMMON..................................................................................................................................440HVSHARE...................................................................................................................................... 441HZS................................................................................................................................................441HZSPROC...................................................................................................................................... 441ICSF...............................................................................................................................................442ICSFPROC..................................................................................................................................... 442IEFOPZ.......................................................................................................................................... 442IKJTSO.......................................................................................................................................... 443IOS................................................................................................................................................ 443IQP................................................................................................................................................ 443IXGCNF......................................................................................................................................... 443IZU.................................................................................................................................................444LFAREA..........................................................................................................................................444LICENSE........................................................................................................................................ 448LNK................................................................................................................................................448LNKAUTH...................................................................................................................................... 448LOGCLS......................................................................................................................................... 449LOGLMT.........................................................................................................................................449LOGREC......................................................................................................................................... 450LPA................................................................................................................................................ 451MAXCAD........................................................................................................................................ 451MAXUSER......................................................................................................................................452MLPA............................................................................................................................................. 453

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MSTRJCL....................................................................................................................................... 453NONVIO........................................................................................................................................ 454NSYSLX..........................................................................................................................................455OMVS.............................................................................................................................................456OPI................................................................................................................................................ 456OPT................................................................................................................................................457System parameter OSPROTECT...................................................................................................457PAGE..............................................................................................................................................458PAGESCM...................................................................................................................................... 460PAGTOTL....................................................................................................................................... 461PAK................................................................................................................................................462PLEXCFG....................................................................................................................................... 462PRESCPU.......................................................................................................................................463PROD............................................................................................................................................. 464PROG.............................................................................................................................................464RDE................................................................................................................................................465REAL..............................................................................................................................................465RER................................................................................................................................................466RSU................................................................................................................................................466RSVNONR......................................................................................................................................468RSVSTRT....................................................................................................................................... 469RUCSA........................................................................................................................................... 469SCH................................................................................................................................................470SMF............................................................................................................................................... 471SMS............................................................................................................................................... 471SQA................................................................................................................................................471SSN................................................................................................................................................473SVC................................................................................................................................................ 473SYSNAME...................................................................................................................................... 474SYSP.............................................................................................................................................. 474UNI................................................................................................................................................ 475VAL................................................................................................................................................ 475VIODSN......................................................................................................................................... 476VRREGN........................................................................................................................................ 476WARNUND.................................................................................................................................... 477ZAAPZIIP...................................................................................................................................... 477

Chapter 57. IECIOSxx (I/O related parameters).................................................................................... 479Parameter in IEASYSxx (or specified by the operator)..................................................................... 479IBM-supplied default for IECIOSxx...................................................................................................480Syntax rules for IECIOSxx..................................................................................................................480Missing interrupt handler (MIH)........................................................................................................ 480

I/O timing...................................................................................................................................... 481Interaction of MIH and I/O timing processing.............................................................................482I/O timing trigger for HyperSwap................................................................................................. 482Statements and parameters for MIH........................................................................................... 483

Hot I/O (HOTIO)................................................................................................................................. 488Options for HOTIO recovery......................................................................................................... 490

TERMINAL.......................................................................................................................................... 490CTRACE...............................................................................................................................................491FICON................................................................................................................................................. 491STORAGE............................................................................................................................................ 492CAPTUCB............................................................................................................................................ 492MIDAW................................................................................................................................................492HYPERPAV.......................................................................................................................................... 493HYPERWRITE..................................................................................................................................... 493EKM.....................................................................................................................................................494RECOVERY ......................................................................................................................................... 496

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DCCF usage...................................................................................................................................496Limited recovery time...................................................................................................................497Path recovery................................................................................................................................ 497Statements and parameters for RECOVERY ............................................................................... 498Syntax example............................................................................................................................ 499

ZHPF................................................................................................................................................... 499SPOF................................................................................................................................................... 500ZHYPERLINK...................................................................................................................................... 500Syntax examples for IECIOSxx.......................................................................................................... 500

Chapter 58. IEFOPZxx (data set optimization configuration).................................................................503Parameter in IEASYSxx (or supplied by the operator)...................................................................... 503Syntax rules for IEFOPZxx................................................................................................................. 503Syntax format of IEFOPZxx................................................................................................................504IBM-supplied default for IEFOPZxx...................................................................................................504Statements and parameters for IEFOPZxx........................................................................................504Usage notes for IEFOPZxx................................................................................................................. 510

Chapter 59. IEFSSNxx (subsystem definitions) - keyword parameter form..........................................511Restrictions for IEFSSNxx..................................................................................................................511Parameter in IEASYSxx (or supplied by the operator)...................................................................... 512Syntax rules for IEFSSNxx................................................................................................................. 513IBM-supplied default for IEFSSNxx...................................................................................................513Statements and parameters for IEFSSNxx........................................................................................513Examples of IEFSSNxx member........................................................................................................ 515

Chapter 60. IFAPRDxx (product enablement policy)............................................................................. 517Before creating the member..............................................................................................................517Usage considerations.........................................................................................................................518Parameter in IEASYSxx (or issued by the operator)..........................................................................518Syntax rules for IFAPRDxx................................................................................................................. 518Syntax format of IFAPRDxx................................................................................................................519IBM-supplied default for IFAPRDxx.................................................................................................. 519Statements and parameters for IFAPRDxx....................................................................................... 519Examples of IAFAPRDxx statements.................................................................................................523

Chapter 61. IFGPSEDI (enhanced data integrity)...................................................................................525Syntax rules for IFGPSEDI................................................................................................................. 525Syntax examples................................................................................................................................ 525Syntax format of IFGPSEDI................................................................................................................525IBM-supplied default for IFGPSEDI.................................................................................................. 526Statements and parameters for IFGPSEDI....................................................................................... 526

Chapter 62. IGDSMSxx (storage management subsystem definition).................................................. 527Parameter in IEASYSxx...................................................................................................................... 527Defining SMS through the IEFSSNxx member.................................................................................. 527

Example of an SMS record in IEFSSNxx.......................................................................................528Starting SMS - at IPL and afterward.................................................................................................. 529Specifying SMS parameters through SETSMS and SET SMS............................................................ 529Syntax rules for IGDSMSxx................................................................................................................ 529Syntax format of IGDSMSxx...............................................................................................................530IBM-supplied default for IGDSMSxx................................................................................................. 531Required keywords for IGDSMSxx.....................................................................................................531Optional keywords for IGDSMSxx......................................................................................................531Examples of the contents of IGDSMSxx............................................................................................555Examples of specifying DFSMStvs parameters.................................................................................556

Chapter 63. IGGCATxx (DFSMS catalog configuration).......................................................................... 559

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Parameter in IEASYSxx (or specified by the operator)..................................................................... 559Syntax rules for IGGCATxx.................................................................................................................559Syntax format of IGGCATxx............................................................................................................... 560Statements and parameters for IGGCATxx....................................................................................... 561

Chapter 64. IKJTSOxx (TSO/E commands and programs).....................................................................565Parameter in IEASYSxx (or specified by the operator)..................................................................... 565Selecting the IKJTSOxx member.......................................................................................................565Syntax rules for IKJTSOxx................................................................................................................. 566Syntax format of IKJTSOxx................................................................................................................567IBM-supplied default for IKJTSOxx...................................................................................................567Statements and parameters for IKJTSOxx........................................................................................568

Chapter 65. IOEPRMxx (z/OS Distributed File Service z/OS File System parameters)......................... 579Specifying the IOEPRMxx concatenation.......................................................................................... 579Syntax rules for IOEPRMxx................................................................................................................ 580

Chapter 66. IPCSPRnn (Interactive Problem Control System).............................................................. 581Parameter in IEASYSxx (or specified by the operator)..................................................................... 581Syntax rules for IPCSPRnn.................................................................................................................581IBM-supplied default for IPCSPRnn..................................................................................................581Statements and parameters for IPCSPRnn.......................................................................................581

Chapter 67. IQPPRMxx (PCIE related parameters)................................................................................585Parameter in IEASYSxx (or specified by the operator)..................................................................... 585Syntax rules for IQPPRMxx................................................................................................................585Statements and parameters for IQPPRMxx...................................................................................... 585

Chapter 68. IRRPRMxx (RACF parameters)............................................................................................587IBM-supplied default for IRRPRMxx................................................................................................. 587

Chapter 69. IVTPRM00 (Communication Storage Manager)..................................................................589Parameter in IEASYSxx (or supplied by the operator)...................................................................... 589Syntax format of IVTPRM00.............................................................................................................. 589Syntax rules for IVTPRM00................................................................................................................589IBM-supplied defaults for IVTPRM00............................................................................................... 589Statements and parameters for IVTPRM00...................................................................................... 590

Chapter 70. IXGCNFxx (system logger initialization parameters)......................................................... 593Specifying the IXGCNFxx members...................................................................................................593Related members in parmlib............................................................................................................. 594Parameter in IEASYSxx (or supplied by the operator)...................................................................... 594Syntax rules for IXGCNFxx.................................................................................................................594IBM-supplied defaults for IXGCNFxx................................................................................................ 594Syntax format of IXGCNFxx............................................................................................................... 595Statements and parameters for IXGCNFxx....................................................................................... 595Examples of IXGCNFxx member....................................................................................................... 602

Chapter 71. IZUPRMxx (configure IBM z/OS Management Facility)......................................................603

Chapter 72. LNKLSTxx (LNKLST concatenation).....................................................................................605Using PROGxx to define LNKLST concatenations............................................................................. 605Using LNKLSTxx..................................................................................................................................605Parameter in IEASYSxx (or supplied by the operator)...................................................................... 605Syntax rules for LNKLSTxx................................................................................................................. 606Syntax format of LNKLSTxx................................................................................................................606Syntax example of LNKLSTxx.............................................................................................................606IBM-supplied default for LNKLSTxx.................................................................................................. 606

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IBM-supplied sample for LNKLSTxx..................................................................................................607

Chapter 73. LOADxx (system configuration data sets)...........................................................................609Placement of LOADxx.........................................................................................................................609Copying LOADxx members.................................................................................................................610Filtering with LOADxx.........................................................................................................................610

Filtering example.......................................................................................................................... 611Parameter in IEASYSxx (or supplied by the operator)...................................................................... 613Support for system symbols.............................................................................................................. 613Syntax rules for LOADxx.....................................................................................................................613Syntax format of LOADxx................................................................................................................... 614IBM-supplied default for LOADxx......................................................................................................614Statements and parameters for LOADxx...........................................................................................614Example of parmlib concatenation....................................................................................................630

Chapter 74. LPALSTxx (LPA library list)...................................................................................................631Parameter in IEASYSxx (or supplied by the operator)...................................................................... 631Syntax rules for LPALSTxx..................................................................................................................631Syntax format of LPALSTxx................................................................................................................ 632Syntax example of LPALSTxx............................................................................................................. 632IBM-supplied default for LPALSTxx...................................................................................................633Statements and parameters for LPALSTxx........................................................................................633

Chapter 75. MMSLSTxx (MVS message service list)............................................................................... 635Selecting an MMSLSTxx member.......................................................................................................635Parameter in IEASYSxx...................................................................................................................... 635Sample MMSLSTxx member.............................................................................................................. 635Syntax rules for MMSLSTxx................................................................................................................635Syntax format of MMSLSTxx.............................................................................................................. 636Syntax example for MMSLSTxx..........................................................................................................636IBM-supplied default for MMSLSTxx................................................................................................. 636Statements and parameters for MMSLSTxx...................................................................................... 636

Chapter 76. MPFLSTxx (message processing facility list)...................................................................... 639Parameter in IEASYSxx...................................................................................................................... 639Syntax rules for MPFLSTxx.................................................................................................................639Selecting MPFLSTxx members...........................................................................................................640IBM-supplied MPFLSTxx member..................................................................................................... 640Controlling message presentation through MPFLSTxx..................................................................... 640

Syntax for controlling message presentation.............................................................................. 640IBM-supplied defaults for .MSGCOLR..........................................................................................641Displaying the message presentation attributes for the current MPFLSTxx...............................641MPFLSTxx parameters for controlling message presentation.....................................................641

Controlling message management....................................................................................................643Specifying message management............................................................................................... 643Syntax for controlling message management............................................................................. 644IBM-supplied defaults for message management...................................................................... 645Listing the message processing attributes for the current MPFLSTxx........................................ 645Using other methods to suppress messages...............................................................................