SUMMARY OF AMENDMENTS. xi 1 INTRODUCTION Illustrations. 1
Figures.. 1 1 Diagrams Illustration Numbering ••• 2 CHAPTER 1. IBCDASDI--THE VIRTUAL DISK INITIALIZATION Introduction Invoking Virtual Disk
Initialization Program. METHOD OF OPERATION ••••• , PROGRAM ORGANIZATION IBCDASDI -- General Information.
Program Directory •••• Data Areas Track Zerc Unit Control Block Diagnostic Aids. .3 .3 .3 .5 .9 .9
.9 11
12 12 13
14 CHAPTER 2. IPCS--THE INTERACTIVE PROBLEM CONTROL SY STEM. 17
Introduction 17 IPCS Report Files. 17 Other IPC S Files .• '. 17 CP Abend Dumps 18
Method of Operatien. 19
Program Organization 38 DMMCPA -- Extracts Information
Pertinent to Individual Abend Conditions and Enters it in a Problem
Report. 38 DMMDIR -- Formats and Displays
Hexadecimal Data on the Terminal
Screen. 38 DMMDSC -- Provides a Method of
Examining the CMS Format CP Dumps Created by VMFDUMP. '. ... '... 38 DMMEDM -- Edits and Prints a CP Dump 39 DMMFED -- Displays 'nnn' Bytes from Address 'hexloc' ••••••• , •••• 39 DMMFEX -- Displays X'130' Bytes of the
Dump. 40 DMMGET -- Fetches Portions of the Dump
into Storage. ••• '. 40 DMMGRC -- Reads Dump Record Containing Data at a Given Address and Passes
Data Back to Caller 40 DMMHEX -- Translates EBCDIC to
Hexadecimal and Checks for Validity 41 DMMIDM -- Determines the Failing or Calling Module Name and Displacement
within the Module •••••••••• 41 DMMINI -- Initializes for Data
Extractien from the CMS File Containing the Dump '. 41 DMMINT -- Translates the Binary Data
to Printable Format 42 DMMIOB -- Displays the I/O Blocks. 42
Contents IMMLOC -- Locates 'string' 'from' 'to'
'increment' ••••••••••••• 42 IMMMAP -- Appends Compressed and
Sorted Load Map at End of Dump File 43 IMMMOD -- Locates Modules and Entry
Points in Load Map and Identifies
Module Containing Given Address 43 IMMPRG -- Handles the CP Program Check processing •••••••••••••• 43 IMMPRM -- Prompts User for
Supplementary Data Files and Textual
Notes about Failure IMMPRO -- Creates a Problem Report
through User Prompting. .• IMMREG -- Displays the Registers 44
44
44 IMMRMV -- Places Registers in the Text
Area of the Report ••••• __ ••• 45 IMMSCR -- Scrolls the Iisplay Up or Iown from the Last Address. 45 IMMSEA -- Locates any froblems which
are Duplicates of a Newly Entered Problem .. 45 IMMSTA -- Displays the Status of a
Given problem or Group of Problems cr
all Problems ••••••••••••• 46 IMMSUM -- Updates or Finds Symptcm
Summary Control Record for a Given
Problem and Passes it to Caller ••• 46 IMMTRC -- Displays 'nnn' Trace Entries 46 IMMTRN -- Translates Binary Data into
a Printable Format •••••••••• 47 IMMVME -- Displays all VMBLCR Addresses, User ids, and Status. 47 IMMWRT -- Creates a freblem Report en Disk and Adds this Preblem to the Symptom Summary File. " "7 '"t, Directory •••••••••• Data Areas .. SHARECON -- VMFDUMP Shared Ccnstant 48 53
Area. '. '. 53 INTSECT -- VMFDUMP and fRCB Internal
Data Area 57 SYMSECT -- Symptom Summary Centrol Record Format 58
Diagnostic Aids ••••••••••••• 60 CHAPTER 3. THE FCRMAT SEBVICE fBOGBAM •• 63
Introduction •• •••••••• 63
Format Operation •• ••••• 63
Label-Only Operation 63
Aliocation Operation 63
Executing the Format Program 63 Method of Operation. 65 Program Organization 69 IMKFMT 69
Directory. 70 Data Areas .. 71
Diagnostic Aids. ••••••• 80 CHAPTER 4. DMKDIR--THE DIBECTORY PROGRAM 81
Introduction •••••••••••••• 81
Contents v
Method of operation. Program Organization DMKDIR Directory.
Data Areas
Diagnostic Aids. 82 88 .• 88 89
91 92 CHAPTER 5. THE DASD DUMP RESTORE PROGRAM 93
Introduction DUMP ••• RESTORE. COpy •.•• PRINT •••••••• TYPE .• 93 93 93 93 Ie 93 93 Method of OFeration. _ _ 94 Program organization DMKDDR Directory. Data Areas •••••• Cylinder Header Record Track Header Record. lOB ••• Aids. _ CHAPTER 6. THE INSTALLATION VERIFICATION PROCEDURE •• Introduction _ Method of OFeration. Program Organization .102 ••••• 102 .• 103 .106 .106 ••••• 107 •••• 108 .110 .113
.113
.114 .120 Installation Verification Procedure
Routine Structuring Installation Verification Procedure
Testing .120 .121
.122
.123
Directory. . ••••••• Diagnostic Aids. CHAPTER 7. PROCEDURES FOR GENERATING
AND UPDATING VM/370 .125
.125
.125
.125
.125
.126
.127
.128
Introduction Update Files TXT Files •••••••• Control Files. System EXEC Procedures VMFLOAD Service prcgram. DMKLDOOE Service Program The VMFMAC Macro Library Update Procedure Method of Operation. Program Organization Directory •••••••••• Assemble Update Procedure. VMFLOAD Program. VMFMAC Procedure GENERATE Procedure Diagnositc Aids •••• VMFASM Prccedure DMSUPD Program VMFLOAD Program. VMFMAC Procedure GENERATE Procedure DMKLDOOE (Loader) Program.
Loader Wait State Codes •• .128 ••••• 129 •••• 149 150 .151
.153 •••• 153
.154 •••• 155 .• 155 .• .156 .• 157
.157
.158
.161 •••• 161 CHAPTER 8. THE VM/370 STARTER SYSTEM •• 163
Introduction 163
Method of Operation ••••••••••• 164
vi IBM VM/370 Service Routines Program Logic
program Organization IMKSSP Directory. Diagnostic Aids ••••• CHAPTER 9. THE 3704/3705 SERVICE PROGRAMS. _ •••• Introduction Method of Operation.
program Organization IMKRNI .166
.166 .167
.168
.169 •• 169 •• 170 .181 .• 181 •• 181 IMSARN ItlSARX •• IMSGRN ••••••• 182 .183 IMSLKD ••••••• 183 IMSNCP .184
Directory. •••••••• •• 185 1he NCPIUMP Command Processor (DMKRNI) •••••••••••• The ASM37C5 Command Processor (DMSARN) 1he ISM3705 Command Prccessor
.185
.186 (DMSARX) •••••••••••••• 1he GEN3705 Command Prccessor (DMSGRII) •••••••••••••• The LKEI Command Processor (DMSLKD) 1he SAVENCP Command Prccessor (DMSNCP). •• Data Areas .186
.187 188
.189 .190 ..190 .• 191
File System Control Block •••• Diagnostic Aids ••••••••• _ The NCPIUMP Command Processor (DtlKRNI) ••••••••••• 1he ASM3705 Command Prccessor .• 191 (DMSARN). .192 1he ASM3705 Command Processor (DMSARX). •••• .192 1he GEN3705 Command Processor (DMSGRN). .193 1he LKEI Command Processor (DtlSLKD) •• 193 1he SAVENCP Command Prccessor (DtlSNCF) ••••••••••••••• 194 CHAPTER 1e. THE ZAP SERVICE FReGRAM ••• 195
Introduction •• 195 DUMP. .195 VERIFY. .195 REPLACE. ••••••• 195 Method of Operation. ••••••• 196 Program Organization •••••••• 206 IMSZAP .206 Directory. .207 Data Areas ••• 209 Diagnositc Aids. ••••••• 210 1he ZAP Command Processor (DMSZAP) •• 210 CHAPTER 11. DMSIFC and IMSREA'-- EREP /Error Record ing Interface.211
Introduction ••••••• 211 Method of Operation. .212
program Organization. .215 IMSIFC .215 IMSREA .216
Directory. .218
Data Areas. .220 IMSREA .220 IMSIFC ••••••••••• 220 Diagnostic Aids. .221
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