IBM SC34-7012-01 Bedienungsanleitung Seite 6
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Journal names and journal models......58
Terminal control resources ........58
Distributed transaction resources ......59
URIMAP definitions and virtual hosts ....59
Chapter 6. CICS emergency restart . . 61
Recovering after a CICS failure ........61
Recovering information from the system log . . 61
Driving backout processing for in-flight units of
work ...............61
Concurrent processing of new work and backout 61
Other backout processing.........62
Rebuilding the CICS state after an abnormal
termination ..............62
Files ................62
Temporary storage ...........63
Transient data ............63
Start requests .............64
Terminal control resources ........64
Distributed transaction resources ......65
Chapter 7. Automatic restart
management ............67
CICS ARM processing ...........67
Registering with ARM ..........68
Waiting for predecessor subsystems .....68
De-registering from ARM.........68
Failing to register ...........69
ARM couple data sets ..........69
CICS restart JCL and parameters .......69
Workload policies ............70
Connecting to VTAM ...........70
The COVR transaction..........71
Messages associated with automatic restart . . . 71
Automatic restart of CICS data-sharing servers . . 71
Server ARM processing .........71
Chapter 8. Unit of work recovery and
abend processing ..........73
Unit of work recovery ...........73
Transaction backout ..........74
Backout-failed recovery .........79
Commit-failed recovery .........83
Indoubt failure recovery .........84
Investigating an indoubt failure .......85
Recovery from failures associated with the coupling
facility ................88
Cache failure support ..........88
Lost locks recovery ...........89
Connection failure to a coupling facility cache
structure ..............91
Connection failure to a coupling facility lock
structure ..............91
MVS system recovery and sysplex recovery . . 91
Transaction abend processing ........92
Exit code ..............92
Abnormal termination of a task.......93
Actions taken at transaction failure ......94
Processing operating system abends and program
checks ................94
Chapter 9. Communication error
processing .............97
Terminal error processing..........97
Node error program (DFHZNEP) ......97
Terminal error program (DFHTEP) .....97
Intersystem communication failures ......98
Part 3. Implementing recovery and
restart ..............99
Chapter 10. Planning aspects of
recovery .............101
Application design considerations ......101
Questions relating to recovery requirements . . 101
Validate the recovery requirements statement 102
Designing the end user’s restart procedure . . 103
End user’s standby procedures ......103
Communications between application and user 103
Security ..............104
System definitions for recovery-related functions 104
Documentation and test plans ........105
Chapter 11. Defining system and
general log streams ........107
Defining log streams to MVS ........108
Defining system log streams ........108
Specifying a JOURNALMODEL resource
definition..............109
Model log streams for CICS system logs . . . 110
Activity keypointing ..........112
Defining forward recovery log streams .....116
Model log streams for CICS general logs . . . 117
Merging data on shared general log streams . . 118
Defining the log of logs ..........118
Log of logs failure ...........119
Reading log streams offline ........119
Effect of daylight saving time changes .....120
Adjusting local time ..........120
Time stamping log and journal records ....120
Chapter 12. Defining recoverability for
CICS-managed resources ......123
Recovery for transactions .........123
Defining transaction recovery attributes . . . 123
Recovery for files ............125
VSAM files .............125
Basic direct access method (BDAM) .....126
Defining files as recoverable resources ....126
File recovery attribute consistency checking
(non-RLS) .............129
Implementing forward recovery with
user-written utilities ..........131
Implementing forward recovery with CICS
VSAM Recovery MVS/ESA .......131
Recovery for intrapartition transient data ....131
Backward recovery ..........131
Forward recovery ...........133
Recovery for extrapartition transient data ....134
iv CICS TS for z/OS 4.1: Recovery and Restart Guide
- Recovery and Restart Guide 1
- Contents 5
- Contents v 7
- What this book is about 9
- Who should read this book 9
- How to use this book 9
- Release 1 11
- Logging changes 15
- The role of CICS 16
- Recoverable resources 17
- Emergency restart backout 18
- CICS forward recovery 19
- XCF/MRO partner failures 21
- Units of work 25
- Shunted units of work 25
- Synchronization points 27
- CICS recovery manager 29
- Recovery 30
- CICS system log 33
- System activity keypoints 34
- Forward recovery logs 34
- Normal shutdown processing 37
- First quiesce stage 37
- Second quiesce stage 38
- Third quiesce stage 38
- Warm keypoints 39
- Flushing journal buffers 40
- Uncontrolled termination 42
- Cataloging CICS resources 43
- Global catalog 43
- Local catalog 44
- Warm restart 47
- Emergency restart 47
- Cold start 48
- Dynamic RLS restart 49
- Chapter 4. CICS cold start 57
- Temporary storage 59
- Transient data 59
- Monitoring and statistics 61
- Terminal control resources 61
- Dump table 62
- Chapter 4. CICS cold start 51 63
- Chapter 5. CICS warm restart 65
- Data set name blocks 66
- Transactions 68
- LIBRARY resources 68
- Programs 68
- Start requests 69
- Other backout processing 74
- CICS ARM processing 79
- Registering with ARM 80
- De-registering from ARM 80
- Failing to register 81
- ARM couple data sets 81
- Workload policies 82
- Connecting to VTAM 82
- The COVR transaction 83
- Server ARM processing 83
- Unit of work recovery 85
- Transaction backout 86
- Intrapartition transient data 88
- Auxiliary temporary storage 88
- START requests 88
- EXEC CICS CANCEL requests 90
- Backout-failed recovery 91
- Commit-failed recovery 95
- Indoubt failure recovery 96
- Cache failure support 100
- Lost locks recovery 101
- Transaction abend processing 104
- Exit code 104
- Transaction restart 105
- Terminal error processing 109
- Node error program (DFHZNEP) 109
- End user’s standby procedures 115
- Security 116
- Documentation and test plans 117
- About this task 119
- Defining log streams to MVS 120
- Defining system log streams 120
- Recovery considerations 122
- Activity keypointing 124
- Log-tail deletion 126
- Writing user-recovery data 127
- Long-running transactions 128
- Procedure 128
- What to do next 129
- Defining the log of logs 130
- Log of logs failure 131
- Reading log streams offline 131
- Adjusting local time 132
- Recovery for transactions 135
- Recovery for files 137
- VSAM files 137
- Forward recovery 138
- Backward recovery 138
- BDAM files 141
- The CSD data set 141
- Logical recovery 144
- Physical recovery 144
- Recovery for Web services 148
- Persistent message processing 150
- SAA-compatible applications 155
- Program design 155
- Processing dialogs with users 156
- Main storage areas 157
- CICS recoverable resources 157
- Terminal paging through BMS 160
- Using transient data queues 160
- Transaction failures 161
- HANDLE ABEND commands 162
- Dynamic transaction backout 162
- System failures 163
- START TRANSID commands 165
- Implicit locking for files 166
- Recoverable files 167
- XRCINIT exit 173
- XRCINPT exit 173
- XFCBFAIL global user exit 173
- XFCLDEL global user exit 174
- XFCBOVER global user exit 174
- XFCBOUT global user exit 174
- The CICS-supplied PEP 175
- Your own PEP 176
- Omitting the PEP 177
- Quiescing RLS data sets 179
- INQUIRE DSNAME 187
- INQUIRE UOWDSNFAIL 187
- SHCDS LIST subcommands 188
- CEMT command examples 190
- A special case: lost locks 192
- Overriding retained locks 192
- Post-batch processing 193
- Using the REPRO method 195
- Rebuilding alternate indexes 198
- //SYSIN DD * 200
- SHCDS FRSETRR(old_dsname) 200
- SHCDS FRUNBIND(old_dsname) 200
- Catalog recovery 209
- BWO and concurrent copy 215
- BWO and backups 215
- BWO requirements 216
- Hardware requirements 217
- How you request BWO 218
- Removing BWO attributes 220
- Systems administration 220
- BWO processing 221
- File opening 222
- File closing (non-RLS mode) 224
- Shutdown and restart 225
- Data set backup and restore 225
- VSAM access method services 226
- Forward recovery logging 227
- Chapter 19. Disaster recovery 235
- Disaster recovery testing 236
- Tier 0: no off-site data 237
- Tier 1 - physical removal 237
- Tier 3 - electronic vaulting 239
- Tier 0–3 solutions 240
- Tier 0 - 3 241
- 37453745 242
- Tier 4–6 solutions 245
- PPRC or XRC? 247
- Remote Recovery Data Facility 248
- Disaster recovery facilities 250
- Final summary 252
- Part 4. Appendixes 253
- Trademarks 256
- Bibliography 257
- Other CICS publications 258
- Accessibility 259
- SC34-7012-01 266
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