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Reusing Space
User Reference
Connectivity Systems, Inc.—Copyright © 2006
Use Pursuant to Company Instructions
7-11
Reusing Space
DSN Catalog If you want to write a new version of a disk dataset in the same location in
order to reuse the space, catalog the dataset as work and zero secondary
allocations. For example, you can indicate WRK using Online Manager
or WRK=YES using TSIDMNT.
JCL
Requirements
Each time the dataset is created or modified, consider inhibiting
truncation. This leaves space in the extent for a larger dataset the next
time the dataset is processed. To inhibit truncation with a DLBL, specify
option N in the dataset name. To inhibit truncation with a DD statement,
use the SPACE parameter, but do not specify RLSE.
Each time the dataset is modified, you must indicate that you want to
reuse the same space. To reuse space with a DLBL, specify option S in
the dataset name. To inhibit truncation with a DD statement, specify
DISP=(MOD,KEEP).
Examples The following is an example of a job statement for reusing space.
// DLBL OUTPUT,'DATA.FILE,(N,S)'
* //OUTPUT DD DSN=DATA.FILE,UNIT=DISK,
* // DISP=(MOD,KEEP),SPACE=(TRK,0)
- User Reference 1
- Contents 3
- Chapter 8 BIM-EPIC Utilities 8
- Examples 10
- Trademark Information 11
- Command 12
- Parameter 13
- Business Hours 15
- After-Hours 16
- Emergency 16
- Related Publications 17
- Introduction 19
- BIM-EPIC Fundamentals 20
- Controlled Datasets 21
- Start Track 1 Datasets 22
- Configuration 23
- Other Types of Datasets 24
- BIM-EPIC Datasets 25
- 1-8 User Reference 26
- BIM-EPIC Dataset Definitions 28
- Retention 30
- Revolving Tape 32
- Vault Method 32
- Allocation by 34
- Logical 34
- Versioning Datasets 35
- Volume Serial 36
- File Sequence 36
- Current Vault 38
- Location 38
- Retaining Dataset 42
- 1-26 User Reference 44
- Overriding Standard Retention 45
- Purging Dataset Information 46
- Recording Dataset Activity 47
- 1-30 User Reference 48
- Managing Tape Devices 49
- Early Drive 50
- Release 50
- Managing Disk Devices 52
- Creating Reports 54
- Activating BIM-EPIC 55
- 1-38 User Reference 56
- BIM-EPIC Job Control Language 57
- 1-40 User Reference 58
- BIM-EPIC Tape Processing 60
- End-of-Volume 61
- BIM-EPIC Disk Processing 62
- Space Holder 63
- Using Disk Processing 64
- 1-46 User Reference 64
- BIM-EPIC Online Manager 65
- Using Online Manager 66
- Exiting Online 68
- Manager 68
- Executing Management Commands 69
- Configuring Online Manager 70
- Maintaining User Profiles 71
- Modify EDD 72
- Display Panel 72
- Customizing Version Displays 74
- Customizing Profile Defaults 76
- Using Online Manager Help 78
- Search Catalog 80
- Managing Dataset Definitions 82
- Manage EDDs 83
- DISPLAY 83
- Creating a Dataset Definition 86
- Updating a Dataset Definition 88
- Deleting a Dataset Definition 94
- Managing Dataset Versions 96
- Versions Panel 98
- Displaying Version Attributes 100
- Adding Version Information 101
- 2-38 User Reference 102
- Locking a Version 103
- Using TSIDMNT 104
- Closing a Version 105
- DELETE and 107
- Managing Tapes 108
- 2-46 User Reference 110
- Note:Note: 110
- Tape Volume 111
- Information 111
- Manage Tape 112
- Volumes Panel 112
- Chapter 3, “ 113
- Purging a Tape Volume 114
- Recording Tape Cleaning 115
- 2-52 User Reference 116
- 2-54 User Reference 118
- Retain a 119
- Version Panel 119
- Cycling a Dataset Version 121
- Cycle a Version 122
- Procedure To cycle a version: 122
- Scratching a Dataset Version 123
- Establishing Online Security 125
- Secured Users 126
- Creating Security Profiles 128
- Changing 129
- Security 129
- Settings 129
- Administration 130
- 2-68 User Reference 132
- TSIDMNT—DSN CATALOG 133
- MANAGEMENT UTILITY 133
- TSIDMNT Command Summary 134
- TSIDMNT Command List 136
- TSIDMNT Command Overview 137
- ADD Command 138
- 3-8 User Reference 140
- ADS Command 142
- 3-12 User Reference 144
- CAPACITY Command 145
- CATALOG Command 146
- 3-16 User Reference 148
- 3-18 User Reference 150
- 3-20 User Reference 152
- CLEAN Command 154
- CLOSE Command 155
- CYCLE Command 156
- DELETE Command 158
- DEQ Command 159
- DISPLAY Command 160
- [DPW=password] 161
- 3-30 User Reference 162
- ENQ Command 163
- LOCK Command 164
- MCATALOG Command 165
- 3-34 User Reference 166
- MOVE Command 167
- OFFLINE Command 168
- ONLINE Command 169
- PASSWORD Command 170
- PURGE Command 171
- 3-40 User Reference 172
- QUIESCE Command 173
- RELEASE Command 174
- RENAME Command 176
- RETAIN Command 177
- 3-46 User Reference 178
- SCRATCH Command 180
- TRANSFER Command 182
- UNLOCK Command 184
- UPDATE Command 186
- –Data Encryption Standard 187
- –Data Encryption Standard 3 187
- –Advanced Encryption Standard 187
- 3-56 User Reference 188
- BIM-EPIC TLBL and DLBL 189
- Statements 189
- TLBL Statements and Options 190
- TLBL Statements 191
- 4-4 User Reference 192
- —Buffered write mode (3490E) 193
- —Buffered write mode with 193
- 4-6 User Reference 194
- TLBL Options 195
- 4-8 User Reference 196
- DLBL Statements and Options 198
- DLBL Options 199
- 4-12 User Reference 200
- 4-14 User Reference 202
- Accessing the DSN Catalog 203
- TSIDUTL DSPLY 204
- 5-4 User Reference 206
- Accessing DSN Catalog Records 208
- Sequential and 209
- TSIDAC2 Subroutine 210
- 5-8 User Reference 210
- Search Arguments and Calls 211
- Sequential 212
- 5-12 User Reference 214
- ADDRESS EPIC 215
- Processing 216
- BIM-EPIC DD Statement 217
- DD Statements 218
- DD Statement Overview 219
- DD Statement Syntax 220
- Specifying 221
- Dataset Drop 221
- Concatenating 221
- Datasets 221
- 6-6 User Reference 222
- DD Statement Names 223
- 6-8 User Reference 224
- DD Parameters 226
- 6-12 User Reference 228
- VSAM IDCAMS datasets 230
- AMP Parameter 231
- DCB Parameter 232
- 6-18 User Reference 234
- DISP Parameter 235
- 6-20 User Reference 236
- 6-22 User Reference 238
- Using DDGEN 239
- 6-24 User Reference 240
- Additional DISP 241
- DSN Parameter 242
- 6-28 User Reference 244
- FREE Parameter 245
- LABEL Parameter 246
- OPTION Parameter 248
- 6-34 User Reference 250
- 6-36 User Reference 252
- SPACE Parameter 254
- Uncontrolled 256
- Dataset Syntax 256
- UNIT Parameter 258
- 6-44 User Reference 260
- VOLUME Parameter 261
- 6-46 User Reference 262
- 6-48 User Reference 264
- 6-50 User Reference 266
- 6-52 User Reference 268
- Running Jobs With 269
- BIM-EPIC 269
- Dataset Considerations 270
- Using JCL and the DSN Catalog 271
- 7-4 User Reference 272
- Naming Datasets 274
- Using ASSGN 275
- Inhibiting LUB 275
- Allocation 275
- 7-8 User Reference 276
- Disk Processing 277
- Reusing Space 279
- Tape Processing 280
- Multi-Volume Processing 282
- Multi-Dataset Processing 283
- Scratching 284
- Multi-Dataset 284
- Requirements 285
- 7-20 User Reference 288
- 7-22 User Reference 290
- Types of Datasets 293
- Direct Access Datasets 294
- ISAM Datasets 295
- 7-28 User Reference 296
- Common Work Datasets 298
- 7-32 User Reference 300
- TYPEFLE=WORK DTF Datasets 302
- Compiler Work Datasets 303
- Uncontrolled Datasets 304
- Physical IOCS Processing 305
- 7-38 User Reference 306
- Sort Programs 307
- 7-40 User Reference 308
- Sorting Specifics 309
- 7-42 User Reference 310
- Using SORTWK Datasets 311
- Additional Functionality 313
- 7-46 User Reference 314
- 7-48 User Reference 316
- Using DITTO 317
- 7-50 User Reference 318
- Printer/Punch Tape Spooling 320
- If TAPLUB=NO is set: 323
- GETVIS Requirements 324
- 7-58 User Reference 326
- JCL Functions 327
- Restarting From a Checkpoint 328
- 7-60 User Reference 328
- Choosing the Device Type 329
- 7-62 User Reference 330
- Independence 332
- Using Concatenating Datasets 334
- Name (Dataset Drop) 336
- 7-70 User Reference 338
- BIM-EPIC Utilities 339
- Utility Programs 340
- Pre-Open Processing (TSIDASS) 342
- 8-4 User Reference 342
- CHECK dtfname 343
- Sort Interface (TSIDSRT) 346
- Deleting Datasets (TSIDDEL) 348
- .SORTWK1,(D)' 349
- 8-12 User Reference 350
- Tape Formats 351
- Supported 351
- Control 351
- Statement 352
- Parameters 352
- 8-16 User Reference 354
- 8-18 User Reference 356
- Printing Datasets (TSIDDMP) 358
- 8-24 User Reference 362
- TSIDPLB) 364
- 8-28 User Reference 366
- POOL poolid 367
- 8-30 User Reference 368
- Job Management Control 369
- Language 369
- Using JMCL Statements 370
- Using JOB Statements 371
- Using Comment Statements 372
- Using JMCL Parameters 373
- JCL Syntax Checking 374
- 9-6 User Reference 374
- 9-8 User Reference 376
- * JMCL parameter 376
- IF and Conditions 378
- 9-12 User Reference 380
- Setting Values 381
- 9-14 User Reference 382
- Symbolic Replacements 383
- 9-16 User Reference 384
- Parameter Definition 385
- 9-18 User Reference 386
- Using the JMCL Interface 387
- 9-20 User Reference 388
- Retrieving JMCL Data 389
- Updating JMCL Data 390
- Assembler 391
- TSIDJC2 Return Codes 392
- Executing CP Commands 393
- 9-26 User Reference 394
- BIM-EPIC Job Scheduling 395
- Job Scheduling Activities 396
- Event Scheduling Activites 397
- 10-4 User Reference 398
- 10-6 User Reference 400
- Executing Various Activities 401
- 10-8 User Reference 402
- Executing in CICS 403
- Return Codes 404
- Processing Requirements 406
- Modes of 407
- Execution 407
- SET Control Statement 408
- JCL Examples 409
- 10-16 User Reference 410
- Job Activity Reports 411
- Recorder History 412
- Activity Log Report (TSIDARP) 413
- 11-4 User Reference 414
- 11-6 User Reference 416
- 11-8 User Reference 418
- 11-10 User Reference 420
- 11-12 User Reference 422
- Accessing Job 424
- Accounting 424
- Database 424
- Navigating in 424
- Managing Tape Volumes 425
- Tape Utilities and Commands 426
- 12-4 User Reference 428
- Attention Routine Commands 430
- FREE and STATUS Commands 432
- Tape Controls 433
- Requesting a 434
- Specific 434
- Tape Print Requirements 440
- Printing Labels 441
- Automatically 441
- 12-18 User Reference 442
- Tape Vaulting Processes 443
- Additional 444
- Moving Volumes (TSIDVLT) 446
- 12-24 User Reference 448
- Manually Controlled Vaults 449
- 12-26 User Reference 450
- Tape Reports 451
- 12-28 User Reference 452
- Disk Space Management 453
- Dataset Fragmentation 455
- Converting to 456
- Start Track 1 456
- Procedure 456
- 13-6 User Reference 458
- VTOC Utilities 459
- VTOC Listings (TSIDLVT) 460
- 13-10 User Reference 462
- Online VTOC Displays 463
- Value Indicates… 466
- Offload and Onload 468
- Performance I/O 469
- Selection 470
- Criteria 470
- Dataset 471
- 13-22 User Reference 474
- 13-28 User Reference 480
- Onload versus 484
- 13-34 User Reference 486
- TSIDONL Control Statements 487
- Restart 488
- 13-38 User Reference 490
- 13-40 User Reference 492
- 13-42 User Reference 494
- 13-44 User Reference 496
- BIM-EPIC Report Fields and 497
- Customized Reports 498
- TOJA Report Examples 499
- Program 500
- Overview 500
- Display 500
- Program Audit 501
- A-6 User Reference 502
- TSIDARP Report 503
- A-8 User Reference 504
- TSIDBRP Report 506
- A-12 User Reference 508
- TSIDDIS Report 509
- A-14 User Reference 510
- TSIDJAC Report 511
- A-16 User Reference 512
- TSIDLVT Report 513
- A-18 User Reference 514
- TSIDMNT Report 515
- A-20 User Reference 516
- Version 517
- TSIDOFD Report 518
- TSIDOFL Report 520
- TSIDONL Report 522
- TSIDPRV Report 523
- A-28 User Reference 524
- TSIDSDS Report 525
- A-30 User Reference 526
- TSIDTAC Report 527
- A-32 User Reference 528
- TSIDUTL Report 529
- A-36 User Reference 532
- Tape Dataset Summary Report 533
- Expiration Date 534
- Creation Date 534
- Job Sequences 534
- Display Active Report 535
- DSPLY NEW Report 536
- DSPLY PULL Report 537
- DSPLY VAULT Report 538
- DSPLY SCRATCH Report 539
- A-44 User Reference 540
- TSIDVLT Report 542
- A-48 User Reference 544
- Numerics 545
- IN-2 User Reference 546
- IN-3User Reference 547
- IN-4 User Reference 548
- IN-5User Reference 549
- IN-6 User Reference 550
- IN-7User Reference 551
- IN-8 User Reference 552
- IN-9User Reference 553
- IN-10 User Reference 554
- IN-11User Reference 555
- IN-12 User Reference 556
- IN-13User Reference 557
- IN-14 User Reference 558
- IN-15User Reference 559
- IN-16 User Reference 560
- IN-17User Reference 561
- IN-18 User Reference 562
- IN-19User Reference 563
- IN-20 User Reference 564
- IN-21User Reference 565
- IN-22 User Reference 566
- IN-23User Reference 567
- IN-24 User Reference 568
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