Hp Hitachi Dynamic Link Manager Software Uživatelský manuál Strana 40
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Hodnocené. / 5. Na základě hodnocení zákazníků
2. HDLM Functions
18
Figure 2-7: Overview of load balancing
(2) When Using the Lightning 9900V Series, Hitachi USP, Universal Storage
Platform V/VM, Virtual Storage Platform, Hitachi AMS2000 Series, or Hitachi SMS
All online paths are owner paths. Therefore, for the example in Figure 2-6: Flow of
I/O Data When the Load Balancing Function Is Used, the load is balanced among the
four paths A, B, C, and D. If one of the paths were to become unusable, the load would
be balanced among the three, remaining paths.
2.6.2 Load Balancing Algorithms
HDLM has the following six load balancing algorithms:
• The Round Robin algorithm
• The Extended Round Robin algorithm
• The Least I/Os algorithm
• The Extended Least I/Os algorithm
• The Least Blocks algorithm
- 3000-3-F01-50(E) 1
- Summary of Amendments 3
- Intended Readers 5
- Organization of This Manual 5
- Related Publications 6
- Conventions: Abbreviations 6
- Conventions: Diagrams 11
- • General font conventions 12
- MakeDatabase 13
- StoreDatabase temp DB32 13
- Contents 15
- 4. HDLM Operation 177 17
- 5. Troubleshooting 217 18
- 6. Command Reference 227 18
- 7. Utility Reference 303 19
- 8. Messages 349 20
- Appendixes 467 20
- Index 483 21
- 1. Overview of HDLM 23
- 1.1 What is HDLM? 24
- • Thunder 9500V series 25
- • Lightning 9900V series 25
- • Virtual Storage Platform 25
- 1.2 HDLM Features 26
- 2. HDLM Functions 27
- 2.1 Devices Managed by HDLM 28
- 2.2 System Configuration 29
- Components Description 31
- 2.3 LU Configuration 32
- 2.4 Program Configuration 34
- PATH_ID value (fourth key) 45
- PATH_ID value (third key) 45
- 2.7.2 Manual path switching 49
- 2.7.3 Path status transition 50
- Offline(E) 51
- Online status 55
- Offline(C) 59
- Offline(E) or Online(E) 60
- 2.10 Error management 61
- /var/DynamicLinkManager/ 64
- DLMgetras) 65
- Audit Log 67
- 2.11.4 Audit Log Data Formats 72
- -mm-ddThh:mm:ss.s time-zone 73
- BasicLog 73
- 2.13 Cluster support 77
- 3.1 HDLM System Requirements 80
- AIX V7.1 (Virtual I/O Server) 81
- OS Kernel 81
- XP_ODM 5.0.52.1 or later 82
- Configurations 84
- MISSCOUNT) might 86
- MISSCOUNT value 86
- /etc 150 KB 87
- /opt 2 MB 87
- /usr 220 MB 87
- 3.4.4 Notes on a License Key 94
- 3.4.5 Notes on Trace Files 94
- 3.4.7 Notes on the Cluster 95
- HDLM-Managed device 96
- 3.5 Installing HDLM 97
- # mount -p 102
- # umount /mntpt 102
- # varyoffvg volume-group-name 102
- Available hdisk10 fscsi1 113
- # cfgmgr 127
- # lsdev -Cc disk 127
- HDevName column in 157
- 3.7 Setting up HDLM 158
- (1) Setting Up Load Balancing 159
- 1 and then 171
- 2 and then 171
- 4 and then 172
- ! and press the 172
- Monitoring Interval 173
- 7 and press 174
- Settings 175
- 3.10 Settings for Using HACMP 178
- 3.11 Settings for Using GPFS 181
- DISKTIMEOUT 183
- 3.13 Settings for Using VCS 185
- 3.14 Uninstalling HDLM 187
- 3.14.2 Uninstalling HDLM 187
- (HNTRLib2) 196
- (HNTRLib) 197
- 4. HDLM Operation 199
- 4.1 Notes on Using HDLM 200
- 4.1.3 Storage System 201
- Viewed From the Same Server 202
- Disk Environment 202
- 4.2.1 Notes on Using Commands 204
- 4.2.4 Viewing LU Information 207
- 4.2.9 Updating the License 211
- 4.4 HDLM Resident Processes 216
- 4.5.3 Changing a Path 224
- 4.5.4 Replacing an HBA 227
- 4.5.5 Replacing a Fiber Cable 233
- number 1 (fscsi1): 234
- number that corresponds to 235
- number is 1 235
- 5. Troubleshooting 239
- HDLM Error Information 240
- 5.3.1 Examining the messages 244
- 5.3.2 Obtain path information 244
- 5.4.1 Examining the Messages 246
- 6. Command Reference 249
- ") 251
- 6.2.1 Format 252
- 6.2.2 Parameters 252
- 6.3.1 Format 254
- 6.3.2 Parameter 254
- Format 256
- 6.4.1 Format 257
- 6.4.2 Parameters 257
- 6.5.1 Format 264
- 6.5.2 Parameters 264
- 6.6.1 Format 271
- 6.6.2 Parameters 271
- -intvl checking-interval 276
- Type Description 282
- 6.7.1 Format 288
- 6.7.2 Parameters 289
- -sys) to specify the program 290
- IO-Errors ie 299
- DNum dnu 299
- HDevName hd 299
- Displayed path information 303
- -path parameter or 303
- -path -item parameter 303
- -path -c parameter 303
- -: Not displayed 306
- -item parameter 307
- SLPR slpr 310
- PathName pn 310
- All items are displayed all 311
- Displayed LU information 314
- ChaPort) 320
- = yyyy/mm/dd hh:mm:ss 323
- 7. Utility Reference 325
- 7.1 Overview of the Utilities 326
- /dev directory 328
- The number of LUs is 256 329
- 7.2.1 Format 330
- 7.2.2 Parameters 330
- 7.3.1 Format 338
- 7.3.2 Parameters 338
- Information 341
- 7.4.1 Format 341
- 7.4.2 Parameters 341
- utility 342
- 7.5.1 Format 345
- 7.5.2 Parameter 345
- 7.6.1 Format 346
- 7.6.2 Parameters 346
- 7.7.1 Format 348
- 7.7.2 Parameters 348
- 7.8.1 Format 351
- 7.8.2 Parameters 351
- 7.9.1 Format 352
- 7.9.2 Parameters 352
- Usage : dlmpr {{ -k 354
- ...] [-a] 354
- 7.10.1 Format 355
- 7.10.2 Parameters 355
- 7.11.1 Format 356
- 7.11.2 Parameters 356
- 7.12.1 Format 358
- 7.12.2 Parameters 358
- [ODM_SETTINGS] section 362
- 7.12.4 Log file 367
- 7.13.1 Format 369
- 7.13.2 Parameters 369
- 7.13.3 Log file 369
- 8. Messages 371
- • HDLM manager 373
- • HDLM alert driver 373
- • HDLM management target 373
- 8.2 KAPL01001 to KAPL02000 374
- KAPL01005-W 375
- KAPL01006-W 375
- KAPL01007-W 375
- KAPL01008-W 375
- KAPL01009-W 376
- KAPL01012-E 376
- KAPL01013-E 376
- KAPL01014-W 377
- KAPL01015-W 377
- KAPL01016-W 377
- KAPL01018-W 378
- KAPL01019-W 378
- KAPL01021-E 379
- KAPL01023-W 379
- KAPL01024-W 379
- KAPL01036-E 379
- KAPL01039-W 380
- KAPL01040-W 380
- KAPL01041-E 380
- KAPL01044-W 380
- KAPL01045-W 381
- KAPL01048-W 381
- KAPL01049-I 381
- KAPL01050-I 382
- KAPL01051-I 382
- KAPL01052-I 382
- KAPL01053-I 383
- KAPL01054-W 383
- KAPL01055-I 383
- KAPL01056-I 384
- KAPL01057-I 384
- KAPL01058-W 384
- KAPL01059-W 385
- KAPL01060-I 385
- KAPL01061-I 385
- KAPL01063-I 386
- KAPL01068-I 386
- KAPL01069-W 386
- KAPL01070-E 386
- KAPL01076-I 388
- KAPL01078-W 388
- KAPL01079-W 388
- KAPL01080-W 388
- KAPL01081-E 389
- KAPL01082-E 389
- KAPL01083-I 389
- KAPL01084-W 390
- KAPL01088-W 390
- KAPL01089-E 390
- KAPL01095-E 391
- KAPL01096-E 391
- KAPL01097-W 391
- KAPL01100-I 391
- KAPL01101-W 392
- KAPL01102-I 392
- KAPL01103-I 392
- KAPL01104-I 392
- KAPL01112-E 393
- KAPL01114-W 393
- KAPL01115-W 394
- KAPL01116-W 394
- KAPL01117-W 394
- KAPL01118-W 394
- KAPL01119-W 395
- KAPL01120-W 395
- KAPL01121-W 395
- 8.3 KAPL03001 to KAPL04000 396
- KAPL03007-E 397
- KAPL03008-E 397
- KAPL03999-E 397
- 8.4 KAPL04001 to KAPL05000 399
- KAPL04009-E 400
- KAPL04010-E 400
- KAPL04011-E 400
- KAPL04012-E 401
- KAPL04013-E 401
- KAPL04014-E 401
- KAPL04019-E 401
- KAPL04021-I 402
- KAPL04022-W 402
- KAPL04023-E 402
- KAPL04024-C 403
- KAPL04025-C 403
- KAPL04026-I 403
- KAPL04027-I 403
- KAPL04045-I 406
- KAPL04046-E 406
- 8.5 KAPL05001 to KAPL06000 407
- KAPL05014-I 408
- KAPL05018-W 408
- KAPL05021-I 408
- KAPL05023-E 409
- KAPL05501-E 409
- KAPL05819-I 409
- 8.6 KAPL06001 to KAPL07000 411
- KAPL06013-E 412
- KAPL06014-E 412
- DLMgetras utility for 413
- 8.7 KAPL07001 to KAPL08000 414
- 8.8 KAPL08001 to KAPL09000 415
- KAPL08023-I 416
- KAPL08026-E 416
- PathID = aa...aa 417
- 8.9 KAPL09001 to KAPL10000 418
- KAPL09020-E 419
- KAPL09021-E 419
- KAPL09022-E 419
- KAPL09023-E 419
- KAPL09024-E 420
- KAPL09025-W 420
- KAPL09028-E 420
- KAPL09029-E 421
- KAPL09047-E 421
- KAPL09048-E 421
- KAPL09076-I 421
- KAPL09091-E 424
- KAPL09100-E 424
- KAPL09112-E 424
- KAPL09113-E 424
- KAPL09114-I 425
- KAPL09115-W 425
- KAPL09116-W 425
- KAPL09135-E 426
- KAPL09142-E 426
- KAPL09143-E 426
- KAPL09171-E 427
- KAPL09172-E 427
- KAPL09179-I 427
- KAPL09183-I 427
- KAPL09187-W 428
- KAPL09188-W 428
- KAPL09190-W 428
- KAPL09191-W 428
- KAPL09210-I 429
- KAPL09211-I 429
- KAPL09212-E 429
- KAPL09213-W 429
- KAPL09214-W 430
- KAPL09215-E 430
- KAPL09216-E 431
- KAPL09217-E 432
- KAPL09218-E 432
- KAPL09219-E 433
- KAPL09220-W 433
- KAPL09221-W 433
- KAPL09227-W 434
- KAPL09228-W 434
- KAPL09229-W 434
- KAPL09230-W 435
- KAPL09231-W 435
- KAPL09232-W 435
- KAPL09233-W 436
- KAPL09234-W 436
- KAPL09235-E 436
- KAPL09236-W 437
- KAPL09237-I 437
- KAPL09238-W 438
- KAPL09239-I 438
- KAPL09241-W 438
- KAPL09242-E 439
- KAPL09243-I 439
- KAPL09246-E 439
- KAPL09247-E 439
- KAPL09248-W 440
- KAPL09504-E 440
- KAPL09601-E 440
- KAPL09602-E 440
- KAPL09603-E 441
- KAPL09604-E 441
- 8.10 KAPL10001 to KAPL11000 442
- KAPL10005-W 443
- KAPL10006-W 443
- KAPL10007-W 443
- KAPL10008-W 443
- KAPL10009-W 444
- KAPL10010-W 444
- KAPL10011-W 444
- KAPL10012-W 445
- KAPL10013-W 445
- KAPL10014-W 446
- KAPL10015-W 446
- KAPL10016-W 447
- KAPL10017-W 447
- KAPL10020-I 447
- KAPL10021-I 447
- KAPL10034-E 449
- KAPL10035-E 449
- KAPL10036-E 449
- KAPL10049-I 450
- KAPL10050-I 450
- KAPL10521-W 450
- KAPL10523-E 450
- KAPL10524-E 451
- KAPL10525-E 451
- KAPL10526-I 451
- KAPL10556-W 454
- KAPL10557-I 454
- KAPL10558-E 454
- KAPL10559-E 454
- KAPL10560-E 455
- KAPL10561-I 455
- KAPL10571-I 455
- KAPL10572-W 455
- KAPL10583-E 458
- KAPL10584-E 458
- KAPL10585-I 459
- KAPL10586-I 459
- KAPL10587-W 459
- KAPL10588-W 460
- KAPL10641-I 460
- KAPL10642-I 460
- KAPL10643-W 460
- KAPL10644-W 461
- KAPL10645-W 461
- KAPL10646-W 461
- KAPL10648-E 461
- KAPL10649-E 462
- KAPL10650-I 462
- KAPL10651-I 462
- KAPL10801-W 464
- KAPL10802-W 464
- KAPL10804-E 464
- dlmodmset utility, see 466
- 8.11 KAPL11001 to KAPL12000 467
- KAPL11903-I 468
- KAPL11904-E 468
- KAPL11905-E 469
- KAPL11906-I 469
- XML reception - aa...aa 470
- XML transmission - aa...aa 470
- 8.12 KAPL13001 to KAPL14000 471
- KAPL13008-W 472
- KAPL13009-W 472
- KAPL13010-W 472
- KAPL13011-W 472
- KAPL13012-W 473
- KAPL13013-E 473
- KAPL13014-E 473
- KAPL13015-E 473
- KAPL13107-I 476
- KAPL13108-E 476
- KAPL13109-W 476
- KAPL13110-E 476
- KAPL13601-W 477
- KAPL13602-W 477
- KAPL13603-W 477
- KAPL13604-W 477
- KAPL13605-W 478
- KAPL13606-W 478
- 8.13 KAPL15001 to KAPL16000 479
- Component 483
- DLMgetras utility, see 484
- DLMgetras 485
- Appendixes 489
- B.1 Add-in HDLM Driver Module 491
- Corresponding AIX commands 494
- PR_exclusive 495
- SCSI Disks 496
- C. Glossary 497
- AutoPATH_ID 501
- , 254, 475 505
- , 8, 476 505
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