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2. HDLM Functions
27
Figure 2-10: Path Switching
(2) Automatic Failbacks
When a path recovers from an error, HDLM can automatically place the recovered
path back online. This function is called the automatic failback function. In order to
use the automatic failback function, HDLM must already be monitoring error recovery
on a regular basis.
When using the Thunder 9500V series, or Hitachi AMS/WMS series, HDLM will
select the next path to be used first from among the online owner paths, and then from
the online non-owner paths. As a result, if an owner path recovers from an error, and
then HDLM automatically places the recovered path online while a non-owner path is
in use, the path will be automatically switched over from the non-owner path to the
owner path that just recovered from the error.
When the Lightning 9900 series, Lightning 9900V series, Hitachi USP, Universal
- 3000-3-F04-60(E) 1
- Summary of Amendments 3
- Intended Readers 5
- Organization of This Manual 5
- Related Publications 6
- Conventions: Abbreviations 7
- Conventions: Diagrams 13
- MakeDatabase 14
- StoreDatabase temp DB32 14
- Contents 17
- 4. HDLM Operation 329 20
- 5. Troubleshooting 387 21
- 6. Command Reference 397 21
- 7. Utility Reference 463 22
- 8. Messages 523 23
- Appendixes 691 23
- Index 715 24
- 1. Overview of HDLM 25
- 1.1 What is HDLM? 26
- • Lightning 9900V series 27
- • Thunder 9500V series 27
- • Virtual Storage Platform 27
- 1.2 HDLM Features 28
- 2. HDLM Functions 29
- 2.1 Devices Managed by HDLM 30
- 2.2 System Configuration 31
- Components Description 33
- 2.3 LU Configuration 36
- Table 2-3: LU Components 37
- 2.4 Program Configuration 38
- /dev/sddlm[aa-pap][1-15] 41
- 2.8.2 Manual Path Switching 52
- 2.8.3 Path Status Transition 53
- Failback Is Used) 56
- Online status 57
- Offline(E) 58
- Offline(C) 61
- 2.11 Error Management 63
- (installgetras) 67
- Audit Log 69
- 2.12.4 Audit Log Data Formats 75
- -mm-ddThh:mm:ss.s time-zone 76
- BasicLog 76
- Explanation 77
- 2.14 Cluster Support 80
- 3.1 HDLM System Requirements 82
- If an FC-SAN is used: 95
- If an IP-SAN is used: 95
- Enterprise Linux 5 131
- HDLM Version and 133
- HDLM Version and Service 134
- DLMgetras) 139
- /tmp 570 KB 148
- 3.3 HDLM Installation Types 155
- /var/tmp/ 156
- 3.5.2 Notes on Linux 158
- 3.6 Installing HDLM 163
- # vgdisplay -v 165
- Vo l u m e ) 166
- consists of /dev/sde 166
- /media/cdrom 169
- /media/cdrecorder 169
- # mdadm -S --scan 175
- VOL01234 178
- # volname /dev/cdrom 178
- /media/cdrom: 184
- /dev/vg01/lvol1 and the 189
- /mnt/lvol1: 189
- Environment 199
- : 201
- Device Is Used as a Boot Disk 212
- /etc/grub.conf 213
- /boot/grub/menu.lst 213
- /etc/lilo.conf 213
- /etc/elilo.conf 213
- Device as a Boot Disk 221
- # vgscan 232
- /etc/lvm/lvm.conf file 236
- Edit the shaded portion 238
- HDLM Device 250
- 3.8 Settings for LUKS 253
- 3.8.1 Notes on Using LUKS 253
- 3.9 Settings for md Devices 256
- 3.9.2 Creating an md Device 257
- /dev/md0: 261
- 3.10 Settings for LVM2 270
- 3.10.1 Notes on Using LVM2 270
- and /dev/ 275
- as physical volumes: 275
- 8. Execute the VG scan 280
- 3.11 Settings for Xen 282
- 3.12 Settings for KVM 284
- 3.13 Settings for Heartbeat 286
- 3.14 Settings for Oracle RAC 287
- DISKTIMEOUT 288
- 3.15 Settings for the RHCM 290
- 3.15.1 Notes on Using RHCM 290
- Enterprise Linux 6 291
- 3.16 Settings for VCS 292
- 3.18 Setting Up HDLM 295
- -lbtype option: 296
- /var/opt/ 305
- LINUX Enterprise Server 306
- Software Is Not Used) 308
- 3.21.1 Mounting a File System 308
- 3.21.2 Creating a File System 308
- /etc/fstab file. In this 310
- Already Set 311
- HDLM device 313
- /etc/fstab file 315
- 3.23.11 Uninstalling HDLM 335
- (HNTRLib2) 350
- 4. HDLM Operation 353
- 4.1 Notes on Using HDLM 354
- 4.1.1 Notes Common to OSs 354
- Oracle Enterprise Linux 4 356
- 4.3.1 Notes on Using Commands 365
- 4.3.4 Viewing LU Information 367
- SCSI Device, and LDEV 368
- 4.3.9 Updating the License 372
- 4.5 HDLM Resident Processes 379
- 4.6.1 Replacing HBAs 380
- 4.6.2 Replacing a Fiber Cable 388
- -), execute 395
- Table 4-4: Add SCSI Devices 405
- 5. Troubleshooting 411
- HDLM Error Information 412
- 5.3.1 Examining the Messages 416
- 5.3.2 Obtain Path Information 416
- 5.4.1 Examining the Messages 418
- 6. Command Reference 421
- ") 423
- 6.2.1 Format 424
- 6.2.2 Parameters 424
- 6.3.1 Format 426
- 6.3.2 Parameter 426
- Example 3 427
- operation 427
- 6.4.1 Format 428
- 6.4.2 Parameters 428
- 6.5.1 Format 433
- 6.5.2 Parameters 433
- 6.6.1 Format 438
- 6.6.2 Parameters 438
- 0, and then 447
- 6.7.1 Format 455
- -sys) to specify the program 457
- Items of Path information 469
- -path parameter or the 469
- -path -item parameter 469
- -path -c parameter 469
- -item parameter 473
- All items are displayed all 477
- SLPR slpr 479
- Table 6-17: LU Information 480
- -lu -item parameter 483
- -lu -c -item parameter 483
- 7. Utility Reference 487
- 7.1 Overview of the Utilities 488
- 7.2.1 Format 490
- 7.2.2 Parameters 490
- *.rules files in that 503
- 7.3.1 Format 513
- 7.3.2 Parameters 513
- /dev/sddlmaa 514
- (dlmcfgmgr -r) 515
- 7.4.1 Format 524
- 7.4.2 Parameters 524
- -b boot-directory 526
- 7.5.1 Format 527
- 7.5.2 Parameters 527
- 7.6.1 Format 530
- 7.6.2 Parameters 530
- /etc/modprobe.conf 532
- 7.7.1 Format 534
- 7.8.1 Format 535
- Information 536
- 7.9.1 Format 536
- 7.9.2 Parameters 536
- utility was executed 537
- 7.10.1 Format 538
- 7.10.2 Parameters 538
- 7.11.1 Format 545
- 7.11.2 Parameters 545
- 7.11.3 Log file 545
- 8. Messages 547
- • HDLM alert driver 549
- • HDLM management target 549
- 8.2 KAPL01001 to KAPL02000 550
- KAPL01005-W 551
- KAPL01006-W 551
- KAPL01007-W 551
- KAPL01008-W 551
- KAPL01009-W 552
- KAPL01012-E 552
- KAPL01013-E 552
- KAPL01014-W 553
- KAPL01015-W 553
- KAPL01016-W 553
- KAPL01018-W 553
- KAPL01019-W 554
- KAPL01021-E 554
- KAPL01023-W 555
- KAPL01024-W 555
- KAPL01036-E 555
- KAPL01039-W 555
- KAPL01040-W 556
- KAPL01041-E 556
- KAPL01044-W 556
- KAPL01045-W 556
- KAPL01048-W 557
- KAPL01049-I 557
- KAPL01050-I 557
- KAPL01051-I 558
- KAPL01052-I 558
- KAPL01053-I 558
- KAPL01054-W 559
- KAPL01055-I 559
- KAPL01056-I 559
- KAPL01057-I 560
- KAPL01058-W 560
- KAPL01059-W 560
- KAPL01060-I 561
- KAPL01061-I 561
- KAPL01063-I 561
- KAPL01068-I 562
- KAPL01069-W 562
- KAPL01070-E 562
- KAPL01071-I 562
- KAPL01079-W 564
- KAPL01080-W 564
- KAPL01081-E 564
- KAPL01082-E 564
- KAPL01083-I 565
- KAPL01084-W 565
- KAPL01088-W 565
- KAPL01089-E 566
- KAPL01095-E 566
- KAPL01096-E 566
- KAPL01097-W 566
- KAPL01100-I 567
- KAPL01107-I 567
- KAPL01111-E 567
- KAPL01112-E 567
- KAPL01113-E 568
- KAPL01114-W 568
- KAPL01115-W 568
- KAPL01116-W 569
- KAPL01117-W 569
- KAPL01118-W 569
- KAPL01119-W 569
- KAPL01120-W 570
- KAPL01122-W 570
- KAPL01123-W 570
- KAPL01124-W 570
- KAPL01125-E 571
- KAPL01126-E 571
- KAPL01127-E 571
- KAPL01128-W 571
- 8.3 KAPL03001 to KAPL04000 572
- KAPL03007-E 573
- KAPL03008-E 573
- KAPL03999-E 573
- 8.4 KAPL04001 to KAPL05000 575
- KAPL04009-E 576
- KAPL04010-E 576
- KAPL04011-E 576
- KAPL04012-E 577
- KAPL04013-E 577
- KAPL04014-E 577
- KAPL04019-E 577
- KAPL04021-I 578
- KAPL04022-W 578
- KAPL04023-E 578
- KAPL04024-C 579
- KAPL04025-C 579
- KAPL04026-I 579
- KAPL04027-I 579
- KAPL04047-W 582
- KAPL04048-W 582
- KAPL04049-W 582
- KAPL04050-E 582
- KAPL04051-E 583
- KAPL04052-E 583
- KAPL04053-W 583
- 8.5 KAPL05001 to KAPL06000 584
- KAPL05014-I 585
- KAPL05018-W 585
- KAPL05019-I 586
- KAPL05020-I 586
- KAPL05021-I 586
- KAPL05023-E 586
- DLMgetras 587
- KAPL05708-E 588
- KAPL05709-I 588
- KAPL05711-I 589
- KAPL05712-I 589
- KAPL05819-I 589
- 8.6 KAPL06001 to KAPL07000 591
- KAPL06010-E 592
- KAPL06013-E 592
- KAPL06014-E 593
- KAPL06100-E 593
- KAPL06101-E 593
- Reinstall an HDLM 594
- 8.7 KAPL07001 to KAPL08000 595
- 8.8 KAPL08001 to KAPL09000 596
- KAPL08023-I 597
- KAPL08026-E 597
- PathID = aa...aa 598
- 8.9 KAPL09001 to KAPL10000 599
- KAPL09013-E 600
- KAPL09019-E 600
- KAPL09020-E 600
- KAPL09021-E 600
- KAPL09023-E 601
- KAPL09024-E 601
- KAPL09026-I 601
- KAPL09028-E 601
- KAPL09035-E 602
- KAPL09036-E 602
- KAPL09037-E 602
- KAPL09038-E 602
- KAPL09039-E 603
- KAPL09040-E 603
- KAPL09043-I 603
- KAPL09044-I 603
- KAPL09045-E 604
- KAPL09046-E 604
- KAPL09047-E 604
- KAPL09049-W 604
- KAPL09050-E 605
- KAPL09051-E 605
- KAPL09076-I 605
- KAPL09077-I 605
- KAPL09097-E 609
- KAPL09098-E 609
- KAPL09113-E 609
- KAPL09114-I 609
- KAPL09115-W 610
- KAPL09116-W 610
- KAPL09121-E 610
- KAPL09135-E 611
- KAPL09142-E 611
- KAPL09143-E 611
- KAPL09146-E 611
- KAPL09147-E 612
- KAPL09160-E 612
- KAPL09163-E 612
- KAPL09177-I 613
- KAPL09191-W 613
- KAPL09199-E 613
- KAPL09210-I 614
- KAPL09211-I 614
- KAPL09212-E 614
- KAPL09213-W 614
- KAPL09215-E 615
- KAPL09216-E 615
- KAPL09217-E 616
- KAPL09218-E 616
- KAPL09219-E 617
- KAPL09220-W 617
- KAPL09221-W 618
- KAPL09227-W 618
- KAPL09228-W 618
- KAPL09229-W 619
- KAPL09230-W 619
- KAPL09231-W 619
- KAPL09232-W 620
- KAPL09233-W 620
- KAPL09234-W 620
- KAPL09238-W 621
- KAPL09239-I 621
- KAPL09240-I 621
- KAPL09244-E 621
- KAPL09501-E 623
- KAPL09505-E 623
- KAPL09509-E 623
- KAPL09510-E 624
- KAPL09511-E 624
- KAPL09601-E 624
- KAPL09602-E 624
- KAPL09603-E 625
- KAPL09604-E 625
- 8.10 KAPL10001 to KAPL11000 626
- KAPL10005-W 627
- KAPL10006-W 627
- KAPL10007-W 627
- KAPL10008-W 627
- KAPL10009-W 628
- KAPL10010-W 628
- KAPL10011-W 628
- KAPL10012-W 629
- KAPL10013-W 629
- KAPL10014-W 630
- KAPL10015-W 630
- KAPL10016-W 630
- KAPL10017-W 631
- KAPL10020-I 631
- KAPL10021-I 631
- KAPL10034-E 633
- KAPL10035-E 633
- KAPL10036-E 633
- KAPL10037-W 634
- KAPL10049-I 634
- KAPL10050-I 634
- KAPL10301-I 634
- KAPL10302-I 635
- KAPL10305-E 635
- KAPL10306-W 635
- KAPL10308-W 635
- KAPL10309-W 636
- KAPL10312-I 636
- KAPL10313-I 636
- KAPL10314-I 636
- KAPL10316-E 637
- KAPL10318-E 637
- KAPL10319-W 637
- KAPL10320-E 638
- KAPL10321-W 638
- KAPL10322-E 639
- KAPL10323-E 639
- KAPL10324-I 639
- KAPL10325-E 640
- KAPL10326-E 640
- KAPL10327-W 640
- KAPL10328-E 641
- KAPL10329-E 641
- KAPL10330-E 641
- KAPL10331-E 642
- KAPL10332-E 642
- KAPL10333-E 642
- KAPL10334-E 643
- KAPL10335-E 643
- KAPL10336-W 644
- KAPL10337-W 644
- KAPL10338-W 644
- KAPL10339-I 644
- KAPL10340-E 645
- KAPL10341-I 645
- KAPL10343-I 645
- KAPL10344-I 646
- KAPL10345-I 646
- KAPL10346-I 647
- KAPL10347-I 647
- KAPL10348-I 647
- KAPL10349-I 647
- KAPL10350-E 648
- KAPL10351-E 648
- KAPL10352-W 649
- KAPL10353-W 649
- KAPL10354-E 649
- KAPL10355-E 650
- KAPL10356-E 650
- KAPL10357-E 650
- KAPL10358-E 651
- KAPL10359-E 651
- KAPL10360-I 651
- KAPL10361-I 652
- KAPL10362-W 652
- KAPL10363-W 653
- KAPL10364-I 653
- KAPL10365-W 654
- KAPL10366-I 654
- KAPL10641-I 654
- KAPL10642-I 654
- KAPL10643-W 655
- KAPL10644-W 655
- KAPL10645-W 655
- KAPL10646-W 655
- KAPL10648-E 656
- KAPL10649-E 656
- KAPL10650-I 656
- KAPL10651-I 656
- KAPL10652-E 657
- KAPL10653-W 657
- KAPL10665-I 657
- KAPL10920-W 657
- KAPL10922-E 658
- KAPL10923-E 658
- KAPL10934-W 658
- KAPL10935-W 659
- KAPL10936-W 659
- KAPL10937-W 659
- KAPL10938-I 660
- KAPL10939-W 660
- KAPL10940-W 660
- KAPL10941-W 661
- KAPL10942-W 661
- KAPL10943-W 661
- KAPL10944-I 662
- KAPL10948-W 662
- 8.11 KAPL11001 to KAPL12000 664
- KAPL11903-I 665
- KAPL11904-E 665
- KAPL11905-E 666
- KAPL11906-I 666
- XML reception - aa...aa 667
- XML transmission - aa...aa 667
- 8.12 KAPL12001 to KAPL13000 668
- KAPL12305-I 669
- KAPL12325-I 673
- KAPL12326-E 673
- KAPL12327-E 675
- KAPL12328-I 675
- KAPL12329-I 675
- KAPL12330-I 675
- KAPL12331-E 676
- KAPL12332-E 676
- KAPL12333-E 677
- KAPL12334-E 677
- KAPL12335-E 677
- KAPL12559-E 681
- KAPL12560-E 681
- KAPL12561-E 681
- KAPL12562-E 681
- KAPL12563-E 682
- KAPL12564-E 682
- KAPL12565-E 682
- KAPL12566-E 682
- KAPL12567-E 683
- KAPL12568-E 683
- KAPL12801-E 683
- KAPL12802-E 684
- KAPL12851-E 684
- KAPL12852-E 684
- KAPL12901-E 684
- KAPL12902-E 685
- 8.13 KAPL13001 to KAPL14000 686
- KAPL13401-E 687
- KAPL13402-E 687
- KAPL13403-E 687
- KAPL13404-W 687
- KAPL13405-E 688
- KAPL13406-E 688
- KAPL13407-I 688
- KAPL13408-E 688
- KAPL13409-I 689
- KAPL13410-I 689
- KAPL13411-W 689
- KAPL13412-E 689
- KAPL13413-W 690
- KAPL13414-E 690
- KAPL13415-E 690
- KAPL13416-E 690
- KAPL13519-E 695
- KAPL13520-E 695
- KAPL13521-E 695
- KAPL13522-E 695
- KAPL13601-W 696
- KAPL13602-W 696
- KAPL13603-W 696
- KAPL13604-W 696
- KAPL13909-W 699
- KAPL13910-W 699
- KAPL13911-E 699
- KAPL13912-E 699
- /sbin/modprobe: 700
- /bin/mknod: 700
- 8.14 KAPL15001 to KAPL16000 701
- KAPL15404-W 707
- Component 708
- DLMgetras utility, see 709
- Appendixes 715
- A.2 Notes on Linux Commands 716
- A.4 Notes on the mkfs Command 718
- A.6 Notes on the sar Command 719
- Online(E) 729
- /etc/opt/ 729
- DynamicLinkManager 729
- Versions Earlier Than 5.6.3 730
- Versions Earlier Than 5.4 730
- D. Glossary 731
- /dev directory 735
- AutoPATH_ID 736
- Offline(E) status 736
- , 8, 9, 10, 708 740
- , 396, 466 740
- , 152, 713 746
- , 152, 258 746
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