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- Table of contents
- TROUBLESHOOTING
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B
Differences Between HDLM Version 5.9
or Later and Version 5.8.1 or Earlier
HDLM version 5.9 or later supports MPIO used by AIX 5L V5.2 or later, which
has improved compatibility with the OS. The items explained in the following
subsections represent the changes from HDLM version 5.8.1 or earlier.
□
Add-in HDLM Driver Module
□
Simplifying the HDLM Environment Configuration and Operation
Procedures by Changes to the Logical Device Files
□
Changing the HDLM Environment Configuration and Operation Procedures
by Changes to the Logical Device Files
□
Migrating Reservation Control Settings
□
Support for a Boot Disk Environment
□
About Settings when Upgrading the OS
□
Changing a Virtual I/O Server's Method of Recognizing Virtual SCSI Disks
Differences Between HDLM Version 5.9 or Later and Version 5.8.1 or Earlier
B-1
Hitachi Dynamic Link Manager User Guide for AIX®
- Dynamic Link Manager Software 1
- Contents 3
- Intended audience 12
- Product version 12
- Release notes 12
- Document revision level 12
- Document organization 12
- Referenced documents 13
- Document conventions 14
- Getting help 15
- Comments 15
- Overview of HDLM 17
- What is HDLM? 18
- Features 18
- HDLM Functions 21
- Cluster support 22
- Devices Managed by HDLM 23
- System Configuration 23
- Components Description 24
- LU Configuration 25
- Program Configuration 26
- Program name Functions 27
- Load Balancing Algorithms 32
- Automatic 34
- path switching 34
- Figure 2-8 Path switching 35
- Automatic failbacks 38
- Manual path switching 39
- Path status transition 40
- Status transitions of a path 41
- Checking intermittent errors 43
- Monitoring 46
- Function 48
- Error management 49
- Types of Collected Logs 50
- Filtering 52
- of error information 52
- Collecting 53
- Collecting Audit Log Data 54
- Audit Log Data Formats 59
- Explanation 60
- HDLM System Requirements 65
- AIX V7.1 (Virtual I/O Server) 66
- (where xx is a number) 66
- Storage Systems 67
- Configurations 68
- OS Related Programs 69
- Memory Requirements 71
- Disk Capacity Requirements 72
- Types of HDLM Installation 73
- Notes on Installing HDLM 74
- Notes on a License Key 76
- Notes on Trace Files 77
- Notes on Storage Systems 77
- Notes on the Cluster 78
- Installing HDLM 79
- Environments 80
- Set Up the Hardware 84
- Switch the Kernel Mode 85
- Performing a New Installation 86
- of HDLM 86
- # lsdev -Cc disk 87
- . Execute the chdev 89
- . Execute the dlnkmgr 89
- # umount /cdrom 93
- # rm -r /cdrom 93
- # shutdown -Fr 93
- Stop Applications 97
- File Description 98
- . Execute the dlmrmdev 100
- Creating an HDLM Environment 102
- (in a Boot Disk Environment) 119
- . Insert the DVD-ROM 124
- . Unmount the DVD-ROM 126
- . Mount the DVD-ROM 128
- Setting up HDLM 132
- Checking the Current Settings 133
- Setting Up the HDLM Functions 133
- Setting Up Load Balancing 134
- Setting the Trace Level 138
- Setting the Trace File Size 139
- Value (severity) Explanation 140
- Value Explanation 140
- Checking the Updated Settings 141
- Setting up Integrated Traces 142
- Settings 143
- Interval 146
- Settings 148
- About the Reservation Policy 149
- Settings for Using PowerHA 149
- Storage System Settings 150
- Settings for Using GPFS 152
- Settings for Using VCS 155
- Removing HDLM 156
- HDLM Operation 167
- Notes on Using HDLM 168
- Storage System 169
- Notes on Shutting Down a Host 169
- Notes on Errors in a Host 169
- Viewed From the Same Server 170
- Environment 170
- Notes on Replicating a System 171
- Notes on Using Commands 171
- Viewing Path Information 171
- Changing the Status of Paths 172
- Viewing LU Information 174
- Path IDs, and LDEVs 174
- Viewing License Information 177
- Updating the License 178
- Starting the 180
- HDLM Manager 180
- Stopping the HDLM Manager 180
- HDLM Resident Processes 181
- Changing hdisk attributes 183
- Changing a Path 187
- . Delete the path 188
- Replacing 189
- # cfgmgr -l fcsn 192
- Replacing a Fiber Cable 194
- Troubleshooting 199
- Checking 200
- What To Do for a Path Error 201
- Examining 204
- the Messages 204
- Obtaining Program Information 204
- What To Do for Other Errors 205
- Command Reference 207
- Command format 208
- Parameters 209
- Parameter 210
- Example 3 211
- Reference 217
- To Place Paths Online 217
- Value Description 225
- Table 6-4 Trace Level Values 226
- Table 6-6 License Key Types 233
- To Display Path Information 238
- To display path information 238
- [vg] [dpc] 239
- [[slpr] [vg] 239
- Examples 245
- Displayed path information 252
- number (the xx 256
- To Display LU Information 258
- To display LU information 258
- Example 2 261
- Displayed LU information 263
- Item Description 270
- Utility Reference 273
- Overview of the Utilities 274
- Time of the Utilities 275
- Output directory 280
- Files Explanation 280
- Supplemental Information: 284
- Information 287
- Environment ODM 292
- . Execute the dlmpr 296
- [ODM_SETTINGS] section 302
- Log file 309
- Messages 311
- Format Meaning 313
- Terms Meaning 313
- KAPL01001 to KAPL02000 314
- Message Text Explanation 315
- KAPL03001 to KAPL04000 338
- KAPL04001 to KAPL05000 341
- KAPL05001 to KAPL06000 350
- KAPL06001 to KAPL07000 354
- KAPL07001 to KAPL08000 357
- KAPL08001 to KAPL09000 358
- KAPL09001 to KAPL10000 361
- KAPL10001 to KAPL11000 387
- . Check whether you 389
- . Check whether the 389
- . Check that the disk 389
- KAPL11001 to KAPL12000 412
- KAPL13001 to KAPL14000 416
- KAPL15001 to KAPL16000 423
- Component 425
- Message ID Explanation 426
- Versions of HDLM 431
- Add-in HDLM Driver Module 434
- Commands of the utilities for 435
- Corresponding AIX commands 435
- 0: Ignoring the reservation 437
- 2: Persistent reservation 437
- PR_exclusive 437
- Virtual SCSI Disks 438
- Acronyms and abbreviations 439
- Acronyms-2 440
- Acronyms-3 441
- Acronyms-4 442
- Acronyms-5 443
- Acronyms-6 444
- Glossary 445
- Glossary-2 446
- Glossary-3 447
- Glossary-4 448
- Glossary-5 449
- Glossary-6 450
- Glossary-7 451
- Glossary-8 452
- MK-92DLM111-21 460
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