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Chapter 12. High availability and redundancy 307
12.3 Active/Passive High Availability: Configuration
planning
You need to plan the setup of SDMC High Availability, and there are several
considerations and issues to be aware of in setting up and administrating this
environment:
Both SDMCs must be at the same code level prior to the High Availability
configuration.
SSH must not be blocked by the firewall during the initial High Availability
configuration.
Data on the secondary node is lost during the High Availability configuration.
Data on the primary node, where the High Availability configuration is
triggered, is retained and mirrored to the secondary node.
Both SDMCs must be turned on at all times to receive the benefits of high
availability.
Only the active SDMC console can be accessed after High Availability is
configured.
Note: Prior to the High Availability configuration, backups of both SDMC
images should be taken so that the SDMCs can revert back to their original
non-High Availability states should there be problems during the High
Availability setup or if you want to go back to a non-High Availability setup.
- IBM Systems Director 1
- Management Console 1
- Introduction and Overview 3
- April 2011 3
- Figures xi 13
- Figures xiii 15
- Examples 19
- Trademarks 22
- The team who wrote this book 24
- Comments welcome 25
- Overview 27
- Private Mgmt Network I 28
- Private Mgmt Network II 28
- Console 29
- Service Management 30
- End-to-End 30
- Management 30
- Chapter 1. Overview 5 31
- Chapter 1. Overview 7 33
- 1.5 Terminology 36
- 1.6 Functional differences 36
- 1.6.2 Users and roles 37
- 1.6.3 Additional functions 38
- 1.6.5 Redundancy model 38
- 1.6.6 Backup and restore 38
- 1.6.7 SDMC considerations 39
- Installation 41
- 2.1 Prerequisites 42
- Chapter 2. Installation 17 43
- 43
- System management 101
- 5.1 System discovery 102
- Verify Connection page 104
- Request Access page 105
- Configure Access page 106
- Revoke Access page 106
- 5.1.4 Auto discovery 108
- 5.1.5 IP address rules 109
- 5.3.1 Edit Host page 112
- 5.3.2 Operations page 113
- 5.3.4 Virtual Resources page 114
- 5.3.5 Hardware page 114
- 5.4 Hierarchical management 117
- 5.5 Capacity on Demand 120
- 5.5.2 Capacity on Demand 121
- 5.5.3 Advanced Functions 122
- 5.5.4 CoD operations 123
- Power Unit management 125
- 6.1 Power Unit managment 126
- 6.1.1 Edit Power Unit page 127
- 6.1.3 Change Password page 128
- 6.1.4 Initialize Frame page 129
- 6.1.7 Rebuild page 130
- Firmware updates 133
- 7.1 Update Manager 134
- 7.1.1 Readiness Check page 136
- 7.1.2 Installing updates 138
- Getting updates 140
- Updating target systems 145
- Figure 7-19 Accept 155
- Virtual Server operation 157
- 8.1 Virtual Server creation 158
- Source/Console pane 162
- Command-line usage 177
- 8.3 Virtual Server shutdown 183
- Virtual Server (Figure 8-26) 186
- Figure 8-36 196
- (Figure 8-43) 203
- 8.4.1 Command-line usage 208
- 8.4.2 Current Configuration 208
- (Figure 8-48) 209
- 8.4.4 Server Profiles 214
- 8.5 Suspend and resume 218
- (Figure 8-58) 219
- 8.6 Mobility 221
- Figure 8-61 Click Validate 222
- User roles 225
- HMC tasks 225
- User groups 228
- Creating a role 232
- Listing roles 236
- Deleting a role 236
- Creating a group 238
- (Figure 9-8) 239
- Groups page (Figure 9-13) 244
- Roles page (Figure 9-15) 246
- 9.1.5 User management 249
- Local authentication 250
- Kerberos 258
- Modifying user properties 263
- 9.2 Network configuration 266
- LAN adapter 269
- Figure 9-31 DHCP server 270
- IP address 271
- Firewall 272
- Host and gateway 274
- Figure 9-34 DNS menu 275
- Network reconfiguration 276
- Viewing network settings 278
- Changing network settings 278
- 9.3 Backup and restore 279
- KVM backup procedure 288
- Restoring on KVM 289
- 9.4 Problem determination 290
- Trace logs in GUI 292
- 9.4.3 Audit logs 295
- 9.4.4 Using pedbg 295
- 9.4.5 Using pesh 296
- 9.5 SDMC appliance update 297
- Command-line interface 301
- Schedule operations 315
- Virtual Servers 316
- 11.1.1 Schedule tab 318
- 11.1.2 Notification 319
- 11.1.3 Options 319
- 11.1.4 Creating the job 320
- Figure 11-7 Log of the job 322
- 11.3 Automation Manager 323
- High availability and 325
- Synchronization 329
- Post-Failover 329
- 12.3.1 Network requirements 334
- Replication IP address 335
- Network status IP address 335
- 12.3.2 DHCP considerations 337
- Shared DHCP configuration 338
- Figure 12-8 Welcome page 340
- Click Next 345
- Figure 12-14 Summary page 346
- Additional command-line tools 347
- Advanced System 351
- Management Interface 351
- Figure 13-3 ASMI login 354
- 13.3 Using ASMI 355
- Service and support 361
- 14.1 Introduction 362
- 14.2 Setup wizard 363
- Perform the following steps: 364
- Figure 14-5 Connection page 367
- 14.3 Call Home 369
- 14.4.5 User actions 374
- 14.5.1 Support Files view 377
- Tasks (Figure 14-13) 378
- (Figure 14-14) 379
- Deleting support files 384
- Properties of support files 386
- Dump settings 387
- 14.9 Guided Repair 391
- 14.9.1 Differences from HMC 392
- Command-line reference 393
- Event commands 397
- Scheduler commands 399
- SSM commands 401
- High availability commands 406
- User commands 409
- Other commands 411
- IBM Systems Director base 415
- Base functions 416
- Abbreviations and acronyms 421
- Related publications 423
- Help from IBM 424
- Numerics 425
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