Hitachi MP-96RD625-01 Manual de usuario Pagina 289
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Chapter 10 Usage Scenarios 10-17
Hitachi Universal Replicator for IBM /OS User’s Guide
Performing Failover and Failback for Host Maintenance at
the Primary Site
This section describes and provides instructions for performing failover and
failback so that host maintenance can be performed at the primary site. The
following procedures can only be performed by using Business Continuity
Manager (BCM) or Command Control Interface (CCI). This section provides
instructions for using BCM.
Normal Operations
Figure 10-5 shows normal operations in a 3DC multi-target configuration with
a delta resync pair.
Figure 10-5 Normal Operations for 3DC Delta Resync
Performing Failover
To perform failover at the primary site:
- z/OS® 1
- User's Guide 1
- Contents 5
- Preface 11
- Intended Audience 12
- Product Version 12
- Document Revision Level 12
- Changes in this Revision 12
- Document Organization 13
- Referenced Documents 13
- Document Conventions 14
- Getting Help 15
- Comments 16
- IBM z/OS 17
- Hitachi Universal Replicator 18
- Features 19
- Benefits 20
- Business Solutions 21
- Functionality Overview 24
- Journal Obtain 25
- Components 26
- USP V Storage Systems 29
- Universal Replicator for z/OS 29
- Software 29
- Logical DKC (LDKC) 30
- Remote Copy Connections 31
- Data Volume Pair 32
- Journal Volume 33
- Journal Group 35
- Up to 16 37
- Host I/O Time-Stamp 39
- Remote Copy Operations 40
- Initial Copy Operations 41
- Update Copy Operation 42
- Journal Group Operations 42
- Difference Management 45
- Journal Processing 46
- Types of Journal 47
- URz Delta Resync Operation 50
- As shown in 51
- Pair Status 55
- • URz Pair Status 56
- Suspend Types 58
- Table 2-5 Suspend Types 59
- Suspension Condition 60
- Command Device 64
- Operations 67
- System Requirements 68
- Disk Track Format 70
- Volume Types 71
- • The number of cylinders: 74
- Duplicate Volumes 78
- Installing the Hardware 79
- *1 Fabric OFF 81
- Enabling the URz Option(s) 82
- System for Remote Copy 83
- Secondary Storage Systems 88
- Virtual LVI 91
- Cache Residency Manager 91
- ShadowImage for z/OS 91
- ShadowImage for z/OS 98
- Basic Behavior 101
- Hardware Configuration 103
- • Primary site 103
- • Intermediate site 103
- • Remote site 103
- Setup Procedure 103
- • Secondary site for URz 106
- Primary Site Failures 111
- Primary Site) 115
- Secondary Site 117
- Synchronous Secondary Site 118
- Volumes 121
- Configuration 122
- Arranging Journal Volumes 123
- Capacity) 124
- Storage Systems 125
- Connected 126
- System Option Mode 127
- TagmaStore USP/NSC 127
- Consistency Groups 129
- DKCs are USP V 131
- Journal Operation Window 136
- • Display all JNL groups: 137
- – Restoring mirrors 138
- Pair Operation Window 141
- /NSC, “00” is 144
- DKC Operation Window 147
- Operation Window 149
- – path group ID 149
- Usage Monitor Window 154
- History Window 155
- Figure 4-9 History Window 156
- Optional Operation Window 161
- EXCTG Operation Window 163
- Add JNLG to EXCTG 166
- Consistency Group 168
- A master journal group 169
- A restore journal group 169
- Logical Paths 171
- Systems 173
- – the path group ID 180
- Figure 5-3 Add DKC Window 182
- Adding Logical Paths 185
- Figure 5-5 Add Path Window 186
- Deleting Logical Paths 190
- Managing SIMs 191
- • CU: Displays CU numbers 192
- Relay Devices 193
- Same Time 196
- Configuring Journal Groups 199
- Group Uses Two Mirror IDs) 207
- – Inflow Control is No 210
- Mode Description 216
- Notes: 218
- Deleting a Journal Group 219
- Performing Pair Operations 235
- Figure 8-2 Add Pair Window 241
- /NSC, “00” is displayed as 247
- (13) (14) 250
- Note: If you select pairs 255
- Note: If you select 261
- Recovering a Pinned Track 262
- Usage Monitor Operations 265
- Usage Scenarios 273
- Disaster Recovery Procedure 280
- Performed) 283
- Normal Operations 289
- Performing Failover 289
- Performing Failback 291
- – YKQUERY 293
- – YKRESYNC DELTAJNL 293
- – YKEWAIT GOTO(DUPLEX) 293
- Troubleshooting 295
- General Troubleshooting 296
- Troubleshooting 5 299
- 6 Troubleshooting 300
- Software Error Codes 301
- 8 Troubleshooting 302
- 10 Troubleshooting 304
- Troubleshooting 11 305
- 12 Troubleshooting 306
- Acronyms and Abbreviations 307
- Index-2 Index 310
- Index Index-3 311
- Index-4 Index 312
- MP-96RD625-01 314
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