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Chapter 2 About Universal Replicator Operations 2-5
Hitachi Universal Replicator for IBM /OS User’s Guide
L
Co
py
direction
Remote copy
connection
URz volume pair
Host processor
at the primary site
Primar
y
subs
y
stem
(
LDKC
)
Error Reporting
Communications
Host processor
at the secondary site
Stora
g
e s
y
stem
(
LDKC
)
Internal LAN (TCP/IP)
Master journal group
SVP
SVP
Restore journal group
MCU
RCU target port
Storage Navigator computer
Storage Navigator computer
Initiator port
Primary
data
volume
CHT
CHT
RCU tar
g
et
p
ort
Initiator port
RCU
Master
journal
volume
Secondar
y
data
volume
Restore
journal
volume
(
MVS
)
Time stam
p
in
g
function (MVS) Time stamping function
Dis
k
subs
y
stemStora
g
e s
y
stem
Figure 2-2 URz components
Figure 2-3 shows the plural secondary storage systems connection
configuration of URz. By connecting one primary storage system with more
than one secondary storage system, you can create a volume pair that has a
one-to-one relationship for each journal group.
- 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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