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Group Administration Volume replication
12–4
Replication configuration options
A group can have multiple replication partners. However, you can replicate a volume only to one replication
partner at a time. Choose the replication configuration that is right for your environment.
Replication to one partner
One replication partner replicates volumes to another partner. For example, in Figure 12-1, GroupA replicates
Volume1 and Volume2 to GroupB. GroupA is the primary g
roup, and GroupB is the secondary group.
Figure 12-1: Replication to One Partner
Replication to multiple partners
One replication partner replicates different volumes to different partners. For example, in Figure 12-2, GroupA
replicates Volume1 to GroupC, and GroupA replicates Volume2 to GroupB. GroupA is the primary group, and
GroupB and Gro
upC are secondary groups.
Figure 12-2: Replication to Multiple Partners
- PS Series Storage Arrays 1
- Table of Contents 3
- Part III: Troubleshooting 10
- Audience 13
- Organization 13
- Conventions 14
- PS Series Array Software 15
- Host Software for Windows 15
- Host Software for VMware 15
- Related Documentation 16
- Contacting Dell 17
- Online Services 17
- About PS Series groups 19
- Modular hardware 20
- Seamless online scalability 21
- Interoperability 21
- Easy setup and management 21
- Automatic SAN operation 22
- Dynamic load balancing 22
- Host-based applications 24
- Part I: Managing Groups 25
- 2 Common group tasks 27
- Setting the group time 27
- About the Group Manager GUI 29
- Navigating the GUI 30
- Keyboard shortcuts 31
- GUI icons 32
- Accessing the alarms panel 32
- Customizing the GUI 33
- Using the CLI 34
- 4 Group security 37
- About group security 37
- Accessing the GUI or CLI 37
- About administration accounts 38
- Management 50
- 5 Group configuration 55
- Displaying the Group summary 55
- Group configuration tabs 57
- Expanding group capacity 58
- Shutting down a group 60
- 6 Group members 61
- Displaying Group members 61
- Displaying member details 61
- Enclosure tab 62
- Controllers tab 63
- Disks tab 63
- Network tab 63
- Connections tab 64
- Service tab 64
- Member RAID policies 64
- RAID level characteristics 65
- Converting a RAID policy 67
- Modify IP settings 69
- About write cache operations 71
- About member firmware 72
- Updating member firmware 73
- Shutting down a member 74
- Restarting a member 75
- 7 Storage pools 79
- About storage pools 79
- Configuring a storage pool 79
- Creating a storage pool 80
- Displaying storage pools 81
- Moving a member to a pool 82
- Moving a volume to a pool 83
- Merging storage pools 83
- Deleting a storage pool 84
- 8 iSCSI target security 85
- Creating a local CHAP account 86
- Deleting a local CHAP account 87
- About iSNS servers 88
- Modifying an iSNS server 89
- Multi-host access to targets 90
- 9 Basic volume operations 93
- About volumes 93
- About volume types 93
- About volume space allocation 94
- About volume data protection 95
- Volume attributes 95
- Creating standard volumes 97
- Displaying volumes 98
- Displaying volume details 99
- Displaying volume snapshots 100
- Displaying volume replication 101
- Displaying volume collections 101
- Displaying volume schedules 101
- Displaying volume connections 102
- About cloning volumes 103
- Modifying a volume alias 105
- Modifying volume permission 106
- Deleting a volume 107
- About thin provisioning 109
- About reported volume size 113
- Creating a thin clone 117
- About volume collections 118
- Status tab 119
- Snapshots tab 119
- Replicas tab 120
- Schedules tab 120
- Modifying a volume collection 120
- Scheduling volume operations 121
- Creating a schedule 122
- Modifying a schedule 123
- Deleting a schedule 123
- 11 Snapshot management 127
- About snapshots 127
- About snapshot schedules 129
- Creating snapshots 129
- About snapshot collections 131
- Modifying snapshot properties 136
- Modifying snapshot permission 137
- Deleting snapshots 138
- 12 Volume replication 139
- About replication 139
- About replicas 139
- How replication works 140
- Manual Transfer Utility 141
- Replication to one partner 142
- Centralized replication 143
- About replication space 145
- 5% + change rate 148
- Replica volume reserve 150
- Replica reserve usage 150
- About replication partners 154
- Attribute Description 155
- Modifying partner passwords 158
- Template replicas tab 161
- Thin clone replica sets tab 161
- Disabling replication 165
- Creating a replica 166
- Cloning an inbound replica 169
- 13 Data recovery 173
- About data recovery 173
- Data recovery procedures 174
- Recovery volume restrictions 181
- Where to go next 186
- Handling a failed operation 187
- Promote to volume 189
- 14 Group event logging 193
- About event messages 193
- Event priorities 194
- About hardware alarms 194
- Event notification methods 194
- Configuring E-Mail home 196
- About SNMP traps 198
- 15 Group monitoring 201
- Monitoring events 202
- Monitoring iSCSI connections 203
- Monitoring snapshot schedules 204
- Monitoring replication 205
- Monitoring a specific partner 210
- Monitoring alarms 210
- Displaying critical alarms 211
- Displaying warning alarms 212
- Monitoring actions 213
- Monitoring group operations 214
- Monitoring group members 215
- Monitoring a specific member 216
- Displaying member space 217
- Monitoring power supplies 218
- Monitoring cooling and fans 218
- Monitoring channel cards 219
- Monitoring control modules 220
- Control module status 221
- Cache battery status 221
- Monitoring disk drives 222
- Monitoring network hardware 223
- Using the Performance Monitor 227
- Changing the display colors 231
- Additional monitoring tools 232
- Contacting customer support 233
- Appendix A Legal notices 235
- Glossary 239
- Group Administration Glossary 240
- Glossary–2 240
- Glossary–3 241
- Glossary–4 242
- Glossary–5 243
- Glossary–6 244
- Glossary–7 245
- Glossary–8 246
- Glossary–9 247
- Glossary–10 248
- Index-1 249
- Group Administration Index 250
- Index- 2 250
- Index-3 251
- Index- 4 252
- Index-5 253
- Index- 6 254
- Index-7 255
- Index- 8 256
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