Hp 3PAR Operating System Software Manuale Utente Pagina 54
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- Indice
- RISOLUZIONE PROBLEMI
- SEGNALIBRI
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Selecting an Initial Replication Method for M-to-N Remote Copy
Select the method to use to start replicating the data in the primary volume groups:
• Direct replication
“Selecting an Initial Replication Method for M-to-N
Remote Copy” (page 54)
Copy data directly from the virtual volumes in the
primary volume group to the virtual volumes in the
secondary volume group.
• Through tape. Using tape for the initial backup can be faster if you are copying very large
volumes.
“Using Tape for Initial Synchronization and
Backup” (page 151)
1. Copy data in the virtual volumes in the primary
volume group to tape first.
2. To fully synchronize the primary and backup systems,
copy the data to the virtual volumes in the secondary
volume group.
NOTE: The admitrcopyvv command provides a -nosync option that specifies that the volume
should skip the initial synchronization. This is for the admission of volumes that have been pre-synced
with the target volume. By default, a full synchronization is performed on added volumes unless
the -nosync option is specified. For more information, see the HP 3PAR Command Line Interface
Reference, which is available on the HP Support Center (HP SC) website:
HP 3PAR Operating System Software
Starting Initial Replication for M-to-N Remote Copy
Follow these steps to copy data directly from the virtual volumes in the primary volume group to
the virtual volumes in the secondary volume group:
1. On the primary storage system (System1), start replication for one of the primary volume
groups by issuing the following command:
# startrcopygroup <group_name>
where <group_name> represents the name of the primary volume group (Group1).
The startrcopygroup command, when run on a group for the first time:
• Is mirrored from the primary system (System1) to the backup system (System2)
• Begins copying the existing data from the primary volume group (Group1) to its associated
secondary volume group (Group1.r112)
2. To verify that the groups are synchronizing, issue the showrcopy command on the primary
system (System1):
# showrcopy
3. Wait until the SyncStatus column in the Group Information area displays Synced.
.
.
.
Group Information
54 Setting Up M-to-N Remote Copy
- HP 3PAR OS 3.1.3 1
- Contents 3
- 4 Contents 4
- Contents 5 5
- 6 Contents 6
- Contents 7 7
- 8 Contents 8
- Contents 9 9
- Servers” (page 39) 12
- Requirements 13
- Requirements 15 15
- 1-to-1 Configuration 16
- N-to-1 Configuration 17
- 1-to-N Configuration 18
- M-to-N Configuration 19
- Network Connection Types 23
- Fibre Channel Networks 24
- 4 Gathering Setup Information 25
- 5 Setting the Transport Layer 26
- RCIP Initial Remote-Copy Pair 27
- Configuring Ports for RCIP 30
- Setting the Gateway 31
- Increasing MTU 33
- Configuring Ports for RCFC 35
- # controlport offline 2:3:1 36
- 1-to-1 Remote Copy 40
- N-to-1 Remote Copy 40
- 1-to-N Remote Copy 41
- ◦ HP 3PAR T-Class Storage 44
- ◦ HP 3PAR F-Class Storage 44
- M-to-N Remote-Copy Examples 45
- # showrctransport -rcfc 48
- # startrcopy 48
- 7 Setting Up SLD Remote Copy 56
- ◦ IP—Specifies an IP link 58
- 60 Setting Up SLD Remote Copy 60
- For RCFC 61
- For RCIP 61
- SLD Remote-Copy Example 62
- # showrcopy groups 69
- Configuration 71
- 72 Setting Up SLD Remote Copy 72
- 74 Setting Up SLD Remote Copy 74
- • For RCIP remote-copy pairs: 77
- • For RCFC remote-copy pairs: 78
- # showrcopy 80
- 9 Bidirectional Configuration 86
- Part III Managing Remote Copy 92
- # stoprcopy -stopgroups 94
- Additional Information 95
- Remote-Copy Pairs 99
- Overview of Targets 99
- Target Definitions 99
- Remote-Copy Target System 100
- Remote-Copy Target System 101 101
- 13 Remote-Copy Links 102
- Links per Remote-Copy Pair 103
- Receiving Links 104
- Growing Virtual Volumes 107
- Renaming Virtual Volumes 108
- Virtual Volumes and CPGs 108
- Basic Information about CPGs 109
- Creating a CPG 109
- 15 Working with Volume Groups 110
- How Volume Groups Work 111
- How Volume Groups Are Named 112
- Unidirectional Volume Groups 113
- Bidirectional Volume Groups 113
- Synchronous Mode 116
- Asynchronous Periodic Mode 116
- Changing One Volume Group 117
- Setting Volume Group Policies 118
- Volume Group Modes 120
- Synchronization 122
- Types of Synchronization 123
- Full Synchronization 124
- Resynchronization 125
- 16 Optimizing Performance 128
- Limiting Throughput 129
- Removing Throughput Limits 130
- HP 3PAR Peer Persistence 134
- HP 3PAR Peer Persistence 135 135
- Manual Transparent Switchover 137
- HP 3PAR Peer Persistence 139 139
- Path Management Policies 149
- Configuring ESX Host Personas 155
- 20 Error Handling 156
- Failure of a Single Link 157
- Target failure 157
- 158 Error Handling 158
- Failure of a Storage System 159
- Write Errors 159
- Read Errors 160
- Read Errors 161 161
- Primary System (System1) 166
- Secondary System (System2) 166
- Switchover 168
- (page 172) 171
- Backup System (System2) 173
- Transfer) 219
- Failover 236
- Recovery 238
- Part V Reference 251
- 25 Quick Setup Guide 252
- (continued) 256
- 27 Using Remote Copy Commands 261
- Issuing Remote-Copy Commands 262
- Starting the vSphere Client 263
- Quorum-Witness CLI Commands 265
- Stopping a Quorum Witness 266
- Removing a Quorum Witness 266
- Quorum Troubleshooting 267
- • Active sysmgr logs 269
- • qw logs on each node 269
- 29 Remote-Copy Snapshots 270
- Snapshots in Synchronous Mode 271
- If the Backup System Fails 272
- If the Primary System Fails 272
- Contacting HP 274
- HP 3PAR documentation 274
- Typographic conventions 277
- HP 3PAR branding information 277
- 31 Documentation feedback 278
- Glossary 279
- 280 Glossary 280
- 282 Index 282
- 284 Index 284
- 286 Index 286
- 288 Index 288
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