Hp XP Continuous Access Software Manual de usuario Pagina 78
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NOTE: To transfer your business tasks back to the primary site:
• Repair failures at the primary site and other locations.
• Follow instructions in “Transfer tasks-DC1 without jrnl pr to DC1 with jrnl pr (delta resync/3DC
multi-target)” (page 80).
Figure 33 Recovering from primary site disasters (when performing delta resync operations)
Change to 3DC multi-target configuration after primary site failure
If you follow the instructions in Recovering from primary site failures and the system does not change
to a 3DC cascading configuration due to primary site failures, you have the ability to change the
system to a 3DC multi-target configuration after removing failures from the primary site and other
locations. In the resulting 3DC multi-target configuration, the former XP Continuous Access secondary
volume is the multi-target primary volume.
To change the system to a 3DC multi-target configuration:
1. Use XP RAID Manager to delete the former (data center 1 to data center 3) XP Continuous
Access Journal pair.
2. If a pair resynchronization has not been performed to reverse the XP Continuous Access
Synchronous pair's primary/secondary relationship (that is, if the pair is suspended), use XP
RAID Manager to resynchronize the pair, so the primary/secondary relationship is reversed
from its original direction (the DC2 to DC3 Journal pair is still intact).
78 XP Continuous Access Journal operations requirements and restrictions
- HP StorageWorks 1
- Contents 3
- 4 Contents 4
- Contents 5 5
- 6 Contents 6
- Contents 7 7
- XP Continuous Access Journal 8
- Overview of functionality 10
- Journal obtain 11
- Journal copy 11
- Journal restore 11
- Components 12
- Local arrays 13
- Journal groups 14
- Data volume pairs 14
- Journal volumes 15
- Journal volume restrictions 16
- Consistency groups 17
- Remote copy connections 18
- Host failover software 19
- Update copy operations 21
- Journal processing 22
- Journal group operations 25
- System requirements 40
- Logical unit (LU) types 41
- Maximum number of pairs 43
- Duplicate volumes 46
- Port configurations 46
- Installing hardware 51
- Planning for journal volumes 53
- Planning process 54
- Arranging journal volumes 55
- Journal volume capacity 55
- Journal operations 57
- Journal volumes (continued) 59
- Basic behavior 67
- Hardware configuration 68
- Setup procedure 69
- Disaster recovery 69
- Hardware configurations 71
- Copying access attributes 85
- 1 See Table 26 (page 87) 87
- DKC Operation pane components 89
- Configuring port attributes 92
- Adding logical paths 97
- Deleting logical paths 99
- 5 Using journal groups 104
- 110 Using journal groups 110
- 112 Using journal groups 112
- 114 Using journal groups 114
- 116 Using journal groups 116
- 120 Using journal groups 120
- Deleting journal groups 123
- 124 Using journal groups 124
- 126 Using journal groups 126
- LUN (logical unit number)3 131
- Logical volume ID4 131
- Usage Monitor pane components 150
- Starting usage monitoring 151
- Stopping usage monitoring 151
- Changing array options 161
- Changing array options 163 163
- $ sudo pairdisplay -gg VG01 168
- -CLI" 169
- Prerequisites 170
- Notes on operations 170
- Notes on operations 171 171
- CL2-J-1CHA-2S 179
- CL2-N-1CHA-2T 179
- # sudo horcmshutdown.sh 16 179
- Remote copy operations 183
- and enas_cifscreate 186
- command 187
- Disaster recovery operations 189
- Commands 193
- Messages 193
- 12 Troubleshooting 194
- Calling HP 201
- 15 SIM reporting 206
- Related documentation 209
- HP technical support 209
- Subscription service 209
- HP websites 209
- Documentation feedback 210
- 212 Index 212
- 214 Index 214
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