Hp XP P9500 Storage User Manual Page 15
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2 Requirements and specifications
This chapter provides system requirements for Continuous Access Journal.
System requirements
Continuous Access Journal operations are performed from the primary system to the secondary
system, which contain the Cnt Ac-J P-VOLs, S-VOLs, and master and restore journal volumes. Copy
operations are carried out via the data path.
General requirements for these and all Cnt Ac-J components are listed below.
Table 1 General system requirements
RequirementItem
Two—one at the local site, one at the remote site.Number of P9500 systems
A maximum of four P9500 systems can be used at each site, and any combination
— from one to four storage systems on one or both sites — can be used:
P9500 is required at the primary or secondary site. Any of the following can be
paired with it:
Storage systems at primary and
secondary sites
• P9500 (70-01-01-xx/xx or later)
• XP24000/XP20000 Disk Array (60-07-51-xx/xx or later)
• XP12000 Disk Array/XP10000 Disk Array (50-09-98-xx/xx or later)
See previous item; see also “Planning for previous models ” (page 29).Previous model storage systems
supported
Continuous Access Journal
• Must be installed on primary and secondary P9500 systems.
• License keys required.
• Cnt Ac-J and Cnt Ac-J Z can coexist in the same storage system.
• For licensing capacity requirements when Cnt Ac-J volumes are shared with
other P9500 software volumes, see “Thin Provisioning ” (page 136)
• For information on expired licenses or exceeding licensed capacity, see the HP
XP P9000 Remote Web Console User Guide.
Other licenses required
Interfaces
• Remote Web Console:
Must be LAN-attached to the primary system.◦
◦ Not required on the secondary system, but recommended in order to change
Cnt Ac-J parameters and access the S-VOL for disaster recovery and
maintenance.
◦ The following roles are required:
Storage Administrator (Remote Copy), to perform pair operations
Storage Administrator (System Resource Management), to configure settings
• RAID Manager:
◦ Optional
◦ Command device required
For supported OS versions, see the HP SPOCK website: http://www.hp.com/
storage/spock for the latest information.
Supported host platforms
Fibre channel with either direct and switch connections.Data path
System requirements 15
- User Guide 1
- Contents 3
- 4 Contents 4
- Contents 5 5
- 6 Contents 6
- Contents 7 7
- P9500 storage systems 10
- Pair volumes 11
- Journal volumes 11
- Journals 11
- Reference Information 12
- Differential data management 13
- S-VOL write option 14
- Pair status 14
- System requirements 15
- Plan and design workflow 18
- Write-workload 19
- Sizing journal volumes 20
- Planning journals 20
- RAID group configuration 21
- Planning journal volumes 22
- Planning pair volumes 22
- Planning pair volumes 23 23
- Host failover software 25
- Planning for previous models 29
- System option modes 31
- 4 Planning the data path 34
- Calculating bandwidth 35
- 36 Planning the data path 36
- Sizing bandwidth 37 37
- 38 Planning the data path 38
- Packet loss 39
- Example configuration 40
- Port types 40
- Additional switches 41
- 42 Planning the data path 42
- 5 Configuration operations 44
- 46 Configuration operations 46
- 48 Configuration operations 48
- 50 Configuration operations 50
- 52 Configuration operations 52
- 6 Pair operations 54
- Creating the initial copy 55 55
- 56 Pair operations 56
- Creating the initial copy 57 57
- Splitting pairs 58
- Splitting mirrors 59
- Creating point-in-time copies 60
- Resynchronizing pairs 60
- Resynchronizing pairs 61 61
- Resynchronizing mirrors 62
- Deleting pairs 62
- Deleting pairs 63 63
- Deleting pairs in a mirror 64
- Deleting pairs in a mirror 65 65
- 7 Monitoring the system 66
- PSUS types and behaviors 69
- PSUE types and behaviors 71
- Selecting data to be graphed 74
- Manipulating graph, save data 76
- History of pair operations 79
- 8 Maintaining the system 80
- ◦ Initial 81
- ◦ Stopped 81
- ◦ Hold(Failure) 81
- 82 Maintaining the system 82
- 84 Maintaining the system 84
- Logical path maintenance 86
- Deleting logical paths 87
- When power stops unexpectedly 88
- 90 Maintaining the system 90
- General recovery procedures 91
- Cnt Ac-J secondary site: HOLD 100
- 10 Troubleshooting 103
- Troubleshooting logical paths 105
- B9E2, B9E4, D004 109
- B9E4, D004 112
- Miscellaneous troubleshooting 121
- 122 Troubleshooting 122
- Contacting HP 123
- Related information 123
- Typographic conventions 124
- Overview 126
- Failure recovery 127
- B Sharing volumes 133
- Cache Residency 135
- Data Retention 135
- Thin Provisioning 136
- LUN Expansion 137
- LUN Manager 137
- Fast Snap and Snapshot 137
- 138 Sharing volumes 138
- Virtual LUN 139
- Auto LUN 140
- 3DC cascade configuration 141
- Delta resync configuration 144
- ◦ Use the same mirror ID 146
- Problems that can occur 148
- ◦ Assign it to other mirrors 149
- ◦ Use it with RAID Manager 149
- 2 Data center configuration 151
- Pair status and data currency 156
- E GUI reference 157
- Journal Detail window 159
- Pair Operation window 165
- Paircreate dialog box 169
- Pairsplit-r dialog box 171
- Pairresync dialog box 172
- Pairsplit-S dialog box 173
- Change Pair Option dialog box 174
- Display Filter dialog box 174
- DKC Operation window 175
- Remote systems information 176
- Logical Path Information 177
- DKC Status dialog box 179
- Add DKC dialog box 180
- DKC Option dialog box 181
- Usage Monitor window 182
- History window 183
- Operations in History window 184
- History window notes 185
- Optional Operation window 186
- Glossary 188
- 190 Index 190
- 192 Index 192
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