Hp XP P9500 Storage User Manual Page 76
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Table 5 Remote copy I/O statistics data (continued)
DescriptionData type
Initial Copy
The initial copy hit rate. The unit is percent.Initial Copy Hit Rate
The average transfer rate for initial copy operations. The unit is kilobytes
per second.
Average Transfer Rate
Asynchronous Copy
The number of asynchronous remote I/Os per second at the primary system.M-JNL Asynchronous RIO count
The number of journals at the primary system.M-JNL Total Number of Journal
The average transfer rate for journals in the primary system. The unit is
kilobytes per second.
M-JNL Average Transfer Rate
The remote I/O process time on the primary system. The unit is milliseconds.M-JNL Average RIO Response
The number of asynchronous remote I/Os per second at the secondary
system.
R-JNL Asynchronous RIO count
The number of journals at the secondary system.R-JNL Total Number of Journal
The average transfer rate for journals in the secondary system. The unit is
kilobytes per second.
R-JNL Average Transfer Rate
The remote I/O process time on the secondary system. The unit is
milliseconds.
R-JNL Average RIO Response
M-JNL
Data usage rate for master journals. The unit is percent.Data Used Rate
Metadata usage rate for master journals. The unit is percent.Meta Data Used Rate
R-JNL
Data usage rate for restore journals. The unit is percent.Data Used Rate
Metadata usage rate for restore journals. The unit is percent.Meta Data Used Rate
Manipulating graph, save data
• To enlarge the graph, right-click it and select Large Size.
• To close the graph, right-click it and select Close.
• To save monitoring data in text files, use the Performance Monitor Export Tool.
Monitoring I/O and hardware performance with Performance Monitor
Performance Monitor software provides detailed information on I/O activity and hardware
performance in the P9500 systems. Storage system usage and performance data that is collected
and displayed by Performance Monitor enables you to:
• Identify the optimum timing for performing Continuous Access Journal copy operations.
• Determine the best locations for the Continuous Access Journal S-VOLs (for example; parity
groups with less frequently accessed volumes to avoid bottlenecks of back-end activity)
• Monitor system performance during Continuous Access Journal operations and during testing
activities.
Use the following procedure to lessen the impact on Continuous Access Journal operations while
Performance Monitor is collecting data for one or more systems on the same P9500 internal LAN:
76 Monitoring the system
- 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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