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The following table lists the relationship between FS tasks and BC pair status.
BC pair statusFS task
PSUECOPY(RS-R)/RCPYCOPY(RS)/COPYPSUSPSUS(SP)/PSUSCOPY(SP)/COPYPAIRCOPY(PD)/COPY
YesNoYesYesYesYesYesYesCreate pair
YesNoYesYesYesYesYesYesStore snapshot data
YesNoNoYesNoNoNoNoRestore pair
YesYesYesYesYesYesYesYesDelete snapshot data
YesYesYesYesYesYesYesYesRelease pair
Legend
Yes: You can perform the task
No: You cannot perform the task (the command is rejected)
The following table lists the relationship between FS tasks and BC pair status.
BC pair statusFS task
PSUECOPY(RS-R)/RCPYCOPY(RS)/COPYPSUSPSUS(SP)/PSUSCOPY(SP)/COPYPAIRCOPY(PD)/COPY
NoNoNoYesNoNoNoNoCreate pair
NoNoNoYesNoNoNoN/AStore snapshot data
NoNoNoYes
*
NoNoNoN/AStore snapshot data for
a consistency group
NoNoNoYesNoNoNoN/ARestore pair
YesYesYesYesYesYesYesN/ADelete snapshot data
YesYesYesYesYesYesYesN/ARelease pair
* The BC pair status must be “PSUS” during the period between when create the FS pair to store snapshot data and
when FS starts to store snapshot data for a consistency group and when all of the pairs in the consistency group are
split (“PSUS” status). If the BC pair status changes to a status other than “PSUS” while FS is storing snapshot data for
the consistency group, the snapshot data consistency cannot be guaranteed.
Legend
Yes: You can perform the task
No: You cannot perform the task (the command is rejected)
N/A: Not applicable
The following table lists the BC tasks that you can perform if you share an FS P-VOL with an BC
P-VOL.
FS pair statusBC task
PSUERCPYSMPL(PD)PSUS, PFUSPAIR, PFULCOPY
YesNoYesYesYesYesCreate pair
YesNoYesYesYesYesCreate and split pair
YesNoYesYesYesYesSplit pair
YesNoYesYesYesYesNormal Copy
YesNoYesYesYesYesReverse Copy
22 Overview of Fast Snap
- HP XP7 Fast Snap User Guide 1
- DescriptionDateEdition 2
- Contents 3
- 4 Contents 4
- Contents 5 5
- 6 Contents 6
- 1 Overview of Fast Snap 7
- Components of Fast Snap 8
- ◦ Thin Provisioning (THP) 9
- ◦ RAID Manager (RAID Manager) 9
- Components of Fast Snap pairs 9
- Fast Snap 10
- Thin Provisioning 10
- RAID Manager 10
- How Fast Snap works 11
- How Fast Snap works 13 13
- How snapshot data is stored 14
- Fast Snap pair status 15
- 16 Overview of Fast Snap 16
- Access Journal 23
- Ac-S/Cnt Ac-J P-VOL 24
- Resource Partition 26
- System requirements 27
- Shared memory requirements 28
- Changing shared memory 28
- Fast Snap volume requirements 29
- Snapshot group requirements 31
- Pool capacity calculations 35
- 3 Configuring Fast Snap 37
- Creating Fast Snap data pools 38
- Selecting pool volumes 40
- Changing LDEV settings 44
- 46 Configuring Fast Snap 46
- Confirming used LDEV IDs 47
- 48 Configuring Fast Snap 48
- 50 Configuring Fast Snap 50
- Creating LDEVs 51
- 54 Configuring Fast Snap 54
- 56 Configuring Fast Snap 56
- Changing CLPR numbers 60
- 4 Managing Fast Snap Pairs 61
- Creating Fast Snap pairs 64
- Creating Fast Snap pairs 65 65
- 66 Managing Fast Snap Pairs 66
- Creating Fast Snap pairs 67 67
- Creating Fast Snap pairs 69 69
- Complex Fast Snap pairs 70
- Creating Fast Snap pairs 71 71
- Snapshot data storage methods 73
- 74 Managing Fast Snap Pairs 74
- Restoring Fast Snap pairs 79
- Formatting external volumes 81
- 82 Managing Fast Snap Pairs 82
- Deleting Fast Snap pairs 85
- Prerequisites 86
- Releasing Fast Snap pairs 87
- Monitoring pair information 88
- Viewing LDEV properties 91
- Monitoring pair properties 98
- Monitoring synchronous rates 101
- Prerequisite 102
- Monitoring consistency groups 104
- Related topics 105
- Managing pools 110
- Monitoring pool information 111
- Management Status 115
- Managing pools 117 117
- Increasing pool capacity 118
- Managing pools 119 119
- ◦ The cache memory 120
- Managing pools 121 121
- Managing pools 125 125
- Editing pool names 126
- Managing pools 127 127
- Recovering blocked pools 128
- Managing pools 129 129
- Workflow for deleting pools 130
- Managing pools 131 131
- Managing virtual volumes 132
- Managing virtual volumes 133 133
- Deleting virtual volumes 135
- 6 Troubleshooting 138
- ◦ Delete unnecessary V-VOLs 139
- Automatic completion of SIMs 142
- Manually completing SIMs 142
- Confirming SIM completion 143
- 144 Troubleshooting 144
- 7 Support and other resources 145
- Typographic conventions 146
- Technical Support 150
- B Fast Snap GUI reference 157
- Replica LDEVs tab 158
- Local Replication window 159
- BC Pairs tab 160
- FS Pairs tab 163
- Consistency Groups tab 166
- Pairs table 168
- View Pair Properties window 169
- Pair Properties table 170
- Histories window 172
- FS Histories table 173
- ◦ Basic: Internal volume 173
- ◦ THP: THP V-VOL 173
- ◦ External: External volume 173
- Create Pools wizard 176
- Create Pairs wizard 176
- Select Primary Volumes window 177
- Available LDEVs table 178
- Selected LDEVs table 179
- Confirm window 182
- Select Pool window 183
- Split Pairs wizard 184
- Selected Pairs table 185
- Resync Pairs wizard 187
- Delete Pairs window 190
- Setting fields 192
- BC/FS System Options table 192
- DescriptionItem 194
- 194 Fast Snap GUI reference 194
- Glossary 195
- 196 Glossary 196
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