Hp XP Racks Bedienungsanleitung Seite 39
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Cache Residency
The volumes which set the Cache Residency can be assigned as the Continuous Access Synchronous
pair. You can perform Cache Residency operations on Cnt Ac-S P-VOLs and S-VOLs. For more
information, see the HP XP7 Performance for Open and Mainframe Systems User Guide.
Data Retention
You can create a Cnt Ac-S pair using volumes that have been assigned the access attribute by the
Data Retention (DRU). However, you cannot specify a volume with the "S-VOL Disable" attribute
as a Cnt Ac-S S-VOL.
The following table shows whether a DRU volume with the specified access attribute can be used
as a Cnt Ac-S P-VOL or S-VOL.
Availability of Cnt Ac-S P-VOL or S-VOLDRU access attribute
S-VOLP-VOLRead/Write
YesYes
YesYesRead Only
YesYesProtect
NoYesS-VOL Disable
NoYesRead Only and S-VOL Disable
NoYesProtect and S-VOL Disable
The following tables show Cnt Ac-S volumes and status with Data Retention operations that can
be performed using Remote Web Console.
Data Ret operationPAIR
status
Cnt Ac-S
Volume
Referring
access
attribute
Changing access attribute
S-VOL
Disable
ProtectRead OnlyRead/Write
YesYesYesYesYesSMPLP-VOL
YesYesYesYesYesCOPY
YesYesYesYesYesPAIR
YesYesYesYesYesPSUS
YesYesYesYesYesPSUE
YesYesYesYesYesSMPLS-VOL
YesNoNoNoNoCOPY
YesNoNoNoNoPAIR
YesYesYesYesYesPSUS
YesYesYesYesYesPSUE
Cache Residency 39
- Abstract 1
- DescriptionDateEdition 2
- Contents 3
- 4 Contents 4
- Contents 5 5
- 6 Contents 6
- Typical components 8
- Storage systems 8
- Volume pairs 9
- Data path 9
- Consistency groups 9
- Interfaces 9
- Failover software 10
- Pair status 11
- Storage system preparation 15
- System options 16
- Determining Round Trip Time 16
- Differential data 21
- Consistency group planning 24
- Consistency group planning 25 25
- Consistency group planning 27 27
- Host access after split 29
- Consistency group 127 30
- Consistency group planning 31 31
- Host failover software 32
- Fibre Channel requirements 33
- Switch connection 34
- Extender connection 34
- Port requirements 35
- Port attributes 36
- P-VOLs and S-VOLs 37
- Cache Residency 39
- Data Retention 39
- Thin Provisioning 40
- LUN Manager 41
- Performance Monitor 41
- Business Copy 41
- Continuous Access Journal 44
- Virtual LUN 44
- Auto LUN 44
- 5 Cnt Ac-S configuration 45
- 46 Cnt Ac-S configuration 46
- 48 Cnt Ac-S configuration 48
- 50 Cnt Ac-S configuration 50
- 6 Cnt Ac-S pair operations 51
- 52 Cnt Ac-S pair operations 52
- Splitting pairs 53
- 54 Cnt Ac-S pair operations 54
- Resynchronizing pairs 55
- Deleting pairs 56
- Deleting pairs 57 57
- How pair status changes 59
- Pair status definitions 60
- Split types 62
- System behavior 63
- Changing P-VOL Fence Level 64
- Forcibly deleting pairs 65
- DefinitionStatus 69
- Deleting remote paths 70
- General information 72
- 8 Data migration 74
- 9 Disaster recovery 75
- 76 Disaster recovery 76
- 78 Disaster recovery 78
- 10 Troubleshooting 79
- Remote path status problems 80
- Split pair problems 82
- Pinned track recovery 91
- Contacting HP 92
- Related information 92
- Typographic conventions 93
- A Cnt Ac-S GUI reference 95
- Summary section 96
- Replica LDEVs tab 96
- Remote Replication window 97
- Cnt Ac-J Pairs tab 99
- Mirrors tab 101
- Remote Connections window 102
- View Port Condition 103
- Connections (To) tab 103
- Connections (From) tab 104
- Add Remote Connection wizard 105
- Remote Storage System 106
- Remote Paths 106
- Local Storage System 106
- Confirm window 107
- Selected Remote Paths table 108
- Remote Paths table 109
- Add Remote Paths wizard 112
- Add Remote Paths window 113
- Remove Remote Paths wizard 115
- Setting Fields 118
- Storage System Options 119
- CU Options 119
- Change CU Options window 120
- Create Pairs wizard 122
- Settings 123
- Primary Volume Selection 124
- Secondary Volume Selection 124
- Mirror Selection 125
- Selected Pairs table 126
- Change Settings window 127
- Split Pairs wizard 132
- Resync Pairs wizard 135
- Delete Pairs wizard 138
- Edit Pair Options wizard 142
- Pair Properties 145
- Pair Detail 146
- Pairs table 147
- Histories window 148
- Histories table 149
- Glossary 151
- 152 Glossary 152
- 154 Index 154
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