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Contents
1 Overview of Business Copy/Snapshot...........................................................7
Snapshot software....................................................................................................................7
How Business Copy/Snapshot works...........................................................................................7
Volume pairs: P-VOLs and V-VOLs..........................................................................................7
Data pools..........................................................................................................................8
Components............................................................................................................................9
Licenses and capacity...............................................................................................................9
Consistency groups...................................................................................................................9
Interfaces for performing Business Copy/Snapshot operations........................................................9
Remote Web Console.........................................................................................................10
RAID Manager .................................................................................................................10
Pair status..............................................................................................................................10
2 Business Copy/Snapshot planning and design.............................................11
Consistency group system requirements......................................................................................11
Data pool requirements and restrictions.....................................................................................13
Planning pair volumes.............................................................................................................13
Planning V-VOLs and data pools..........................................................................................13
Sizing the data pool workflow........................................................................................14
Calculating the number of Snapshot pairs..................................................................................14
Calculating SS pairs when creating external volumes or V-VOLs...............................................15
Calculating maximum SS pairs based on differential tables workflow........................................15
Calculating maximum SS pairs based on shared memory workflow..........................................16
Calculate the capacity of the pool management block........................................................18
Capacity of pool association information..........................................................................18
Calculating maximum pairs based on pair tables...................................................................19
Determining maximum pairs allowed on your system..............................................................19
Planning for splitting pairs in consistency groups.........................................................................19
Requirements and restrictions for the At-Time Split operation....................................................19
Pair inclusion in At-Time Split operations workflow..................................................................20
Consistency maintenance workflow when sharing SS P-VOLs with Cnt Ac-J or Cnt Ac-S volumes....20
Snapshot secondary volume consistency maintenance........................................................22
External volumes.....................................................................................................................22
External-volume failures......................................................................................................22
3 Business Copy/Snapshot installation and configuration.................................23
Installing and removing Business Copy/Snapshot........................................................................23
Configuration workflow...........................................................................................................23
Creating data pools................................................................................................................23
Creating V-VOLs.....................................................................................................................24
Setting up the RAID Manager command device..........................................................................26
4 Sharing Business Copy/Snapshot volumes...................................................27
Interoperability with other software applications and functions......................................................27
Data Retention and access attributes.........................................................................................28
Thin Provisioning....................................................................................................................29
Resource Partition...................................................................................................................29
Business Copy/Snapshot.........................................................................................................29
Restrictions when sharing P-VOLs..........................................................................................31
Continuous Access Synchronous and Continuous Access Journal...................................................31
Cnt Ac-S and Cnt Ac-J volume backup in 3DC multi-target configuration....................................33
Auto LUN V2.........................................................................................................................33
Fast Snap..............................................................................................................................34
Contents 3
- Abstract 1
- Contents 3
- 4 Contents 4
- Contents 5 5
- 6 Contents 6
- Snapshot software 7
- Data pools 8
- Components 9
- Licenses and capacity 9
- Consistency groups 9
- Pair status 10
- Planning pair volumes 13
- Sizing the data pool workflow 14
- 104,768 tablesExtension 1 15
- 209,600 tablesExtension 2 15
- T ÷ D = M 16
- 576,00 ÷ 4 = 14,400 16
- 751,619,276 bytesSS 17
- External volumes 22
- Configuration workflow 23
- Creating data pools 23
- Creating V-VOLs 24
- Creating V-VOLs 25 25
- Thin Provisioning 29
- Resource Partition 29
- Business Copy/Snapshot 29
- Auto LUN V2 33
- Fast Snap 34
- 5 Pair operations 35
- Configuring pairs 36
- Creating pairs 37
- 38 Pair operations 38
- Pair creation workflow 39 39
- Pair split 40
- Related topics 41
- Prerequisite information 41
- Pair deletion 42
- Monitoring the storage system 44
- Monitoring pair properties 45
- Monitoring synchronous rates 45
- Monitoring consistency groups 46
- Monitoring pool information 46
- Managing data pools 47
- Changing pool volume names 48
- Managing virtual volumes 49
- Changing virtual volume names 50
- Deleting virtual volumes 50
- General troubleshooting 52
- 8 Support and other resources 64
- Typographic conventions 65
- B Snapshot GUI reference 69
- Pools tab 70
- Selected pool volume window 72
- Summary table 73
- Pool Volumes tab 75
- Virtual Volumes tab 76
- Primary Volumes tab 78
- Create Pools wizard 79
- Setting items 80
- Selected pools table 82
- Expand Pool wizard 84
- Edit Pools wizard 86
- Edit Pools window 87
- Selected Pools table 89
- Delete Pools wizard 90
- Restore Pools window 92
- Complete SIMs window 93
- Select Pool Volumes window 95
- Available Pool Volumes table 96
- Selected Pool Volumes table 97
- Pool Property window 98
- Create Pairs wizard 99
- Select Primary Volumes window 100
- Available LDEVs table 101
- Selected LDEVs table 102
- Select Pool window 103
- Selected Pairs table 105
- Edit Mirror Units window 106
- Confirm window 106
- Pair operations workflow 108
- Checking pair status 108
- Creating a pair 108
- Splitting pairs 109
- Resynchronizing pairs 110
- Restoring pairs 110
- Deleting pairs 110
- Deleting pairs 111 111
- (secondary window) 112
- Pair status definitions 113
- Maintaining the system 117
- Pair Operation window 118
- Volume list 119
- Preview list 120
- Command menu 121
- History window 122
- Snapshot window 123
- Glossary 126
- 128 Index 128
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