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• When storage systems or hosts are under a heavy load, migration might fail. In this case, reduce
the load on the storage systems, and then perform data migration again.
• If data migration fails, the integrity of data at the migration target cannot be ensured. Therefore,
data migration must be performed again.
• If operations on a migration target volume, such as the re-execution of data migration and volume
allocation, cannot be performed after the data migration fails, the storage system must be refreshed.
Values for ensuring the operation of Tiered Storage Manager and recommended
values
The values below ensure the operation of Tiered Storage Manager. Performance might slow down
or memory might become insufficient if a value exceeds these values.
Table 6 Tiered Storage Manager operational values
Recommended valueValue for which performance is ensuredItem
30 or less100
Number of tiers in a
single storage system
1,000 or less1,300
Number of unused
volumes a tier
5 or lessmaximum of 500
Number of volumes that
can be migrated at once
N/Amaximum of 2,000
Number of volumes that
can be displayed as can-
didates for migration tar-
get volumes
Conditions for data migration
Data migration conditions include conditions that apply to all volumes (volume migration requirements),
and conditions that depend on the type of volume (volume migration requirements related to volume
type).
For some volumes, when you try to select those volumes as migration-source volumes, the reasons
why they cannot be selected as migration-source volumes are displayed on-screen.
Volume migration requirements
All volumes for which data migration is to be performed must meet the following conditions:
• Migration-source and migration-target volumes exist within one of the following storage systems
(chassis):
• P9500 Disk Array
• XP24000/XP20000
• XP12000/XP10000/SVS200
• The emulation type, number of blocks, and size are the same for the source and target migration
volumes. However, note the following exceptions:
• If the micro version of XP24000/XP20000 is 60-03-20-00/00-xx or later and if both the mi-
gration source and the migration target volumes are THP/Smart volumes, the emulation type
can be between OPEN-V and OPEN-0V.
Setting up and operating a SAN environment76
- Suite Software 1
- User Guide 1
- DescriptionEditionVersionDate 2
- Contents 3
- User Guide 11 11
- Preface12 12
- Edition Suite 13
- Features 13
- What's new 14
- System configuration 15
- Logging in 16
- Navigating the interface 17
- Navigating help 18
- Operational workflows 19
- Setting up storage resources 20
- Allocating storage 22
- Monitoring storage 22
- 2 Registering managed targets 25
- Registering a storage system 26
- Registering hosts 28
- Methods for registering hosts 29
- HP P9000 Command 30
- Release Notes 32
- Workflow for detecting hosts 33
- Registering managed targets34 34
- Software CLI Reference Guide 35
- About data collection tasks 39
- Registering managed targets40 40
- Creating and deleting volumes 41
- Deleting unallocated volumes 42
- About creating a LUSE volume 42
- Virtualizing storage 43
- Virtualizing volumes 44
- Creating a THP/Smart pool 46
- Expanding THP/Smart pools 47
- Shrinking a THP/Smart pool 47
- Deleting THP/Smart pools 48
- Expanding THP/Smart volumes 48
- Reclaiming zero pages 48
- Administrator Guide 53
- About allocating volumes 57
- Volume allocation methods 58
- Allocate Volumes dialog box 62
- DescriptionsSubfields 64
- Fields and 64
- Dropdowns 64
- User Guide 65 65
- About LUN path management 67
- Editing LUN paths 67
- About unallocating volumes 67
- Replicating volumes 68
- Adding command devices 69
- Editing command devices 70
- Defining copy pairs 70
- Data mobility 71
- Data migration 74
- About data migration 75
- Notes on migrating data 75
- Conditions for data migration 76
- Managing tasks 85
- Viewing task status 86
- Canceling scheduled tasks 86
- 4 Grouping resources 89
- Creating logical groups 90
- Viewing logical group reports 90
- Editing logical groups 90
- Managing storage tiers 91
- Managing resource labels 92
- Searching resource labels 93
- Smart pool list 94
- Viewing information summaries 95
- Accessing the dashboard 96
- Customizing the dashboard 96
- About the hosts tree 97
- Managing alerts 98
- Confirming an alert 99
- Keyword search 100
- Criteria search 100
- Criteria search dialog box 101
- Generating resource reports 103
- Optimizing storage 105
- Advanced Edition Suite 111
- Managing users 112
- User Guide 115 115
- Creating a user account 116
- Editing your own user profile 117
- Changing your password 117
- About access control 120
- Resource groups 121
- Creating resource groups 122
- Editing a resource group 123
- Creating user groups 124
- Setting up security 125
- Downloading components 126
- Managing licenses 127
- Checking license information 128
- DescriptionOutput Item 129
- User Guide 129 129
- 7 Linking related products 131
- Starting Element Manager 132
- 8 Troubleshooting 133
- Troubleshooting134 134
- 9 Support and other resources 135
- Conventions 136
- User Guide 137 137
- A Operations in Legacy mode 139
- User Guide 143 143
- User Guide 145 145
- Operations in Legacy mode148 148
- B CSV export v7 differences 149
- User Guide 153 153
- User Guide 155 155
- User Guide 157 157
- User Guide 159 159
- CSV export v7 differences160 160
- Glossary 161
- Glossary162 162
- Glossary164 164
- Glossary166 166
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