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Migration with Storage vMotion
Using Storage vMotion, you can migrate a virtual machine and its disk files from one datastore to another
while the virtual machine is running.
You can choose to place the virtual machine and all its disks in a single location, or select separate locations
for the virtual machine configuration file and each virtual disk. The virtual machine does not change execution
host during a migration with Storage vMotion.
During a migration with Storage vMotion, you can transform virtual disks from thick-provisioned to thin-
provisioned or from thin-provisioned to thick-provisioned.
Storage vMotion has a number of uses in administering virtual infrastructure, including the following
examples of use:
n
Upgrading datastores without virtual machine downtime. You can migrate running virtual machines from
a VMFS2 datastore to a VMFS3 datastore, and upgrade the VMFS2 datastore using a two step process.
You can then use Storage vMotion to migrate virtual machines back to the original datastore without any
virtual machine downtime. For information on upgrading VmFS2 to VmFS5, see the vSphere Storage
documentation.
n
Storage maintenance and reconfiguration. You can use Storage vMotion to move virtual machines off of
a storage device to allow maintenance or reconfiguration of the storage device without virtual machine
downtime.
n
Redistributing storage load. You can use Storage vMotion to manually redistribute virtual machines or
virtual disks to different storage volumes to balance capacity or improve performance.
Storage vMotion Requirements and Limitations
A virtual machine and its host must meet resource and configuration requirements for the virtual machine
disks to be migrated with Storage vMotion.
Storage vMotion is subject to the following requirements and limitations:
n
Virtual machine disks must be in persistent mode or be raw device mappings (RDMs). For virtual
compatibility mode RDMs, you can migrate the mapping file or convert to thick-provisioned or thin-
provisioned disks during migration as long as the destination is not an NFS datastore. If you convert the
mapping file, a new virtual disk is created and the contents of the mapped LUN are copied to this disk.
For physical compatibility mode RDMs, you can migrate the mapping file only.
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Migration of virtual machines during VMware Tools installation is not supported.
n
The host on which the virtual machine is running must have a license that includes Storage vMotion.
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ESX/ESXi 3.5 hosts must be licensed and configured for vMotion. ESX/ESXi 4.0 and later hosts do not
require vMotion configuration in order to perform migration with Storage vMotion.
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The host on which the virtual machine is running must have access to both the source and target datastores.
n
For limits on the number of simultaneous migrations with vMotion and Storage vMotion, see “Limits on
Simultaneous Migrations,” on page 134.
vCenter Server and Host Management
116 VMware, Inc.
- Update 1 1
- ESXi 5.0 1
- EN-000775-01 1
- 2 VMware, Inc 2
- Contents 3
- 4 VMware, Inc 4
- VMware, Inc. 5 5
- 6 VMware, Inc 6
- Management 7
- 8 VMware, Inc 8
- Updated Information 9
- 10 VMware, Inc 10
- Virtualization Basics 11
- 12 VMware, Inc 12
- VMware, Inc. 13 13
- 14 VMware, Inc 14
- VMware, Inc. 15 15
- 16 VMware, Inc 16
- VMware, Inc. 17 17
- 18 VMware, Inc 18
- VMware, Inc 19
- 20 VMware, Inc 20
- VMware, Inc. 21 21
- 22 VMware, Inc 22
- Using the vSphere Client 3 23
- Panel Sections 24
- View Virtual Machine Console 25
- Using Lists 26
- Custom Attributes 27
- Select Objects 28
- Install Plug-Ins 29
- Disable and Enable Plug-Ins 29
- Remove Plug-Ins 29
- Save vSphere Client Data 30
- Working with Active Sessions 30
- VMware, Inc. 31 31
- 32 VMware, Inc 32
- Host Configuration 33
- Configuring vCenter Server 33
- 34 VMware, Inc 34
- VMware, Inc. 35 35
- 36 VMware, Inc 36
- Configure Runtime Settings 37
- 38 VMware, Inc 38
- Configure SNMP Settings 39
- View Ports Settings 39
- Configure Timeout Settings 40
- Configure Logging Options 40
- VMware, Inc. 41 41
- Configure SSL Settings 42
- Configure Advanced Settings 42
- VMware, Inc. 43 43
- 44 VMware, Inc 44
- VMware, Inc. 45 45
- 46 VMware, Inc 46
- Appliance 47
- 48 VMware, Inc 48
- VMware, Inc. 49 49
- 50 VMware, Inc 50
- 52 VMware, Inc 52
- VMware, Inc. 53 53
- 54 VMware, Inc 54
- VMware, Inc. 55 55
- 56 VMware, Inc 56
- Organizing Your Inventory 6 57
- Create Datacenters 58
- Add Hosts 58
- Create Clusters 59
- Create Resource Pools 60
- Create Datastores 61
- Create Host-Wide Networks 62
- VMware, Inc. 63 63
- 64 VMware, Inc 64
- Add a Distributed Port Group 65
- 66 VMware, Inc 66
- 68 VMware, Inc 68
- Licensing for ESXi 5.0 Hosts 69
- 70 VMware, Inc 70
- Calculating the vRAM Usage 71
- Compliance Rules 71
- Solution Licensing 72
- Example: Standalone Scenario 73
- About the License Portal 74
- Managing Licenses 75
- View License Information 76
- VMware, Inc. 77 77
- Export License Information 78
- VMware, Inc. 79 79
- 80 VMware, Inc 80
- Viewing License Use 81
- 82 VMware, Inc 82
- VMware, Inc. 83 83
- Details for a License Key 84
- Export a License Use Report 85
- 86 VMware, Inc 86
- VMware, Inc. 87 87
- 88 VMware, Inc 88
- System Log Files 8 89
- External System Logs 90
- Export System Log Files 90
- Chapter 8 System Log Files 91
- VMware, Inc. 91 91
- Collecting Log Files 92
- Collect vSphere Log Files 93
- Collect ESXi Log Files 93
- ESXi VMkernel Files 93
- 94 VMware, Inc 94
- Managing Tasks 95
- View Recent Tasks 96
- View Scheduled Tasks 96
- Cancel a Task 97
- Schedule Tasks 97
- Create a Scheduled Task 98
- Canceling Scheduled Tasks 99
- Change or Reschedule a Task 100
- Remove a Scheduled Task 100
- Managing Events 101
- Filter the Events List 102
- Export Events Data 103
- Trigger and Alarm on an Event 103
- Report Errors to VMware 104
- Components 10 105
- Starting vCenter Server 106
- Disconnect a Managed Host 107
- Remove a Host from a Cluster 108
- VMware, Inc. 109 109
- 110 VMware, Inc 110
- Migrating Virtual Machines 12 111
- Cold Migration 112
- Migration with vMotion 113
- 114 VMware, Inc 114
- VMware, Inc. 115 115
- 116 VMware, Inc 116
- CPU Compatibility and EVC 117
- CPU Families and Feature Sets 118
- EVC Requirements 119
- Create an EVC Cluster 120
- VMware, Inc. 121 121
- 122 VMware, Inc 122
- CPU Compatibility Masks 123
- 124 VMware, Inc 124
- VMware, Inc. 125 125
- 126 VMware, Inc 126
- VMware, Inc. 127 127
- 4 Select a disk format 128
- VMware, Inc. 129 129
- 130 VMware, Inc 130
- VMware, Inc. 131 131
- 132 VMware, Inc 132
- Storage vMotion Examples 133
- Network Limits 134
- Datastore Limits 134
- Host Limits 135
- 136 VMware, Inc 136
- Using vCenter Maps 13 137
- Map Icons 138
- View vCenter Maps 139
- Print vCenter Maps 140
- Export vCenter Maps 140
- Numerics 141
- 142 VMware, Inc 142
- VMware, Inc. 143 143
- 144 VMware, Inc 144
- VMware, Inc. 145 145
- 146 VMware, Inc 146
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