Compare migrating methods<\/strong><\/h3>\n\n\n\nUse these selected comparisons to help you decide which method to use. You can also review full support requirements for\u00a0agentless\u00a0and\u00a0agent-based\u00a0migrate.<\/p>\n\n\n\nSetting<\/strong><\/th>Agentless<\/strong><\/th>Agent-based<\/strong><\/th><\/tr><\/thead>Azure permissions<\/strong><\/td>You need permissions to create an Azure Migrate project, and to register Azure AD apps created when you deploy the Azure Migrate appliance.<\/td> You need Contributor permissions on the Azure subscription.<\/td><\/tr> Replication<\/strong><\/td>A maximum of 300 VMs can be simultaneously replicated from a vCenter Server.
If you have more than 50 VMs for migration, create multiple batches of VMs.
Replicating more at a single time will impact performance.
In the portal, you can select up to 10 machines at once for replication. To replicate more machines, add in batches of 10.<\/td> Replication capacity increases by scaling the replication appliance.<\/td><\/tr> Appliance deployment<\/strong><\/td>The\u00a0Azure Migrate appliance\u00a0is deployed on-premises.<\/td> The\u00a0Azure Migrate Replication appliance\u00a0is deployed on-premises.<\/td><\/tr> Site Recovery compatibility<\/strong><\/td>Compatible.<\/td> You can’t replicate with Azure Migrate Server Migration if you’ve set up replication for a machine using Site Recovery.<\/td><\/tr> Target disk<\/strong><\/td>Managed disks<\/td> Managed disks<\/td><\/tr> Disk limits<\/strong><\/td>OS disk: 2 TB
Data disk: 4 TB
Maximum disks: 60<\/td> OS disk: 2 TB
Data disk: 8 TB
Maximum disks: 63<\/td><\/tr> Passthrough disks<\/strong><\/td>Not supported<\/td> Supported<\/td><\/tr> UEFI boot<\/strong><\/td>Not supported<\/td> The migrated VM in Azure will be automatically converted to a BIOS boot VM.
The OS disk should have up to four partitions, and volumes should be formatted with NTFS.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\nComparing deployment steps<\/strong><\/h3>\n\n\n\nAfter reviewing the limitations, understanding the steps involved in deploying each solution might help you decide which option to choose.<\/p>\n\n\n\nTask<\/strong><\/th>Details<\/strong><\/th>Agentless<\/strong><\/th>Agent-based<\/strong><\/th><\/th><\/tr><\/thead> Deploy the Azure Migrate appliance<\/strong><\/td>A lightweight appliance that runs on a VMware VM.
The appliance is used to discover and assess machines, and to migrate machines using agentless migration.<\/td> Required.
If you’ve already set up the appliance for assessment, you can use the same appliance for agentless migration.<\/td> Not required.
If you’ve set up an appliance for assessment, you can leave it in place, or remove it if you’re done with assessment.<\/td> <\/td><\/tr> Use the Server Assessment tool<\/strong><\/td>Assess machines with the Azure Migrate:Server Assessment tool.<\/td> You can assess machines before you migrate them, but you don’t have to.<\/td> Assessment is optional<\/td> Assessment is optional.<\/td><\/tr> Use the Server Migration tool<\/strong><\/td>Add the Azure Migrate Server Migration tool in the Azure Migrate project.<\/td> Required<\/td> Required<\/td> <\/td><\/tr> Prepare VMware for migration<\/strong><\/td>Configure settings on VMware servers and VMs.<\/td> Yes, Required<\/td> Also, Required<\/td> <\/td><\/tr> Install the Mobility service on VMs<\/strong><\/td>Mobility service runs on each VM you want to replicate<\/td> Not required<\/td> Required<\/td> <\/td><\/tr> Deploy the replication appliance<\/strong><\/td>The\u00a0replication appliance\u00a0is used for agent-based migration. It connects between the Mobility service running on VMs, and Server Migration.<\/td> Not required<\/td> Again, Required<\/td> <\/td><\/tr> Replicate VMs<\/strong>. Enable VM replication.<\/td>Configure replication settings and select VMs to replicate<\/td> Required<\/td> In addition, Required<\/td> <\/td><\/tr> Run a test migration<\/strong><\/td>Run a test migration to make sure everything’s working as expected.<\/td> Required<\/td> Again, Required<\/td> <\/td><\/tr> Run a full migration<\/strong><\/td>Migrate the VMs.<\/td> Required<\/td> Also, Required<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
Setting<\/strong><\/th>| Agentless<\/strong><\/th> | Agent-based<\/strong><\/th><\/tr><\/thead> | Azure permissions<\/strong><\/td> | You need permissions to create an Azure Migrate project, and to register Azure AD apps created when you deploy the Azure Migrate appliance.<\/td> | You need Contributor permissions on the Azure subscription.<\/td><\/tr> | Replication<\/strong><\/td> | A maximum of 300 VMs can be simultaneously replicated from a vCenter Server. | If you have more than 50 VMs for migration, create multiple batches of VMs. Replicating more at a single time will impact performance. In the portal, you can select up to 10 machines at once for replication. To replicate more machines, add in batches of 10.<\/td> Replication capacity increases by scaling the replication appliance.<\/td><\/tr> | Appliance deployment<\/strong><\/td> | The\u00a0Azure Migrate appliance\u00a0is deployed on-premises.<\/td> | The\u00a0Azure Migrate Replication appliance\u00a0is deployed on-premises.<\/td><\/tr> | Site Recovery compatibility<\/strong><\/td> | Compatible.<\/td> | You can’t replicate with Azure Migrate Server Migration if you’ve set up replication for a machine using Site Recovery.<\/td><\/tr> | Target disk<\/strong><\/td> | Managed disks<\/td> | Managed disks<\/td><\/tr> | Disk limits<\/strong><\/td> | OS disk: 2 TB | Data disk: 4 TB Maximum disks: 60<\/td> OS disk: 2 TB | Data disk: 8 TB Maximum disks: 63<\/td><\/tr> Passthrough disks<\/strong><\/td> | Not supported<\/td> | Supported<\/td><\/tr> | UEFI boot<\/strong><\/td> | Not supported<\/td> | The migrated VM in Azure will be automatically converted to a BIOS boot VM. | The OS disk should have up to four partitions, and volumes should be formatted with NTFS.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n Comparing deployment steps<\/strong><\/h3>\n\n\n\n
|
|---|
![\"free](\"https:\/\/www.testpreptraining.ai\/tutorial\/wp-content\/uploads\/2020\/07\/Untitled-design-5.png\")
<\/a><\/figure><\/div>\n\n\n\n