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Copy file name to clipboardExpand all lines: articles/migrate/how-to-create-azure-vmware-solution-assessment.md
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ms.author: rajosh
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ms.manager: abhemraj
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ms.topic: how-to
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ms.date: 06/26/2020
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ms.date: 04/06/2022
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---
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# Create an Azure VMware Solution assessment
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This article describes how to create an Azure VMware Solution assessment for on-premises servers in VMware environment with Azure Migrate: Discovery and assessment.
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This article describes how to create an Azure VMware Solution assessment for on-premises VMs in a VMware vSphere environment with Azure Migrate: Discovery and assessment.
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[Azure Migrate](migrate-services-overview.md) helps you to migrate to Azure. Azure Migrate provides a centralized hub to track discovery, assessment, and migration of on-premises infrastructure, applications, and data to Azure. The hub provides Azure tools for assessment and migration, as well as third-party independent software vendor (ISV) offerings.
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## Before you start
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- Make sure you've [created](./create-manage-projects.md) an Azure Migrate project.
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- If you've already created a project, make sure you've [added](how-to-assess.md) the Azure Migrate: Discovery and assessment tool.
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- To create an assessment, you need to set up an Azure Migrate appliance for [VMware](how-to-set-up-appliance-vmware.md), which discovers the on-premises servers, and sends metadata and performance data to Azure Migrate: Discovery and assessment. [Learn more](migrate-appliance.md).
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- To create an assessment, you need to set up an Azure Migrate appliance for [VMware vSphere](how-to-set-up-appliance-vmware.md), which discovers the on-premises servers, and sends metadata and performance data to Azure Migrate: Discovery and assessment. [Learn more](migrate-appliance.md).
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- You could also [import the server metadata](./tutorial-discover-import.md) in comma-separated values (CSV) format.
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***Assessment Type** | **Details**
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--- | ---
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**Azure VM** | Assessments to migrate your on-premises servers to Azure virtual machines. You can assess your on-premises servers in [VMware](how-to-set-up-appliance-vmware.md) and [Hyper-V](how-to-set-up-appliance-hyper-v.md) environment, and [physical servers](how-to-set-up-appliance-physical.md) for migration to Azure VMs using this assessment type.
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**Azure VM** | Assessments to migrate your on-premises servers to Azure virtual machines. You can assess your on-premises VMs in [VMware vSphere](how-to-set-up-appliance-vmware.md) and [Hyper-V](how-to-set-up-appliance-hyper-v.md) environment, and [physical servers](how-to-set-up-appliance-physical.md) for migration to Azure VMs using this assessment type.
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**Azure SQL** | Assessments to migrate your on-premises SQL servers from your VMware environment to Azure SQL Database or Azure SQL Managed Instance.
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**Azure App Service** | Assessments to migrate your on-premises ASP.NET web apps, running on IIS web servers, from your VMware environment to Azure App Service.
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**Azure VMware Solution (AVS)** | Assessments to migrate your on-premises servers to [Azure VMware Solution (AVS)](../azure-vmware/introduction.md). You can assess your on-premises servers in [VMware environment](how-to-set-up-appliance-vmware.md) for migration to Azure VMware Solution (AVS) using this assessment type. [Learn more](concepts-azure-vmware-solution-assessment-calculation.md)
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**Azure App Service** | Assessments to migrate your on-premises ASP.NET web apps, running on IIS web servers, from your VMware vSphere environment to Azure App Service.
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**Azure VMware Solution (AVS)** | Assessments to migrate your on-premises servers to [Azure VMware Solution (AVS)](../azure-vmware/introduction.md). You can assess your on-premises VMs in [VMware vSphere environment](how-to-set-up-appliance-vmware.md) for migration to Azure VMware Solution (AVS) using this assessment type. [Learn more](concepts-azure-vmware-solution-assessment-calculation.md)
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> [!NOTE]
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> Azure VMware Solution (AVS) assessment can be created for servers in VMware environment only.
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> Azure VMware Solution (AVS) assessment can be created for virtual machines in VMware vSphere environment only.
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There are two types of sizing criteria that you can use to create Azure VMware Solution (AVS) assessments:
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- In **Target location**, specify the Azure region to which you want to migrate.
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- Size and cost recommendations are based on the location that you specify.
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- The **Storage type** is defaulted to **vSAN**. This is the default storage type for an AVS private cloud.
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- The **Storage type** is defaulted to **vSAN**. This is the default storage type for an Azure VMware Solution private cloud.
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- In **Reserved Instances**, specify whether you want to use reserve instances for Azure VMware Solution nodes when you migrate your VMs.
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- If you select to use a reserved instance, you can't specify '**Discount (%)**
- The **Node type** is defaulted to **AV36**. Azure Migrate recommends the node of nodes needed to migrate the servers to AVS.
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- The **Node type** is defaulted to **AV36**. Azure Migrate recommends the node of nodes needed to migrate the servers to Azure VMware Solution.
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- In **FTT setting, RAID level**, select the Failure to Tolerate and RAID combination. The selected FTT option, combined with the on-premises server disk requirement, determines the total vSAN storage required in AVS.
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- In **CPU Oversubscription**, specify the ratio of virtual cores associated with one physical core in the AVS node. Oversubscription of greater than 4:1 might cause performance degradation, but can be used for web server type workloads.
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- In **Memory overcommit factor**, specify the ratio of memory over commit on the cluster. A value of 1 represents 100% memory use, 0.5 for example is 50%, and 2 would be using 200% of available memory. You can only add values from 0.5 to 10 up to one decimal place.
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- In **Dedupe and compression factor**, specify the anticipated dedupe and compression factor for your workloads. Actual value can be obtained from on-premises vSAN or storage config and this may vary by workload. A value of 3 would mean 3x so for 300GB disk only 100GB storage would be used. A value of 1 would mean no dedupe or compression. You can only add values from 1 to 10 up to one decimal place.
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- In **Dedupe and compression factor**, specify the anticipated deduplication and compression factor for your workloads. Actual value can be obtained from on-premises vSAN or storage config and this may vary by workload. A value of 3 would mean 3x so for 300GB disk only 100GB storage would be used. A value of 1 would mean no dedupe or compression. You can only add values from 1 to 10 up to one decimal place.
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1. In **Node Size**:
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- In **Sizing criterion**, select if you want to base the assessment on static metadata, or on performance-based data. If you use performance data:
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- In **Performance history**, indicate the data duration on which you want to base the assessment
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An Azure VMware Solution (AVS) assessment describes:
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-**Azure VMware Solution (AVS) readiness**: Whether the on-premises servers are suitable for migration to Azure VMware Solution (AVS).
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-**Azure VMware Solution (AVS) readiness**: Whether the on-premises VMs are suitable for migration to Azure VMware Solution (AVS).
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-**Number of Azure VMware Solution nodes**: Estimated number of Azure VMware Solution nodes required to run the servers.
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-**Utilization across AVS nodes**: Projected CPU, memory, and storage utilization across all nodes.
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- Utilization includes up front factoring in the following cluster management overheads such as the vCenter Server, NSX Manager (large),
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2. Review the server status:
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-**Ready for AVS**: The server can be migrated as-is to Azure (AVS) without any changes. It will start in AVS with full AVS support.
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-**Ready with conditions**: There might be some compatibility issues example internet protocol or deprecated OS in VMware and need to be remediated before migrating to Azure VMware Solution. To fix any readiness problems, follow the remediation guidance the assessment suggests.
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-**Not ready for AVS**: The VM will not start in AVS. For example, if the on-premises VMware VM has an external device attached such as a cd-rom the VMware VMotion operation will fail (if using VMware VMotion).
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-**Not ready for AVS**: The VM will not start in AVS. For example, if the on-premises VMware VM has an external device attached such as a cd-rom the VMware vMotion operation will fail (if using VMware vMotion).
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-**Readiness unknown**: Azure Migrate couldn't determine the readiness of the server because of insufficient metadata collected from the on-premises environment.
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3. Review the Suggested tool:
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-**VMware HCX or Enterprise**: For VMware servers, VMware Hybrid Cloud Extension (HCX) solution is the suggested migration tool to migrate your on-premises workload to your Azure VMware Solution (AVS) private cloud. [Learn More](../azure-vmware/configure-vmware-hcx.md).
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-**Unknown**: For servers imported via a CSV file, the default migration tool is unknown. Though for VMware servers, it is suggested to use the VMware Hybrid Cloud Extension (HCX) solution.
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-**VMware HCX Advanced or Enterprise**: For VMware vSphere VMs, VMware Hybrid Cloud Extension (HCX) solution is the suggested migration tool to migrate your on-premises workload to your Azure VMware Solution (AVS) private cloud. [Learn More](../azure-vmware/configure-vmware-hcx.md).
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-**Unknown**: For servers imported via a CSV file, the default migration tool is unknown. Though for VMware vSphere VMs, it is suggested to use the VMware Hybrid Cloud Extension (HCX) solution.
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4. Click on an **AVS readiness** status. You can view VM readiness details, and drill down to see VM details, including compute, storage, and network settings.
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## Next steps
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- Learn how to use [dependency mapping](how-to-create-group-machine-dependencies.md) to create high confidence groups.
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-[Learn more](concepts-azure-vmware-solution-assessment-calculation.md) about how AVS assessments are calculated.
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-[Learn more](concepts-azure-vmware-solution-assessment-calculation.md) about how Azure VMware Solution assessments are calculated.
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