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Assess your on-premises resources to plan where your Azure migration should start.

Assess in three steps

In this phase, we guide your decision-making as you begin your migration journey. We recommend establishing your cloud migration priorities and objectives before you start planning, so you can refer to those as you go. Automated migration tools will then provide additional insight into your environment and dependencies to build out cloud migration project plans.

By assessing your environment in steps, you can build a template for future use, aligning to individual apps, locations or groups within your organisation. Start with applications that are expected to have few dependencies to get your migration moving quickly.


Your organisation probably runs hundreds – if not thousands – of applications across a range of servers. While your current management tools may provide a good representation of these, to kick-start any migration, you need an inventory mechanism that can feed data into subsequent steps.

Using cloud migration assessment tools, compile an inventory of the physical and virtual servers in your environment. This data can include profile information and performance metrics about your applications. At the end of this step, you’ll have a complete inventory of servers with metadata for each, allowing you to build your cloud migration plan.

Map on-premises applications

Using information from your discovery, map your servers to represent your on-premises applications. This will help you identify dependencies or communication between servers so you can include all necessary application components in your cloud migration plan – to help reduce risks and ensure a smooth migration. Group your servers logically to represent the applications, and then select the best migration strategy for each application based on its requirements and migration objectives.


With your application groups mapped, evaluate how best to move each on-premises application. Use cloud migration assessment tools to access Azure resource recommendations and migration strategies for your application servers.

Evaluate the potential cost savings of Azure migration. Do this by calculating and comparing your total cost of ownership (TCO) for Azure with that of a comparable Azure deployment on your on-premises infrastructure.

Cloud migration assessment tools

Expedite the assessment phase by using automation and intelligence provided by a range of tools. You can use Microsoft tools mapped to specific actions or tools from our partner ecosystem that best meet your needs.

Choose the right tools for your needs

Microsoft tools

Azure Migrate

Discover, map and evaluate your on-premises applications. Use this tool when:

  • On-premises environment is VMWare.
  • You need a solution available at no additional cost.
Learn more about Azure Migrate

Migration partner tools

A range of partner solutions are available to support your assessment and beyond.

Using a partner solution is often useful when:

  • On-premises environment includes applications running on platforms other than VMWare.
  • You want a single solution integrated beyond the assessment phase.

The following partner solutions provide deep capabilities to assist in your assessment.

TSO Logic

Learn how to use Microsoft tools to assess your environment and start your Azure migration journey.

App migration to Azure: Your options explained

Walk through assessing your on-premises workloads and planning your migration strategy with Jeremy Winter, Director of Azure Management.

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Take the next step now

Azure migration journey