AWS Architecture Blog

Migration updates announced at re:Invent 2021

re:Invent is a yearly event that offers learning and networking opportunities for the global cloud computing community. 2021 marks the launch of several new features in different areas of cloud services and migration.

In this blog, we’ll cover some of the most important recent announcements.

AWS Mainframe Modernization (Preview)

Mainframe modernization has become a necessity for many companies. One of the main drivers fueling this requirement is the need for agility, as the market constantly demands new functionalities. The mainframe platform, due to its complex dependencies, long procurement cycles, and escalating costs, makes it impossible for companies to innovate at the needed pace.

Mainframe modernization can be a complex undertaking. To assist you, we have launched a comprehensive platform, called AWS Mainframe Modernization, that enables two popular migration patterns: replatforming, and automated refactoring.

AWS Mainframe Modernization flow

Figure 1. AWS Mainframe Modernization flow

AWS Migration and Modernization Competency

Application modernization is becoming an important migration strategy, especially for strategic business applications. It brings many benefits: software licensing and operation cost optimization, better performance, agility, resilience, and more. Selecting a partner with the required expertise can help reduce the time and risk for these kinds of projects. In the next section, you’ll find a summary of the experience required by a partner to get the AWS Migration and Modernization Competency. More information can be found at AWS Migration Competency Partners.

AWS Application Migration Service (AWS MGN)

AWS MGN is recommended as the primary migration service for lift and shift migrations. Customers currently using AWS Server Migration Service are encouraged to switch to it for future migrations.

Starting in November 2021, AWS MGN supports agentless replication from VMWare vCenter versions 6.7 and 7.0 to the AWS Cloud. This new feature is intended for users who want to rehost their applications to AWS, but cannot install the AWS Replication Agent on individual servers due to company policies or technical restrictions.

AWS Elastic Disaster Recovery

Two of the pillars of the Well-Architected Framework are Operational Excellence and Reliability. Both are directly concerned with the capability of a service to recover and work efficiently. AWS Elastic Disaster Recovery is a new service to help you to minimize downtime and data loss with fast, reliable, and recovery of on-premises and cloud-based applications. It uses storage, compute, point-in-time recovery, and cost-optimization.

AWS Resilience Hub

AWS Resilience Hub is a service designed to help customers define, measure, and manage the resilience of their applications in the cloud. This service helps you define RTO (Recovery Time Objective) and RPO (Recovery Point Objective) and evaluates the configuration to meet the requirements defined. Aligned with the AWS Well-Architected Framework, this service can recover applications deployed with AWS CloudFormation, and integrates with AWS Fault Injection Simulator, AWS Systems Manager, or Amazon CloudWatch.

AWS Migration Hub Strategy Recommendations

One of the critical tasks in a migration is determining the right strategy. AWS Migration Hub can help you build a migration and modernization strategy for applications running on-premises or in AWS. AWS Migration Hub Strategy Recommendations were announced on October 2021. It’s designed to be the starting point for your cloud journey. It helps you to assess the appropriate strategy to transform your portfolios to use the full benefits of cloud services.

AWS Migration Hub Refactor Spaces (Preview)

Refactoring is the migration strategy that requires the biggest effort, but it permits you to take full advantage of cloud-native features to improve agility, performance, and scalability. AWS Migration Hub Refactor Spaces is the starting point for incremental application refactoring to microservices in AWS. It will help you reduce the undifferentiated heavy lifting of building and operating your AWS infrastructure for incremental refactoring.

AWS Database Migration Service

AWS Database Migration Service (AWS DMS) is a service that helps you migrate databases to AWS quickly and securely.

AWS DMS Fleet Advisor is a new free feature of AWS DMS that enables you to quickly build a database and analytics migration plan, by automating the discovery and analysis of your fleet. AWS DMS Fleet Advisor is intended for users looking to migrate a large number of database and analytic servers to AWS.

AWS Microservice Extractor for .NET is a new free tool and simplifies the process of re-architecting applications into smaller code projects. Modernize and transform your .NET applications with an assistive tool that analyzes source code and runtime metrics. It creates a visual representation of your application and its dependencies.

This tool visualizes your applications source code, helps with code refactoring, and assists in extraction of the code base into separate code projects.  Teams can then develop, build, and operate independently to improve agility, uptime, and scalability.

AWS Migration Evaluator

AWS Migration Evaluator (ME) is a migration assessment service that helps you create a directional business case for AWS Cloud planning and migration. Building a business case for the cloud can be a time-consuming process on your own. With Migration Evaluator, organizations can accelerate their evaluation and decision-making for migration to AWS. During 2021, there were some existing improvements to mention:

  • Quick Insights. This new capability of Migration Evaluator, provides customers with a one-page summary of their projected AWS costs, based on measured on-premises provisioning and utilization.
  • Enhanced Microsoft SQL Discovery. This is a new feature of the Migration Evaluator Collector, which assists you by including your SQL Server environment in their migration assessment.
  • Agentless Collection for Dependency Mapping. The ME Collector now enables agentless network traffic collection to be sent to the customer’s AWS Migration Hub account.

AWS Amplify Studio

This is a visual development environment that offers frontend developers new features to accelerate UI development with minimal coding, while integrating with Amplify. Read Introducing AWS Amplify Studio.


Migration is a crucial process for many enterprises as they move from on-premises systems to the cloud. It helps accelerate your cloud journey, and offers additional tools and methodologies created by AWS. AWS has created and is continually improving services and features to optimize the migration process and help you reach your business goals faster.

Related information

Angélica Ortega

Angélica Ortega

Angélica Ortega is a Solutions Architect for Business Partners focused on serving partners in Latin America, from the AWS Distribution program. She has 18 years of experience in the Information Technology sector. She has been a project manager, solution architect, consultant, managed service designer, and mobile solution developer.

Daniel Flórez

Daniel Flórez

Daniel Flórez is a Migration Partner Solutions Architect working with partners across Latin America. He has 19 years of experience in roles which include developer, consultant, solutions architect, and data engineer.

Juan Fernández

Juan Fernández

Juan Fernández is a Solutions Architect for Business Partners focused on serving partners in Latin America, specifically Central America and the Carribean. He has 20 years of experience in the Information Technology sector with several roles such as Developer, Consultant, Project Manager, and Solutions Architect specializing in Security, Monitoring, and Automation.