applications to Linux. The rehost migration strategy involves leveraging AWS Infrastructure-as-a-Service (IaaS) offerings to redeploy workloads on a cloud instance. The AWS Transfer Family provides fully managed support for file transfers directly into and out of Amazon S3. might want to retire applications that have an average CPU and memory usage below It optimizes data transfers to AWS by compressing data and sending only changed data, and provides low-latency performance by caching frequently accessed data on premises. A better answer is to model the application needs using an automation platform, and then make modifications to the model to represent the Replatform shapings. This is a common strategy for vendor-based applications. You can use AWS Application Migration Service (MGN) to quickly lift and shift (rehost) a large number of servers from physical, virtual, or cloud infrastructure to AWS. Transferring applications to the cloud modernizing certain parts. All Rights Reserved. Do it repeatedly to adjust the backup strategy when its necessary. AWS DMS supports homogeneous migrations such as Oracle to Oracle, as well as heterogeneous migrations between different database platforms, such as Oracle or Microsoft SQL Server to Amazon Aurora. The guiding principle should be how you can get the maximum benefit out of your migration. Although the concluding goals are mostly similar for all migrations, the complexity of migrating applications to the cloud varies based on the type of workload, its underlying components, and the business objective. During relocation, the application continues With the cloud, you don't have such an option. 6 0 obj Thanks for letting us know this page needs work. Compliance with the basic checklist and experienced professionals on your side will ensure a smooth transition. The replatform migration strategy increases the flexibility, agility, and resilience of workloads while enabling cloud-native capabilities such as automation. to serve users, which minimizes disruption and downtime. AWS Control Tower automates the set-up of a baseline environment for running secure and scalable workloads in AWS based on prescriptive best practices that enable guardrails for security, operations, and compliance. %PDF-1.3 Migrate an Oracle database to Amazon RDS for Oracle by using Oracle GoldenGate flat file adapters. Customers choose AWS to help manage and govern their AWS and non-AWS resources. section reviews each migration strategy and their common use cases. The strategy also saves time and migration costs since enterprises can modernize workloads without rewriting application code. Moving from perpetual licenses to SaaS vendors. Establish cloud KPIs. Both Windows and Linux operating system versions. AWS cloud migrations are typically broken down into three phases, including: The seven Rs of cloud migration include Retire, Retain, Relocate, Repurchase, Replatform, Rehost, and Refactor. Migration Hub allows you to choose the AWS and partner migration tools that best fit your needs, while providing visibility into the status of migrations across your portfolio of applications. quality and delivery of new application features and fixes. (physical, virtual, or another cloud) to the AWS Cloud without worrying about compatibility, This strategy helps you to scale your applications without implementing any cloud However, there are other ways to get Replatforming wrong: Choosing an inappropriate AWS service to replace a component (e.g. taking full advantage of cloud-native features to improve agility, performance, and changes to the application. To use the Amazon Web Services Documentation, Javascript must be enabled. Most rehosting can be automated with tools (e.g. These strategies build upon the 5 Rs that Gartner outlined here in 2011. The SAP workload's data points help to choose the appropriate migration approach: classical or an SAP Database . Choosing the replatforming environment. Assess Mobilize Migrate and Modernize Assess Create a data-access policy. This is the migration strategy for applications that you want to keep in your source environment or applications that you are not ready to migrate. AWS Application Migration Service (AWS MGN) simplifies and expedites migration from physical, virtual, and cloud infrastructure. For many applications, the best approach is to rapidly move to cloud and then rearchitect in AWS. Install the AWS quickstart Install the AWS quickstart. Although you've already done a lot to prevent accidental data losses, you may want to play it safe with critical data. system to the latest version. However, there are infrastructure-as-code (IaC) tools that can assist with it. You can find, buy, deploy, and manage over 7,000 third-party software listings and services from more than 1,500 unique independent software vendors to build solutions for your business. 7 0 obj The replatform migration strategy increases the flexibility, agility, and resilience of workloads while enabling cloud-native capabilities such as automation. AWS can help you develop this business case using the AWS Cloud Economics Center, a proven methodology based on hundreds of customer engagements that delivers a compelling, Board-level business case and justification prior to embarking on a large-scale migration. For example, you can use this strategy to You want to eliminate the cost of maintaining and hosting the application. You can reduce costs by using AWS Turning off applications that you dont need anymore. As this strategy doesnt require significant changes in the configuration and architecture of workloads, its not necessary to retrain staff or invest in upgraded hardware, thereby reducing operating expenses. your business goals and your target platform. containerized applications by using the AWS AMS takes responsibility for operating your cloud environment post migration, such as analyzing alerts and responding to incidents, enabling your internal resources to focus on the more strategic areas of your business. Often considered the most complex AWS migration option, refactoring involves re-architecting workloads to support AWS cloud-native capabilities from the ground up. For example, you might want to keep zombie or With their help, companies can migrate faster, reducing costs and various risks. You can use the same automated process to migrate a wide range of applications and databases, including SAP, Oracle, and Microsoft SQL Server. Implies that you simply clone your servers and move them to the Infrastructure as a Service (IaaS) of a chosen cloud provider. to retire some applications that have an average CPU and memory usage between 5 and Maybe youre still riding out some depreciation, arent ready to prioritize an application that was recently upgraded, or are otherwise not inclined to migrate some applications. Open the AWS DMS console, and choose Database migration tasks from the navigation pane. AWS DataSyncis a data transfer service that simplifies, automates and accelerates moving data between on-premises storage, and Amazon S3, Amazon Elastic File System (Amazon EFS), or Amazon FSx for Windows File Server. You can use AWS DMS to continuously replicate your data with high availability and consolidate databases into a petabyte-scale data warehouse by streaming data to Amazon Redshift and Amazon S3. CloudEndure Migration, AWS VM Import/Export ), although some customers prefer to do this manually as they learn how to apply their legacy systems to the new cloud platform. That's an evolution towards Replatforming. Test the waters. applications These applications require careful assessment and Replatform. Keep building, Stephen @stephenorban orbans@amazon.com. Dependencies between applications are another crucial point to consider in the very beginning. These services provide a set of tools that enable organizations to migrate applications from on-premises data centers to the AWS cloud. Thanks for letting us know we're doing a good job! A good AWS engineer will know how to replace common application components with AWS services. Retiring the application means that you can shut down the servers within that 1 /BBox [0 167 612 625] /Resources 9 0 R /Group << /S /Transparency /CS /DeviceCMYK Moving a CRM to Salesforce.com, an HR system to Workday, a CMS to Drupal, and so on. Do I qualify? As your applications move to the cloud, you can useAWS Service Catalog to create and manage catalogs of IT services that are approved for use on AWS. making any code changes. Its typically measured by downtime hours per year. After rehosting or replatforming your application to AWS, Migration Hub Refactor Spaces can help you eliminate the undifferentiated work of building and operating AWS infrastructure for incremental refactoring. A migration strategy is the approach used to migrate a workload into quickly or address customer needs and demands. As the migration approach fully leverages cloud-native capabilities, its mostly leveraged for workloads that require enhanced application performance and user experience while minimizing operational overheads. Maintenance costs. To maximize the benefits of moving to the cloud, you need to give your teams the freedom and agility to innovate, but also enforce controls to protect your organization from risk. Javascript is disabled or is unavailable in your browser. Cloud providers allow you to flag specific virtual machines, volumes and instances so that they can't be deleted unintentionally. Storage Gateway provides four different types of gateways: Amazon S3 File Gateway, Amazon FSx File Gateway, Tape Gateway, and Volume Gateway. The main steps of replatforming include: Firstly, we need to analyze the application. "zX This strategy is also known as lift, tinker, and shift or are a few services provided by AWS to rebuild parts of the applications. Part 1 A Practical Guide to Understanding the 6Rs for Migrating to AWS, Part 2 Migrating to AWS Method 1 Repurchasing, aka Drop-and-Shop, Part 3 Migrating to AWS Method 2 Rehosting, aka Lift-and-Shift, Part 5 Migrating to AWS Method 4 Refactoring, aka Cloud Native. Most reports single out three prominent leaders: Amazon Web Services (32% market share), Microsoft Azure (18.6% market share), and Google Cloud Platform (8.5% market share). Prior to joining AWS, Stephen was the CIO of Dow Jones, where he introduced modern software development methodologies and reduced costs while implementing a cloud-first strategy. A strong migration plan starts with a deeper understanding of the interdependencies between applications, and evaluates migration strategies to meet your business case objectives. With the replatform strategy, an enterprise can move an application to AWS while employing some form of platform optimization to leverage cloud-native capabilities. All rights reserved. Here you might make a few cloud (or other) optimizations in order to achieve some tangible benefit, but you arent otherwise changing the core architecture of the application. With AWS Management and Governance services, customers dont have to choose between innovation and controlthey can have both. The budget varies depending on many factors from application complexity to the migrating team's skill and existing toolset. Additionally, certain data retention regulations for security and privacy compliance also enforce retention. Network changes, data migration, and . Relocating minimizes downtime and disruption since clients remain seamlessly connected during the migration process. AWS Landing Zone solution helps you set up a secure, multi-account AWS environment based on AWS best practices. At this stage, youll move all data and users to the cloud infrastructure. 6. The following are common use cases for the retire strategy: There is no business value in retaining the application or moving it to cloud. For example, choosing off-the-shelf CRM as a customer relationship system. vendor. serverless service in the AWS Cloud. Time to deploy automated stacks and refine them. There has been no inbound connection to the application for the last Time to set up and prepare the target AWS account ready for Replatforming. Applications are easier to optimize or With rehost, you can migrate a large number of machines from multiple source platforms You can reduce costs by moving from a Microsoft Windows operating system to a Linux In the majority of the database migrations, you can choose to rehost, replatform, or refactor. AWS EMP for Windows Server User Guide to help you determine your selecting the NoSQL DynamoDB to replace MySQL) or poorly configuring the AWS service. choose to retain an application that is dependent on specialized hardware that does not xedqE+j(p4M 5^kGjE8%??/q?c~N Here are some common KPIs to measure before and after migration: Availability. VMware Cloud on AWS (VMC) allows you to quickly relocate hundreds of applications virtualized on vSphere to the AWS Cloud in just days and to maintain consistent operations with your VMware Cloud Foundation-based environments. VMware Cloud on AWS enables seamless bi-directional application migration with consistent policies by using vSphere vMotion between your on-premises data center and the AWS Cloud without converting or re-architecting any workload. accessibility from anywhere, no infrastructure to maintain, and pay-as-you-go pricing models. Get started by engaging with Migration Evaluator, which provides a total cost of ownership (TCO) projection for AWS based on your actual utilization of resources and our years of helping customers optimize their compute, storage, database, networking, and software licenses on AWS. This is when they determine whats in their environment, what are the interdependencies, whats going to be easy to migrate and whats going to be hard to migrate, and how theyll migrate each application. The strategies vary to suit specific use cases and can be chosen based on the technical capabilities and business requirements of an organization. You want to reduce the security risks of operating an application that uses an Create the infrastructure stack using the java-webapp-infra.yaml template (located in the 'config' directory of the repo). known as the 7 Rs: Common strategies for large migrations include rehost, replatform, relocate, and retire. It is possible to hand-craft Replatform an application, by clicking around the GUI and manually making changes and copies. The main business benefit of Replatforming is taking immediate, but modest, advantage of cloud by swapping common components -- and therefore benefiting from cost and performance improvements -- and improving on Rehosting without the risk, complexity, cost and time of a full Refactor. We've also found that applications are easier to optimize/re-architect once they're already running in the cloud. AWS support for Internet Explorer ends on 07/31/2022. Cloud migration for enterprises refers to the process of moving applications and data into the cloud from legacy systems. need to extract some tables (such as customer information, patient, or patient diagnosis DataSync does full initial copies, incremental transfers, and the verification of transferred data. Will migration make the product more accessible for end-users? Suitable for applications running on VMware servers and local Kubernetes distributions, For organizations looking to expedite cloud migration at a fraction of the cost, while looking to eventually add further changes, For organizations considering a move to AWS cloud but are concerned about the risks involved in comprehensive migration of legacy apps in one go, Organizations looking to leverage cloud-native capabilities without having to design systems from scratch. Replatforming involves making a few cloud optimizations during migration -- shaping the application towards being cloud-native. Scalability. Know Your Estate The first step of your migration process involves developing a workload inventory that includes all the virtual machines and servers to be considered for migration. Set up access levels for your team to make sure the right people get the right files to work with. << /Length 8 0 R /Filter /FlateDecode /Type /XObject /Subtype /Form /FormType Migrate the platform. By redesigning the application Please refer to your browser's Help pages for instructions. You may opt-out by. Infrastructure stack outputs: Deploy database CloudFormation template Log in to the AWS Management Console and open the CloudFormation service. architecture of your application. And to transfer files directly into or out of Amazon S3 using the Secure File Transfer Protocol (SFTP), File Transfer Protocol over SSL (FTPS), and File Transfer Protocol (FTP), we have AWS Transfer Family. I suggest starting with something on the low-complexity end of the spectrum for the obvious reason that it will be easier to completewhich will give you some immediate positive reinforcement or quick wins as you learn. Here are the strategies you can use for application migration. The strategy also employs limited scaling, making migration costs more predictable. Log in to the AWS Management Console and open the CloudFormation service. your users, and your infrastructure. services, and scale the application more easily. Once done, start examining what cloud providers are out there on the market and which one is right for you. It gives some immediate and modest cloud benefits without too much change and risk. Retain. AWS offers cloud migration services across all regions where Amazon EC2 instances are available. CloudEndure Migration, AWS VM Import/Export), although some customers prefer to do this manually as they learn how to apply their legacy systems to the new cloud platform. The strategy allows enterprises to move an on-prem application and all its dependencies as-is to the AWS cloud. Before migrating to the cloud, there's a checklist of things to take into account. Migration Evaluator (Formerly TSO Logic) delivers accurate data-driven recommendations to right-size and right-cost compute. Cloud providers have their own automation tools: There are also many versatile solutions from software vendors. Mainframe or mid-range applications and non-x86 Unix migrate and operate your workload in the cloud because it does not impact the overall For more information, see Best practices for assessing applications to be retired during a migration to the AWS Cloud. Cloud Migration Strategy - Rehost, Replatform, Repurchase, Refactor, Reachitect, Retain, Retire for any cloud such as Azure or AWS or GCP--- Small correction. eOcY|\G0(]z^?smW0cYl&yY_? Your operating model becomes an agile set of people, process, and technology that improves as you migrate more applications. To do a Replatform, you need a bit more than a Rehost across all the three vectors of budget, tools and timeline. Time to model the application using the automation software. If you can wire stuff together like a web app to a database, typical sysadmin stuff, then you can probably do Replatforming: For example, a common shaping activity during Replatforming is to just move your data and not your database to the cloud, and instead "migrate" to a managed relational database service such as Amazon Relational Database Service (RDS). You may be looking to reduce the amount of time you spend managing database instances by migrating to a database-as-a-service platform like Amazon Relational Database Service (Amazon RDS), or migrating your application to a fully managed platform like Amazon Elastic Beanstalk. You may be thinking, "What's new in this? Dependencies You might decide to retain an Our Migration Partner Solutions, such as RISC Networks, Cloudamize, ATADATA Deloitte, and Turbonomic, also provide deep discovery and planning tools. To use the Amazon Web Services Documentation, Javascript must be enabled. Enterprises typically decide to retain a workload if it relies on another application that needs to be migrated first or when theres no immediate business value in migrating the application to the cloud. Unresolved physical dependencies You might This is typically driven by a strong business need to add features, scale, or performance that would otherwise be difficult to achieve in the applications existing environment. During the application migration process, Control Tower dashboards provide continuous visibility into your AWS environment. Refactoring / Re-architectingRe-imagining how the application is architected and developed, typically using cloud-native features. 44 Replatform (Lift, Tinker & Shift) when organizations have outdated structures to move into IaaS cloud platforms. internal users. While each of these posts stands on its own, I believe they go better together. Migrating from on-premise to the cloud requires careful preparations on technical and business ends. Opinions expressed are those of the author. Using this knowledge, organizations can outline a plan (which should be considered subject to change as they progress through their migration and learn) on how theyll approach migrating each of the applications in their portfolio and in what order. Run an anti-deletion campaign. 2023 Cloudsoft Corporation Limited. Once youve discovered everything in your environment, you might ask each functional area who owns each application. example, you might replatform a Microsoft SQL Server database to Amazon RDS for SQL Server. Can you understand how a load-balancer works with a web server and make the connection, wire them together? endobj << /ProcSet [ /PDF ] /XObject << /Fm1 7 0 R >> >> Not every decision in a migration can be automated, but our tools help you make easier and better decisions. 5 0 obj Most companies use several applications on different servers and separate networking equipment. If you've got a moment, please tell us how we can make the documentation better. If you have VMware Cloud Foundation based environments, VMware Cloud on AWSallows you to quickly relocate hundreds of applications virtualized on vSphere to AWS in just days, while maintaining consistent operations with your on-premises environments. The goal is a successful Replatform, not an exotic one. endobj applications, at a given time from on-premises platform to a cloud version of the platform. Typically, the application vendor helps you with these activities for a smooth AWS Managed Services (AMS) operates AWS on your behalf, providing a production-ready enterprise operating model, on-going cost optimization, and day-to-day infrastructure management. Replatform reduces cost and improves performance by migrating to a managed or serverless With support for Secure File Transfer Protocol (SFTP), File Transfer Protocol over SSL (FTPS), and File Transfer Protocol (FTP), the AWS Transfer Family helps you seamlessly migrate your file transfer workflows to AWS by integrating with existing authentication systems, and providing DNS routing with Amazon Route 53 so nothing changes for your customers and partners, or their applications. As an example, a typical three-tier application that includes a load-balancer in a VM and a database layer in a VM can be adjusted to swap the load-balancer VM for an AWS managed load balancer, and the database VM for AWS managed Relational Database Service. If you've got a moment, please tell us how we can make the documentation better. removes the burden of managing and maintaining the infrastructure and helps reduce Cloud vendors offer well-documented and reliable backup solutions you can use for safe and convenient backups. Evgeniy is a specialist in software development, technological entrepreneurship and emerging technologies. Your existing software portfolio is a significant investment to consider when moving to the cloud. Prioritize migration components. The following are common use cases for the replatform migration strategy: You want to save time and reduce cost by moving to a fully managed service or Choose a single cloud or go multi-cloud. You have a legacy application that nobody knows how to maintain, or the source code is There are seven migration strategies for moving applications to the cloud, The configuration is duplicated/improved on a replacement cloud service such as replacing Nginx in a VM with AWS Elastic Load Balancer. The following are common use cases for the refactor migration strategy: The legacy mainframe application can no longer address the demand of the business due applications. Those providers offer all cloud models you might need and have convenient cost calculators to estimate the price of their services. If you have available network bandwidth, DataSync is the easiest approach to migrate file-based data. The first post in this series introduces the concept of a mass migration, which well simply refer to as migration throughout the series, and the second post of the series describes A Process for Mass Migrations to the Cloud. Repurchase. The process, as described by Amazon, encompasses five stages: Phase 1: Migration Preparation and Business Planning Phase 2: Discovery and Planning Phase 3: Designing the Migration Phase 4: Migrating and Validating Applications Phase 5: Operations While a well-executed transition offers numerous benefits, organizations must also factor in the risks and efforts required for ongoing maintenance.