Migrating from On-Premises Servers to AWS EC2 Benefits and Step-by-Step Guide

Amazon EC2 gives you virtual servers in the cloud that you rent by the hour or second. This guide covers why teams move on-premises servers to EC2 and the four steps a migration usually follows. At the end we explain how CloudAid.net helps with AWS migrations.

Benefits of Migrating to AWS EC2

1. Cost Savings

On-premises infrastructure means paying up front for hardware, software licenses, and maintenance. Add redundancy and room to grow, and the bill climbs fast.

EC2 bills you for the resources you use. You scale up or down with demand, so you stop paying for idle capacity you bought “just in case.” Studies have shown that AWS EC2 can provide compute resources at up to 66% lower cost compared to on-premises servers.

2. Scalability and Agility

You can add or remove EC2 instances with a few clicks or an API call. Ordering, racking, and provisioning a physical server can take weeks or months.

That speed lets you absorb a traffic spike or launch a new application without waiting on hardware.

3. Reliability and Uptime

The Amazon EC2 service level agreement (SLA) commits to 99.99% monthly uptime at the region level, which applies when you run instances across two or more availability zones. A single instance has a lower commitment. Most organizations would find that level hard and expensive to reach in their own data centers.

You can spread EC2 instances across multiple availability zones in a region, so your application stays up if one data center goes down. For mission-critical workloads, that design keeps you clear of costly downtime.

4. Security and Compliance

EC2 ships with built-in security controls: virtual private cloud (VPC) isolation, network access control lists (ACLs), and security groups that act as virtual firewalls. AWS also gives you encryption for data at rest and in transit, plus tools for monitoring and logging.

AWS complies with industry standards such as HIPAA, PCI-DSS, and SOC. When you run on EC2, you inherit many of these compliance certifications, which takes work off your own security team.

5. Managed Services and Automation

AWS managed services cut the work of running infrastructure yourself. Instead of patching and maintaining your own databases, you can use Amazon RDS, which automates many of those tasks. AWS Lambda and AWS Fargate let you run code without provisioning or managing servers.

AWS CloudFormation lets you define infrastructure as code, and AWS Systems Manager handles patching and configuration across your instances, so you can deploy and manage applications the same way every time, at any scale.

Step-by-Step Migration Process

Migration can look daunting if your team has little cloud experience. Most projects follow four steps.

1. Assess

Start by deciding which applications and workloads should move. Build an inventory of your servers, applications, and the dependencies between them. Note performance requirements, security needs, and compliance obligations for each.

AWS Application Discovery Service and AWS Migration Evaluator can discover and map your on-premises resources for you.

2. Plan

Next, write a migration plan with timelines, resource requirements, and a prioritized list of applications to move.

Bring in IT, business users, and executive sponsors early. The plan should list risks and how you will handle them, along with how you will test and validate after the move.

3. Migrate

Pick a migration strategy for each application based on your needs and constraints:

• Rehosting (“lift and shift”): Moving applications to EC2 with minimal changes
• Replatforming: Making some optimizations to applications during the migration process
• Refactoring: Re-architecting applications to take full advantage of cloud-native services

AWS has tools for each approach. AWS Application Migration Service (MGN) handles lift-and-shift migrations, and AWS Database Migration Service (DMS) moves databases with minimal downtime.

4. Optimize

Once your applications run on EC2, keep watching performance, cost, and security, and keep adjusting.

Amazon CloudWatch and AWS Cost Explorer track the key metrics. Auto scaling and Spot Instances can cut costs further.

How CloudAid.net Can Help

Small and medium-sized businesses often lack in-house AWS experience. CloudAid.net specializes in AWS migration and has moved organizations across Canada to the cloud.

Our AWS certified team works with you from assessment and planning through execution and optimization. We help you build the business case for migration, including expected cost savings.

During the migration, our architects design a secure AWS environment sized to your workloads. We also train your internal teams so they can run it after handover.

After the move, CloudAid.net offers managed services and support with 24/7 monitoring, so your team can focus on the business while we handle day-to-day AWS operations.

Conclusion

If you’re considering a move to AWS EC2, contact CloudAid.net for a free consultation. We’ll assess your readiness, build a migration plan, and work with you through each step.