SAP migration to AWS: GSN’s Cloud Modernization Journey

Customer Name : GSN Maschinen-Anlagen-Service GmbH

Partner Name : Onedata Software Solutions

Onedata Software Solutions helped GSN Services modernize its database infrastructure by adopting the AWS DMS for migrating its legacy SQL Server environment to a secure, highly available AWS RDS setup using Multi-AZ deployment, DMS, SCT, VPC, CloudWatch, CloudTrail, and IAM. The solution enhanced performance, improved reliability, reduced operational overhead, and ensured compliance with FinTech security standards.

About the Customer

Royal Medical Centers (RMC) is a healthcare organization operating digital medical platforms and online payment processing systems. The organization relies on AWS infrastructure to support web applications, backend services, and regulated payment workloads. As a PCI-regulated healthcare provider, RMC required a secure, compliant, and cost-efficient AWS environment to sustain long-term operations. 

The Challenge

Aging Infrastructure & High Costs : GSN’s on-premises servers were outdated and required frequent maintenance. Hardware failures caused unplanned downtime, and expanding capacity meant heavy capital expenditure. Maintaining these systems also tied up IT resources, increasing
operational costs.

Scalability & Performance Limits : The existing system struggled to handle growing transaction volumes, leading to slow query responses and delayed processes during peak periods. Scaling the infrastructure was complex and time-consuming. This limited GSN’s ability to support business growth and new services.

Backup, Security & Compliance Risks : Backups were manual or semi-automated, increasing the risk of data loss during outages. Limited encryption and weak access controls made it difficult to meet strict FinTech compliance requirements. Auditing and monitoring were also cumbersome, exposing the organization to regulatory risk.

The Partner Solution

That’s where Onedata Software Solutions stepped in. Our mission was to help GSN migrate from their legacy SQL Server setup to a fully managed, high-performance database environment without disrupting business operations.

Onedata designed a cloud architecture built for speed, security, and scale, using a suite of AWS-native services:

Amazon RDS (SQL Server) : RDS provided GSN with a fully managed SQL Server environment, eliminating the need to maintain physical servers. Multi-AZ deployment ensured high availability and automatic failover. Automated backups, patching, and encryption enhanced reliability and security.

AWS Database Migration Service (DMS) : DMS enabled smooth migration of on-premises data to RDS with minimal downtime. It supported both one-time data transfer and continuous replication. This allowed GSN to keep systems running during the migration process.

AWS Schema Conversion Tool (SCT) : SCT analyzed the existing SQL Server schema and converted it to be fully compatible with RDS. It minimized manual changes and reduced the risk of errors during migration. This ensured the database structure and queries worked seamlessly in the
cloud.

Amazon VPC : VPC created a secure, isolated network for RDS and migration components. Private
subnets and controlled routing ensured sensitive financial data remained protected. It also enabled secure connectivity between on-premises systems and AWS services.

CloudWatch and CloudTrail : CloudWatch monitored database performance and provided real-time alerts for operational issues. CloudTrail recorded all API activity, creating a complete audit trail. Together, they ensured performance visibility and regulatory compliance.

IAM Roles and Policies : IAM enforced least-privilege access to databases and migration resources. It restricted actions based on roles, ensuring only authorized personnel could access sensitive data. This strengthened security and helped meet FinTech compliance standards.

Results and Benefits

The transformation was immediate and measurable:

  • Zero Business Disruption: The entire migration was completed with near-zero downtime.
  • 40% Faster Performance: Optimized storage and compute power boosted
    query speeds.
  • Stronger Reliability: Multi-AZ architecture ensured automatic failover and resilience.
  • Lower Costs : GSN cut infrastructure and maintenance costs by eliminating on premises servers.
  • Enterprise-Grade Security : Encryption, IAM, and CloudTrail brought full visibility and compliance to FinTech standards.

With AWS managing scalability and resilience behind the scenes, GSN’s IT team can now focus on driving innovation and delivering better customer experiences.

About the Partner

Onedata Software Solutions helps businesses modernize their IT ecosystems with secure, scalable, and cost-efficient AWS solutions. As a trusted cloud transformation partner, Onedata specializes in database modernization, managed cloud services, and continuous optimization, enabling clients like GSN to innovate faster with confidence.

SAP migration to AWS: GSN’s Cloud Modernization Journey

Customer Name : GSN Maschinen-Anlagen-Service GmbH

Partner Name : OneData

Onedata Software Solutions helped GSN Services modernize its database infrastructure by adopting the AWS DMS for migrating its legacy SQL Server environment to a secure, highly available AWS RDS setup using Multi-AZ deployment, DMS, SCT, VPC, CloudWatch, CloudTrail, and IAM. The solution enhanced performance, improved reliability, reduced operational overhead, and ensured compliance with FinTech security standards.

About the Customer

Royal Medical Centers (RMC) is a healthcare organization operating digital medical platforms and online payment processing systems. The organization relies on AWS infrastructure to support web applications, backend services, and regulated payment workloads. As a PCI-regulated healthcare provider, RMC required a secure, compliant, and cost-efficient AWS environment to sustain long-term operations. 

The Challenge

Aging Infrastructure & High Costs : GSN’s on-premises servers were outdated and required frequent maintenance. Hardware failures caused unplanned downtime, and expanding capacity meant heavy capital expenditure. Maintaining these systems also tied up IT resources, increasing
operational costs.

Scalability & Performance Limits : The existing system struggled to handle growing transaction volumes, leading to slow query responses and delayed processes during peak periods. Scaling the infrastructure was complex and time-consuming. This limited GSN’s ability to support business growth and new services.

Backup, Security & Compliance Risks : Backups were manual or semi-automated, increasing the risk of data loss during outages. Limited encryption and weak access controls made it difficult to meet strict FinTech compliance requirements. Auditing and monitoring were also cumbersome, exposing the organization to regulatory risk.

The Partner Solution

That’s where Onedata Software Solutions stepped in. Our mission was to help GSN migrate from their legacy SQL Server setup to a fully managed, high-performance database environment without disrupting business operations.

Onedata designed a cloud architecture built for speed, security, and scale, using a suite of AWS-native services:

Amazon RDS (SQL Server) : RDS provided GSN with a fully managed SQL Server environment, eliminating the need to maintain physical servers. Multi-AZ deployment ensured high availability and automatic failover. Automated backups, patching, and encryption enhanced reliability and security.

AWS Database Migration Service (DMS) : DMS enabled smooth migration of on-premises data to RDS with minimal downtime. It supported both one-time data transfer and continuous replication. This allowed GSN to keep systems running during the migration process.

AWS Schema Conversion Tool (SCT) : SCT analyzed the existing SQL Server schema and converted it to be fully compatible with RDS. It minimized manual changes and reduced the risk of errors during migration. This ensured the database structure and queries worked seamlessly in the
cloud.

Amazon VPC : VPC created a secure, isolated network for RDS and migration components. Private
subnets and controlled routing ensured sensitive financial data remained protected. It also enabled secure connectivity between on-premises systems and AWS services.

CloudWatch and CloudTrail : CloudWatch monitored database performance and provided real-time alerts for operational issues. CloudTrail recorded all API activity, creating a complete audit trail. Together, they ensured performance visibility and regulatory compliance.

IAM Roles and Policies : IAM enforced least-privilege access to databases and migration resources. It restricted actions based on roles, ensuring only authorized personnel could access sensitive data. This strengthened security and helped meet FinTech compliance standards.

Results and Benefits

The transformation was immediate and measurable:

  • Zero Business Disruption: The entire migration was completed with near-zero downtime.
  • 40% Faster Performance: Optimized storage and compute power boosted
    query speeds.
  • Stronger Reliability: Multi-AZ architecture ensured automatic failover and resilience.
  • Lower Costs : GSN cut infrastructure and maintenance costs by eliminating on premises servers.
  • Enterprise-Grade Security : Encryption, IAM, and CloudTrail brought full visibility and compliance to FinTech standards.

With AWS managing scalability and resilience behind the scenes, GSN’s IT team can now focus on driving innovation and delivering better customer experiences.

About the Partner

Onedata Software Solutions helps businesses modernize their IT ecosystems with secure, scalable, and cost-efficient AWS solutions. As a trusted cloud transformation partner, Onedata specializes in database modernization, managed cloud services, and continuous optimization, enabling clients like GSN to innovate faster with confidence.

Latest case studies

Scroll to Top

🧭 Pre-Migration Support

Pre-migration support ensures the environment, data, and stakeholders are fully prepared for a smooth migration. Key activities include:

1. Discovery & Assessment
  • Inventory of applications, data, workloads, and dependencies
  • Identification of compliance and security requirements
  • Assessment of current infrastructure and readiness
2. Strategy & Planning
  • Defining migration objectives and success criteria
  • Choosing the right migration approach (Rehost, Replatform, Refactor, etc.)
  • Cloud/provider selection (e.g., AWS, Azure, GCP)
  • Building a migration roadmap and detailed plan
3. Architecture Design
  • Designing target architecture (network, compute, storage, security)
  • Right-sizing resources for performance and cost optimization
  • Planning for high availability and disaster recovery
4. Proof of Concept / Pilot
  • Testing migration of a sample workload
  • Validating tools, techniques, and configurations
  • Gathering stakeholder feedback and adjusting plans
5. Tool Selection & Setup
  • Selecting migration tools (e.g., AWS Migration Hub, DMS, CloudEndure)
  • Setting up monitoring and logging tools
  • Preparing scripts, automation, and templates (e.g., Terraform, CloudFormation)
6. Stakeholder Communication
  • Establishing roles, responsibilities, and escalation paths
  • Change management planning
  • Communicating timelines and impact to business units

🚀 Post-Migration Support

Post-migration support focuses on validating the migration, stabilizing the environment, and optimizing operations.

1. Validation & Testing
  • Verifying data integrity, application functionality, and user access
  • Running performance benchmarks and load testing
  • Comparing pre- and post-migration metrics
2. Issue Resolution & Optimization
  • Troubleshooting performance or compatibility issues
  • Tuning infrastructure or application configurations
  • Cost optimization (e.g., rightsizing, spot instance usage)
3. Security & Compliance
  • Reviewing IAM roles, policies, encryption, and audit logging
  • Ensuring compliance requirements are met post-migration
  • Running security scans and vulnerability assessments
4. Documentation & Handover
  • Creating updated documentation for infrastructure, runbooks, and SOPs
  • Knowledge transfer to operations or support teams
  • Final sign-off from stakeholders
5. Monitoring & Managed Support
  • Setting up continuous monitoring (e.g., CloudWatch, Datadog)
  • Alerting and incident response procedures
  • Ongoing managed services and SLAs if applicable