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Is It Time to Modernize Your AS400 System with Cloud Migration?

The AS400, also referred to as the IBM iSeries, has played a vital role in the realm of business computing for numerous years. Nonetheless, as technology advances, numerous organizations find themselves compelled to update their AS400 systems. One viable solution gaining traction is AS400 cloud migration. In this blog post, we'll explore the reasons behind this shift, the benefits it offers, and the steps to successfully migrate your AS400 to the cloud.

Why Migrate AS400 to the Cloud?

Cost Savings: One of the primary motivations for migrating AS400 to the cloud is cost reduction. On-premises AS400 systems require substantial investments in hardware, maintenance, and physical space. On the other hand, cloud-based solutions provide pricing models based on pay-as-you-go, removing the necessity for capital expenditures.

Scalability: Cloud platforms provide scalability that can be difficult to achieve in on-premises environments. Migrating AS400 to the cloud empowers you to effortlessly adjust your resource allocation according to your organization's requirements, guaranteeing peak performance without unnecessary over-provisioning.

Enhanced Security: Cloud providers invest heavily in security measures, often surpassing what many organizations can afford to implement on their own. AS400 Migration to the cloud can improve your system's security posture.

High Availability: Cloud platforms offer robust high-availability options, reducing downtime and ensuring business continuity. This is particularly important for mission-critical AS400 applications.

Modernization: AS400 systems can be notoriously challenging to integrate with modern technologies. Moving to the cloud provides an opportunity to modernize your applications, making them more accessible and efficient.

Steps to AS400 Cloud Migration:

Assessment and Planning: Start with a thorough assessment of your current AS400 environment. Identify which applications and data are suitable for migration and create a detailed migration plan. Consider factors like data migration, application compatibility, and security requirements.

Choose a Cloud Provider: Select a cloud provider that aligns with your organization's needs. AWS, Azure, and Google Cloud are popular options, each offering a range of services suitable for AS400 migration.

Data Migration: Migrate your AS400 data to the cloud using appropriate tools and methods. Ensure data integrity and consider using database-as-a-service (DBaaS) solutions for seamless integration.

Application Migration: Determine the best approach for migrating AS400 applications. This may involve rehosting, refactoring, or rearchitecting depending on your requirements. Embrace cloud-native technologies where applicable.

Testing: Rigorously test your migrated applications and data to ensure they function correctly in the cloud environment. Address any issues promptly.

Security and Compliance: Implement robust security measures and compliance controls in the cloud environment to protect your AS400 data and applications.

Training and Documentation: Train your staff on the new cloud-based AS400 environment and ensure proper documentation for future reference.

Monitoring and Optimization: Implement monitoring and management tools to keep an eye on the performance and cost of your AS400 systems in the cloud. Continuously optimize your resources to maximize efficiency.


AS400 cloud migration offers a path to modernization, cost savings, and improved agility for organizations still relying on legacy AS400 systems. By carefully planning and executing the migration process, you can unlock the full potential of your AS400 applications and data in a cloud environment. Embrace this transformation to stay competitive and resilient in an ever-evolving business landscape.

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