From AS400 to the Cloud: Navigating the Future of IT Infrastructure

Author: Serge Desloover

Account Manager @Quistor

In a recent webinar titled "AS400 I Series to the Cloud," I had the pleasure of discussing the historical context of the AS400 (now known as IBM Power Systems) and the strategic advantages of migrating to cloud solutions. Alongside cloud experts Luis Mediero and Robert Zande, we explored the evolution of the AS400, the benefits of cloud migration, and practical guidance for organisations considering the shift from on-premises systems to cloud environments.

The Legacy of AS400

The AS400 platform, introduced by IBM in 1988, was revolutionary for its time. It integrated hardware, operating systems, and databases into a single package. Over the years, it has evolved through various hardware iterations and naming conventions (from AS400 to iSeries to IBM Power Systems), reflecting IBM's commitment to innovation in mid-range computing. However, while the AS400 remains relevant, its legacy technologies pose challenges for modern businesses that require agility and adaptability.

Organisations still using AS400 systems often face issues related to outdated applications, reliance on legacy programming languages like RPG, and a dwindling pool of skilled professionals familiar with these technologies. The complexity of legacy systems can hinder digital transformation efforts, making cloud migration an appealing option for modernising IT infrastructure.

Advantages of Cloud Migration

Migrating to the cloud offers significant cost advantages, including a pay-as-you-go model that reduces upfront investments. Furthermore, cloud providers typically have robust security measures in place, which can exceed the security capabilities of traditional on-premises systems. This shift alleviates concerns about data handling and security compliance. Cloud platforms also allow organisations to scale resources quickly to meet fluctuating demands, a substantial improvement over the lengthy processes associated with acquiring and integrating new hardware in on-premises environments. The ability to provision resources with just a few clicks enhances operational agility.

The Migration Process

During the webinar, we highlighted the migration process from the AS400 to cloud platforms, outlining critical considerations, best practices, and the significance of conducting a thorough discovery phase to ensure a successful transition. Before embarking on a cloud migration journey, conducting a thorough discovery process is crucial. This phase identifies current system configurations, evaluates application dependencies, and assesses data integrity. The results from this analysis are vital in crafting a comprehensive migration strategy and providing a clear picture of the costs involved. Quistor performs these Discoveries almost on a monthly basis and so has the experience and very effective and efficient way of working to make your discovery successful.

Advanced migration tools such as Oracle's Cloud Data Migration (CDM) tool leverage GoldenGate technology for minimal downtime during data transfers. This capability allows organisations to maintain operational continuity, significantly streamlining the migration process while ensuring that data remains synchronised and up-to-date. The need for expert guidance is emphasised, as organisations navigate the complexities of transitioning from on-premises systems to cloud solutions. Partnering with knowledgeable consultants can help businesses mitigate risks, avoid common pitfalls, and ensure a seamless transition to cloud-based infrastructure, ultimately leading to improved operational efficiency and enhanced business outcomes.

Conclusion

The webinar provided a comprehensive overview of the historical context and current challenges of the AS400 system, alongside the strategic benefits of cloud migration. By understanding the nuances of both legacy systems and modern cloud solutions, organisations can make informed decisions that pave the way for future success in an increasingly digital landscape.

Webinar Recording

For those who missed the live session, I highly recommend watching it to gain deeper insights and practical advice on transitioning from AS400 to the cloud.

In case you would like to have more information about Quistor´s discovery approach, please contact me.

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