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Why Retiring Your IBM i and IBM Z is a Mistake

Rebecca Dilthey

In the fast-paced world of IT, it's not uncommon for CIOs to consider retiring older systems like IBM i and IBM Z. They might think these technologies are outdated or fail to recognize their full benefits. However, these robust platforms remain invaluable to IT organizations, hosting crucial applications such as customer order processing, financial transactions, production and inventory control, and payroll.

To fully explore why IBM Z mainframes and IBM i systems are still the best choices for critical operations and deliver exceptional long-term value in the IT ecosystem, read their respective whitepapers:

The Rockstar in Your Data Center: The IBM i Platform

The Rockstar in Your Data Center: The IBM Z Mainframe

Debunking the Myth of Outdated Technology

The Real Value of Legacy Systems

Many see IBM i and IBM Z as relics of a bygone era, but this perspective overlooks their true value. These systems have been continuously updated to incorporate the latest advancements in technology, making them powerful tools for modern businesses. Their ability to handle high-volume tasks with unmatched efficiency is what sets them apart.

Modernization Without Disruption

One of the key strengths of IBM i and IBM Z is their ability to modernize without the need for disruptive re-platforming. This means businesses can update their systems to meet current needs while maintaining operational continuity. With features like integrated security and high-level machine interfaces, these platforms offer a seamless upgrade path.

Compatibility with Contemporary Technologies

IBM i and IBM Z are not just compatible with modern technologies; they excel at integrating with them. From cloud computing to open-source tools, these systems are designed to work in harmony with contemporary tech stacks, making them versatile assets for any IT organization.

Why IBM Z Mainframes Are Still Irreplaceable

To discover why this highly rated powerhouse is truly irreplaceable, read the full whitepaper to uncover the unbeatable performance, bulletproof resource management, and superior security IBM Z mainframes offer.

Exceptional Performance

IBM Z mainframes are built to handle massive workloads effortlessly. They can process up to 2.5 billion transactions in a single day, which is equivalent to handling 100 Cyber Mondays on one system. This level of performance is crucial for businesses that rely on real-time data processing.

Unmatched Security

Security is a top concern for any IT operation, and IBM Z mainframes offer unparalleled levels of protection. Designed to ensure the isolation of workloads, these systems protect against attacks, deliver continuous service, and mitigate downtime. Their architecture is built for infallible reliability, making them the gold standard in secure computing.

Cost Efficiency

Contrary to popular belief, IBM Z mainframes are not expensive to maintain. In fact, they offer a lower total cost of ownership (TCO) compared to distributed x86 servers. Their centralized architecture allows for efficient resource utilization, reducing both operational costs and energy consumption.

The Undeniable Strengths of IBM i Systems

The IBM i platform is known for its legendary reliability, adaptability for innovation and problem-solving, and its low total cost of ownership, but to uncover its full strength, read the whitepaper.

Robust ROI

IBM i systems deliver an unmatched return on investment. Their longevity and reliability mean that businesses can depend on them for years, if not decades, without the need for frequent upgrades or replacements. This makes them a cost-effective solution for long-term IT strategies.

Empowering Modern Developers

IBM i systems are designed to attract and empower modern developers. They support a wide range of open-source languages, databases, and development tools, enabling developers to use the technologies they are most comfortable with. This flexibility helps in attracting innovative programmers and retaining top talent.

Resilience and Adaptability

IBM i systems are renowned for their resilience and adaptability. They can handle volatility, scale with business growth, and integrate seamlessly with other systems. This makes them ideal for businesses that need a reliable and adaptable IT infrastructure.

Practical Applications of IBM Z and IBM i:

1. Customer Order Processing:

- IBM Z and IBM i excel at customer order processing, ensuring quick and accurate transactions, boosting customer satisfaction and efficiency.

2. Financial Transactions:

- Financial institutions rely on IBM Z and IBM i for secure and efficient transaction processing, thanks to their robust security and high speeds.

3. Production and Inventory Control:

- For manufacturing and distribution companies, IBM i and IBM Z offer reliability and scalability for effective production and inventory control, ensuring smooth operations and optimized inventory levels.

4. Payroll Management:

- IBM Z and IBM i are ideal for managing payroll, processing large data amounts quickly and securely for accurate and timely payments.

The Future of IBM Z and IBM i:

Read the full whitepapers to understand why IBM Z mainframes and IBM i midrange systems are the best choices to be the bedrock for critical operations, and why, over the long term, they deliver among the best value in the IT ecosystem.

The Rockstar in Your Data Center: The IBM i Platform

The Rockstar in Your Data Center: The IBM Z Mainframe

- Continuous Innovation: IBM is dedicated to innovating Z and i systems, ensuring they meet the evolving needs of modern businesses with regular updates.

- Integration with AI and Cloud: AI and cloud integration with IBM Z and IBM i enhances their capabilities, making them more valuable for businesses.

- Supporting Digital Transformation: IBM Z and IBM i are equipped to support digital transformation initiatives by integrating with modern technologies and handling complex workloads.


In a world where technology is always evolving, it's easy to overlook the value of legacy systems like IBM i and IBM Z. However, these platforms offer unmatched performance, security, and cost efficiency, making them essential for mission-critical applications. By integrating modern technologies and continuous innovation, IBM ensures these systems remain relevant and powerful tools for businesses. If you're thinking of retiring your IBM i or IBM Z, think again—these systems are not just surviving; they're thriving.

Ready to see the full potential of IBM i and IBM Z for your business? Learn how these systems can transform your IT operations and drive success by reading the full whitepapers.

The Rockstar in Your Data Center: The IBM i Platform

The Rockstar in Your Data Center: The IBM Z Mainframe