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IBM z/OS is a widely-used mainframe operating system designed for a stable, secure and highly available environment for running mission-critical applications.

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Turning MFT into a strategic asset: Centralized control of Connect:Direct on z/OS and distributed systems

By Jigdesh Sampath posted 3 days ago

  

For this regional bank, managed file transfer isn’t a back-office utility, it’s the circulation system of the institution. Every day, critical payment files, statements, regulatory reports and batch workloads move across iSeries, IBM Z and distributed systems. For nearly two decades, IBM Sterling Connect:Direct on z/OS has been the bank’s standard for secure, reliable file movement across these platforms, forming the backbone of its MFT estate.  

As the environment grew, so did the complexity. Hundreds of Connect:Direct nodes were spun up to support new applications and lines of business. App teams on the distributed side were rightly empowered to move fast, but that speed came at a cost to governance and manageability. 

The business challenge: Upgrades that took years 

The shared infrastructure team was accountable for keeping the Connect:Direct environment patched, secure and compliant. Each application group owned its own user acceptance testing (UAT) and regression cycle. Each upgrade required bespoke coordination and scheduling. Patches were applied cautiously, one node at a time, because there was no safe way to orchestrate concurrent changes at scale. This led to : 

  • Multi-year upgrade programs for a single release 

  • Significant “rush-to-wait” time as infra teams waited for multiple app teams to complete testing 

  • Rising operational risk as older nodes lagged on patches and configuration standards 

The bank needed a way to modernize MFT operations without disrupting a platform that had been stable for nearly 20 years. 

The solution: A centralized management plane for MFT 

The bank chose IBM Sterling Control Center Director (CCD) as the centralized management plane for its Connect:Direct deployments. IBM Sterling Control Center Director is designed to provide centralized management and monitoring of large-scale, distributed Connect:Direct environments, enabling administrators to manage upgrades, configurations and licensing from a single console.  

For this regional bank, Control Center Director became the foundation for a new way of working: 

  • Single pane of glass: The shared infrastructure team could see and manage all Connect:Direct nodes including those on z/OS and distributed platforms through a unified dashboard. 

  • Automated lifecycle management: Upgrades, maintenance, certificate rotation and configuration propagation were all orchestrated centrally, with remote execution to each node. 

  • Wave-based rollout model: Instead of upgrading nodes one by one, the team designed rollout “waves” that grouped servers logically. This enabled safe concurrency across the ~400-server estate while respecting business windows and risk appetite. 

The program was delivered collaboratively by the bank’s shared infrastructure team, IBM Technology Expert Labs, and the IBM Sterling product team. IBM experts helped the bank design the rollout strategy, establish best practices for configuration and automation for their specific environment. 

The results: Years of work compressed into six months 

The bank now transformed how it manages its MFT backbone. 

  • Time-to-upgrade compression: The bank upgraded the entire ~400-server Connect:Direct estate in about six months, a program that historically would have stretched over several years. 

  • Operational efficiency: Dependence on IBM Technology Expert Labs for day-to-day upgrades dropped materially. The shared infrastructure team reclaimed time previously spent on coordination and manual execution. 

  • Stronger risk and governance: Centralized automation brought consistency to patching and configuration, making it easier to demonstrate control to auditors and internal risk teams. 

  • Better process insight: Data from IBM Sterling Control Center Director showed where the real constraints were, helping the bank streamline workflows and challenge long-held assumptions about bottlenecks. 

Why IBM: A trusted MFT backbone, now easier to run at scale 

IBM Sterling Connect:Direct has been the bank’s trusted file transfer solution for around 20 years, uniquely bridging z/OS and iSeries with distributed systems while providing secure, high-volume transfer capabilities.  

By adding IBM Sterling Control Center Director, the bank didn’t have to rethink its MFT standard. Instead, it gained the single, centralized control plane the shared infrastructure team needed to manage at scale with confidence. 

What began as an upgrade initiative has become a strategic platform for ongoing automation. The bank is now exploring how the same patterns can support future Connect:Direct releases, new environments and broader adoption of the IBM Sterling Managed File Transfer portfolio.

Regional Bank on Sterling Connect Direct z/OS and Sterling Control Center Director
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