In the dynamic world of enterprise software, few transformations have been as significant as the story of SAP’s relationship with Linux. What began as an underground project in the late 1990s became a cornerstone of modern SAP operations. This remarkable journey not only changed SAP’s technological trajectory, but also helped establish Linux as a credible platform for mission-critical business applications.
Beginnings in the underground
In 1998, when most corporate systems ran on proprietary variants of Unix or Windows NT, two SAP engineers were secretly working on something revolutionary. Christoph Roland and Harald Kuck had a vision that seemed almost radical at the time: running SAP R/3, the company’s flagship ERP system, on Linux. Roland, who discovered Linux at university in 1993, was convinced of its potential. Working in Harald Kuck’s development team, he began porting SAP’s network library to Linux as a side project.
The project began modestly - Roland simply asked his manager, Kuck, for a second hard drive to run Linux on. What started as a simple experiment gradually grew into a full-scale porting project. One crucial element was still missing: the database layer. The breakthrough came in 1998, when major database vendors began announcing support for Linux.
The race to CeBIT 1999
The story took a dramatic turn in January 1999, when Kuck presented the idea to SAP co-founder Hasso Plattner. Despite initial scepticism about support and stability, Plattner was won over by the potential of open source as a development model. With just six weeks until CeBIT 1999, the world’s largest technology trade fair, the team set out on an ambitious plan to announce their project.
The reaction from hardware partners was overwhelming. Compaq, which did not have its own operating system, was particularly enthusiastic, showering the team with high-end servers. Within a week, all the major hardware manufacturers had declared their support - a turn of events that surprised even the project’s most optimistic supporters.
Impact on the industry
The announcement at CeBIT 1999 sent shockwaves through the enterprise software world. SAP became the first major ERP vendor to adopt Linux, adding crucial corporate credibility to the open-source system. This move was particularly significant given the widespread scepticism about Linux’s reliability for mission-critical business applications.
Technical contributions to Linux development
A lesser-known fact is how SAP’s requirements helped shape Linux itself. Christoph Roland made a significant contribution to the Linux kernel, particularly in the implementation of shared memory - a technology that later became crucial for cloud computing. The tmpfs filesystem, now used in containers and Android devices, was originally written to optimise SAP’s performance on Linux.
These contributions helped establish Linux as a robust platform for enterprise applications, paving the way for its current dominance in cloud computing.
Jacek Bugajski’s perspective: the story of an SAP Basis consultant
Jacek Bugajski, one of SNOK’s founders, entered this transformative period at just the right time. Beginning his journey in SAP Basis in 2000, Jacek witnessed a transitional period when SAP installations were split between Unix servers and Windows NT. His timing was excellent - he entered the industry right as Linux was starting to prove its worth as a platform for SAP systems.
What set Jacek apart during this period of transformation was his solid grounding in Unix and Linux systems, gained during his university studies. His early experience with Linux at Wrocław University of Technology, where he experimented with various distributions and learned the fundamentals of system administration, proved invaluable in an SAP context. This academic knowledge, combined with hands-on experience working with large Unix systems in a corporate environment, created a unique combination of skills that fitted perfectly with the coming era of Linux dominance in SAP.
His knowledge of Unix system architecture, gained from working with various Unix variants, proved particularly valuable. Understanding of process management, file systems, memory and security in a Unix environment provided a solid foundation for working with Linux. Concepts such as multithreading, shared memory management and inter-process communication mechanisms, which were crucial in large Unix systems, proved equally important in a Linux environment for SAP.
At the time, SAP installations typically ran on large Unix servers from vendors such as HP, IBM and Sun Microsystems, or on Windows Server. The landscape was complex, with various Unix variants requiring specific expertise. This fragmentation was one of the key challenges that Linux ultimately helped resolve. Today, Jacek, in his role as Partner at SNOK, focuses on demonstrating to clients the added value of running SAP on SUSE Linux. This distribution offers a wealth of specialised tools and additional options for the secure operation of complex SAP applications.
The rise of SAP HANA and Linux exclusivity
The relationship between SAP and Linux reached its peak with SAP HANA, SAP’s in-memory database platform. In a decisive move, SAP made HANA exclusively available on Linux, marking a complete transformation from the days when Linux was regarded as an experimental platform.
This decision reflected both Linux’s technical advantage in high-performance computing and its maturity as an enterprise platform. The journey from that underground project in 1998 to Linux exclusivity for SAP’s flagship database platform represents one of the most successful technology transformations in the history of enterprise software.
SNOK: a leader in SAP Basis and SLES expertise
Within this evolving landscape, SNOK has established itself as a leading force in SAP Basis in Poland, particularly in expertise around SUSE Linux Enterprise Server (SLES) for SAP. SNOK’s journey mirrors the broader adoption of Linux in SAP environments, progressing from early adoption to mastery of the platform.
SNOK’s expertise in SLES for SAP is particularly notable. SLES has become the platform of choice for many SAP installations due to its optimisation for SAP workloads and tight integration with SAP requirements. SNOK’s deep understanding of both the technical and business aspects of running SAP on Linux has made it a trusted partner for organisations navigating the complexities of modern SAP infrastructure.
Its leadership in this area is demonstrated through successful deployments for numerous enterprise clients, where SNOK has applied its comprehensive knowledge of SLES for SAP to optimise performance, ensure reliability and maintain security. This expertise has become increasingly valuable as more organisations migrate their SAP systems to Linux platforms, particularly with the growth of SAP HANA deployments.
“Linux has become the foundation of modern SAP systems, and that is no accident,” says Jacek Bugajski, President of SNOK. “Looking back at the last 20 years of my work in the SAP space, I have seen Linux evolve from an alternative platform into an absolute industry standard. Today, when we talk about SAP HANA, cloud-native environments or KVM virtualisation, Linux is not just a choice - it is a necessity.”
The company’s founder also draws particular attention to the role of KVM (Kernel-based Virtual Machine) in modern SAP environments: “KVM virtualisation is another example of the maturity of the Linux ecosystem. At SNOK we see growing interest in this technology among our clients, particularly in the context of cost optimisation and increased flexibility of SAP infrastructure. KVM, being an integral part of the Linux kernel, delivers performance close to that of physical systems, which is crucial for demanding SAP HANA environments.”
“Our day-to-day work at SNOK focuses on ensuring that our clients’ systems run optimally in a Linux environment. This is not just about basic administration - we are talking about advanced optimisation, monitoring and automation. Thanks to the tools available in the Linux ecosystem, we can offer solutions that would have seemed impossible just a decade ago.”
The experienced expert also emphasises the importance of continuous competency development: “At our company we invest significant resources in developing Linux expertise, particularly in the SAP context. Every new release of SLES for SAP Applications brings new opportunities for optimisation and security. Our engineers must always stay one step ahead, because that is what our clients expect of us.”
“Looking to the future,” continues SNOK’s founder, “I see an even greater role for Linux in enterprise digital transformation. The growth of hybrid cloud, containerisation, automation - all these trends are built on Linux. For us at SNOK, this means continuously expanding our expertise and building new solutions to help our clients through this transformation.”
The expert, with more than 20 years of experience, also points to the economic dimension: “Choosing Linux is not just a technological matter - it is also a sound business decision. Standardisation on a single platform, the ability to automate, access to innovative open-source solutions - all of this translates into real savings for our clients. At SNOK, we help them make the most of these opportunities.”
The future
Today, the decision to adopt Linux appears visionary. As cloud computing has become the dominant paradigm in enterprise IT, Linux’s position as the platform of choice for cloud infrastructure has made it indispensable. Linux’s early adoption by SAP and the contributions made to its development helped pave the way for this transformation.
The journey from an underground project to the foundation of modern SAP operations illustrates how visionary technical decisions, combined with careful execution, can transform entire industries. The story of Linux in SAP is not just about technology - it is about seeing potential where others saw risk, and about the power of open source to transform enterprise software.
For companies like SNOK, this transformation has created opportunities to build deep expertise in critical areas of corporate IT. As SAP continues to evolve, with initiatives such as SAP HANA and cloud deployments, the importance of Linux expertise only grows. The foundation laid by these early pioneers - from the SAP developers who first ported R/3 to Linux, to the SAP Basis administrators who helped make it enterprise-ready - continues to shape the future of high-performance computing for SAP applications.