The Efficiency and Performance Revolution with Pegasus ARM Architecture

Pegasus Airlines and Information Systems: The Efficiency and Performance Revolution with ARM Architecture

The Story of a Strategic Transformation

In an industry like the airline industry, where volumes are high and profit margins are competitive, technological superiority is not only a tool for operational efficiency but also a strategic competitive advantage. To further advance its market leadership, Pegasus Airlines proactively transformed increasing demand into an opportunity, rather than viewing it as a problem. Anticipating the potential of its existing infrastructure to constrain future growth, the bold move to adopt an ARM architecture aimed to go beyond mere technological modernization: to build an infrastructure that would differentiate itself by reducing operational costs, improving the customer experience, and adhering to sustainability goals. This success story demonstrates how a forward-thinking technology vision translates into measurable business results and market leadership through the strategic partnership established with Bilgi Birikim Sistemleri and HPE.

The Challenge of Growth: The x86 Architecture on the Edge of Sustainability

For a high-growth airline like Pegasus, technology infrastructure is not a cost center, but the engine of commercial operations. The x86 architecture, once a reliable workhorse, was no longer a fuel for this engine but a bottleneck to growth. This situation threatened not only system performance but also the availability and affordability Pegasus offered its customers. As stated by Hayrettin Göleli , Director of Critical Systems and Business Continuity , the existing x86 architecture was no longer capable of meeting Pegasus's growth targets.

The key strategic challenges faced by Pegasus were:

Increased Transaction Volume: Growing operations and increasing customer demand for digital channels were exponentially increasing the processing load of critical applications. This challenged the x86 architecture's ability to maintain consistent performance, especially during peak periods.
High Power Consumption: Business-critical applications that require immediate and intensive CPU power, such as the “flight search function,” were significantly increasing energy consumption and therefore the Total Cost of Ownership (TCO).
Operational Costs: Rising energy consumption and infrastructure maintenance and management expenses were putting increasing pressure on operational profitability, particularly the basis of the low-cost carrier business model.

These challenges posed a concrete obstacle to Pegasus's future growth and efficiency goals and necessitated the search for a proactive solution to future-proof the infrastructure.

Strategic Decision and Meticulous Preparation Process

Adopting a new architecture like ARM as a pioneer in a mission-critical system is a high-risk endeavor. Pegasus managed this risk not by chance, but through a rigorous, data-driven validation process that serves as a model for strategic technology adoption. This process demonstrates that the IT team is making a conscious investment in the company's future, not just a technological refresh.

This methodical preparation process behind the decision to migrate to ARM architecture included the following steps:

Comprehensive Assessment: Pegasus IT team conducted a strategic needs analysis that clearly outlined the necessity and direction of change by deeply analyzing the performance bottlenecks of the existing infrastructure and future business needs.
Performance and Stability Tests: Following the theoretical analysis, HPE Turkey and Bilgi Birikim Sistemleri conducted extensive performance and stability tests simulating the most demanding workloads on HPE RL300 ARM-based servers, with expertise from HPE Turkey and Bilgi Birikim Sistemleri. These tests provided concrete evidence that the new architecture would meet Pegasus's stringent performance expectations, forming the basis for the decision.
Planning and Resource Allocation: With the test results clearly confirming the potential benefits, the necessary budget and resource planning for the project was made and final approval was given for the project to be implemented.

Thanks to this careful planning, the complex steps of hardware procurement, installation, configuration, and migration of the commercially critical flight search function to the new infrastructure were successfully completed in just three months.

Solution Architecture: The Role of the HPE and Information Systems Partnership

The success of a strategic technology transformation depends not only on selecting the right technology but also on working with partners who possess the expertise to implement it. By combining HPE's global experience and Bilgi Birim Sistemleri's local integration capabilities, Pegasus laid a solid technological foundation for the project.

The contributions of business partners to the project and the reasons for their preference are as follows:

*Business Partner*	*Contribution to the Project and Reason for Selection*
HPE	Its deep-rooted global experience and proven hardware quality in the field of ARM-based servers were decisive in the technology selection phase of the project.
Information Systems	It provided uninterrupted and expert support throughout the hardware procurement, installation, and integration processes. It conducted performance measurements and made optimal configuration recommendations. Post-project maintenance support made a critical contribution to ensuring seamless operational continuity.

This strong and synergistic business partnership was the key driving force behind the project not only progressing as planned but also achieving the targeted strategic successes.

Measurable Success: Concrete and Strategic Gains of the Project

The true value of every strategic investment is demonstrated by the measurable returns it delivers on business objectives. Pegasus's ARM architecture migration project demonstrated the effectiveness of its technology investment, with tangible results that directly impact the company's profitability, operational resilience, and brand reputation.

The main quantitative gains and strategic impacts of the project are:

40% Energy Savings: This significant efficiency gain not only improved the company's profit margin by reducing direct operational costs, but also solidified Pegasus's ESG (Environmental, Social, and Governance) goals, strengthening its corporate reputation and investor relations. This achievement is a direct solution to the "High Power Consumption" issue mentioned in section 1.
4X Capacity Increase: This increase is more than just a technical metric; it's a capability that directly supports commercial strategies. By providing customers with a seamless and fast experience, even during peak demand periods like holidays and campaigns, Pegasus prevented revenue loss and maximized customer satisfaction. This eliminated the "Increased Transaction Volume" bottleneck identified in section 1.
Annual Operational Cost Savings: Annual savings achieved through energy efficiency and optimized infrastructure have a direct positive impact on the company's overall profitability, reinforcing the sustainability of its low-cost business model.

Beyond these numerical achievements, the project also provided significant strategic benefits to the company:

Infrastructure Flexibility: The efficiency achieved in resource utilization has enabled the IT team to plan for future needs in a much more flexible and predictive manner, making the infrastructure ready for the future.
Environmental Sustainability: Reducing carbon footprint by reducing energy consumption has strengthened Pegasus's position as a responsible and environmentally friendly brand.
Institutional Competency Development: The project made a valuable contribution to the institution's intellectual capital and innovation capacity by enabling employees to gain competence in next-generation technologies such as ARM architecture.

Ultimately, this project is a shining example of how the right technology vision, meticulous planning, and strategic partnerships can create a powerful competitive advantage. With this step, Pegasus has not only addressed today's challenges but also laid a solid foundation for future innovation, solidifying its identity as a technology-focused airline.