In one of our past projects, Pemcas undertook a critical feasibility study for the University of Galway’s data centre, focusing on energy efficiency and operational continuity. This project highlights the growing importance of sustainable, resilient IT infrastructure in educational institutions.

Challenges and Objectives

The primary challenge in this project was to enhance the efficiency of the existing data centre at the university without disrupting the ongoing operations of its IT systems. This task demanded a delicate balance between making significant upgrades and maintaining operational continuity. The focus was on improving energy efficiency, which was crucial given the growing demand for sustainable, cost-effective solutions across all industries.

However, equally important was ensuring minimal disruption to the university’s essential services. The objectives were clear: to assess the current state of the data centre, identify areas for improvement, and implement solutions that improve efficiency without hampering the day-to-day operations of the university’s IT systems.

PEMCAS’s Approach

We addressed this challenge with a comprehensive and innovative approach. The team commenced with a detailed on-site survey, which included in-depth thermal analyses of the data centre. The survey’s findings enabled us to provide valuable recommendations, focusing on network improvement and expansion. These recommendations were not just about enhancing efficiency; they also accounted for scalability and adaptability, ensuring the data centre could meet future demands.

Cooling System Recommendations 

Pemcas recommended a phased approach to upgrading NUIG’s cooling systems to minimise disruption. We advised keeping Room One operational, upgrading Room Two with high-efficiency downflow units and free-cooling chillers, and relocating Room Three’s servers to Rooms One and Two. This will require additional InRow cooling units in Room One. Replace the UPS power modules and batteries due to end-of-life issues.

New free-cooling chillers are advised to use external air to reduce energy use and environmental impact. These chillers, with advanced adiabatic systems, enhance seasonal efficiency and optimise water usage. The system is designed for low to medium density racks (3-6kW per rack) but may need reevaluation for higher density loads like IBM blade servers (7kW). These upgrades aim to significantly improve energy efficiency and cooling performance.

Airflow Graphical Analysis

IT Room 1 Airflow Graphical Analysis of the cooling System with 3kW heat load per Rack. IT Room 1 Existing System with InRow Cooling units highlighting hot and cold air mixing. The result is a buildup of heat in the red zone.

IT Room 2 Airflow Graphical Analysis of the cooling System with 3kW heat load per Rack. IT Room 2 Existing System with Downflow Units, highlighting hot and cold air mixing. The result is a buildup of heat in the room’s red zone.

IT Room 3 Airflow Graphical Analysis of the cooling System with 3kW heat load per Rack. IT Room 3 Existing System with Downflow Units, highlighting hot and cold air mixing. This result indicates a red-zone buildup of heat in the room.

Impact and Outcomes

The insights and recommendations derived from the study were instrumental in guiding discussions and decision-making at the university’s strategic level. As a result of the study, a clear path forward emerged, leading to the allocation of funding.

Following the funding allocation, the project moved into its next phase, which involved a public procurement process. This process was crucial in selecting the right vendors and partners to implement the proposed solutions. The commencement of implementation works marked a significant milestone in the project, transitioning from planning and strategy to actual execution.

Conclusion

The impact of the feasibility study extended beyond technical recommendations; it catalysed a series of actions that were critical to upgrading the university’s data centre, ultimately enhancing its efficiency and capacity to support the university’s growing needs.

Our work on this project demonstrates our expertise in balancing technological advancement with operational practicality, and we hope it sets a precedent for similar projects in the academic sector.
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For further information or inquiries, PEMCAS can be reached through the following channels:

• Portal House, Loughmore Ave, Raheen Business Park, Limerick, V94 FHX7, Ireland.
• Reach out to Ed. Murnane at e.murnane@pemcas.ie.
• Contact us at +353 (61) 498 900.

PEMCAS is committed to providing prompt and informative responses to all questions and concerns.