Knowledge & Reliability
Description

Modular High-Performance Data Center for Key National Research Infrastructure
PERUN
CLIENT
Slovak Academy of Sciences and Bull
The Slovak Academy of Sciences plays a central role in Slovakia’s scientific and technological development, coordinating fundamental and applied research across a wide range of disciplines. Participation in national and international research frameworks strengthens the country’s integration into the European research ecosystem. The Perun supercomputer represents a strategic national research infrastructure, enabling researchers to execute compute-intensive projects where sustained high performance, stability, and scalability are essential.
OBJECTIVE
To design and implement a high-performance modular data center with ensured high availability for national research infrastructure, capable of supporting the most demanding artificial intelligence processes and enabling the future expansion of the Perun supercomputing environment. The solution needed to accommodate high power densities characteristic of modern HPC environments, ensure energy-efficient and redundant cooling architecture, provide high availability and continuous operation, and enable modular scalability of future capacity within a predictable and time-optimized deployment framework.

PROJECT BACKGROUND
The Slovak Academy of Sciences (SAS) is the country’s leading public research institution. It conducts advanced research in the fields of natural sciences, engineering, biomedicine, and interdisciplinary computational sciences. With the deployment of the national supercomputer Perun, Slovakia is significantly strengthening its position in high-performance computing (HPC) within the Central European region. Perun provides large-scale computational capacity for scientific simulations, artificial intelligence, materials research, climate modeling, and data-intensive analytics. With the continuous growth of research activities and the increasing complexity and scale of computational workloads, the need emerged for a dedicated, highly reliable data center with ensured high availability, capable of supporting the next generation of HPC systems under stringent requirements for power density, thermal efficiency, redundancy, and operational resilience.
PROJECT RESULTS
To ensure long-term scalability and alignment with European research infrastructure standards, we, together with our partner Bull, delivered a robust and energy-efficient solution. The modular approach enables continuous capacity growth while minimizing infrastructure risks and optimizing deployment timelines. The Perun data center was delivered as a fully customized turnkey solution. It was designed and manufactured in accordance with the client’s specific requirements and the performance, power density, and reliability parameters of the Svarun supercomputing environment. NTR oversaw all phases of implementation, from engineering design and manufacturing to FAT testing, transport, installation, testing, and commissioning, ensuring rapid deployment, predictable execution, and full system validation prior to handover.
The Perun supercomputer, together with its system infrastructure, provides the Slovak Academy of Sciences with a stable and highly available environment for demanding computational processing and artificial intelligence workloads. With eleven system cabinets, a total IT equipment capacity of 462 rack units, and peak power of up to 130 kW per cabinet, it enables continuous execution of the most demanding computational workloads, largescale simulations, advanced modeling, and artificial intelligence applications.
CHALLENGES
- Supporting increased rack power densities characteristic of modern supercomputing environments operating under continuous full-load conditions.
- Ensuring stable and energy-efficient thermal conditions while reducing energy consumption and maintaining long-term operational sustainability.
- Implementing N+1 redundancy of critical power and cooling systems to ensure uninterrupted operation of nationally significant research infrastructure.
- Delivering a fully operational HPC environment and infrastructure within a significantly shorter timeframe than conventional construction approaches would allow. The entire project had to be completed in less than one year.
SOLUTION
A purpose-built, high-performance modular container data center designed specifically for HPC environments within key national research infrastructure, with requirements for high availability and continuous operation. The prefabricated solution integrates high-density IT space, a modular UPS system with lithium-ion battery technology, separate A and B power distribution paths, precision cooling designed for continuous operation under high load, advanced fire detection and suppression systems, and a centralized DCIM monitoring platform. The custom-engineered solution ensures reliable and uninterrupted operation under sustained high computational loads, while enabling future capacity expansion without major structural modifications.
»The Perun supercomputer will open up new possibilities for our users across various fields of science and research. Thanks to this, both Slovakia and the HPC Center of the Slovak Academy of Sciences are advancing to the European level in the field of high-performance computing.«
Nikola Kovaničová
General Director, CSČ SAV, v.v.i.
Modular High-Performance Data Center for Key National Research Infrastructure - PERUN
(PDF | EN)
Modularni visokozmogljivi podatkovni center za ključno nacionalno raziskovalno infrastrukturo - PERUN
(PDF | SL)
Optimized direct liquid cooling with high-temperature regimes, complemented by additional air cooling, both utilizing adiabatic cooling for dynamic power adjustment, together with intelligent energy management, contribute to high energy efficiency and reduced operating costs while maintaining the highest standards of availability and reliability. Remote management and monitoring are enabled by the BMS/DCIM system (NTR CDC DCIM), while the modular design ensures long-term adaptability and gradual capacity expansion without major architectural modifications. The containerized design provides structural robustness and resistance to environmental impacts. Fire protection is ensured by integrated fire detection and suppression systems, while physical security is provided through access control, video surveillance, and intrusion detection systems.
With the Perun supercomputer and the data center forming an integral part of this system, the Slovak Academy of Sciences has established a high-performance data center with ensured high availability for national research infrastructure, enabling fast and scalable expansion of the Slovak HPC cluster. NTR Inženiring d.o.o.

| SPECIFICATIONS | KEY FEATURES |
|---|---|
| Data Center Design | Separate IT module and separate Power module |
| IT Module Dimensions | 13.4 m x 3.6 m x 3.8 m (W x D x H) |
| Number of System Cabinets in IT Module | 4 Vertiv MIR2 system cabinets 4 dedicated BULL Sequana system cabinets with direct liquid cooling, up to 120 kW |
| Total IT Equipment Capacity | 462 rack units |
| Total IT Equipment Capacity | 420 kW |
| UPS System | Modular Vertiv APM2/600 with installed modules 8 x 60 kW total 480 kW with N+1 redundancy |
| Battery Technology | Lithium-ion batteries 30-minute autonomy at 420 kW load |
| Power Distribution | Separate A and B power paths A supported by UPS B supplied directly from backup source Vertiv iMPB busbar system with metering at each output |
| Backup Power Source | External diesel generator (outside project scope) |
| Direct Liquid Cooling System | 2 x adiabatic dry coolers, each approx. 440 kW for N+1 redundancy with additional option for supplementary chilled water cooling using remaining capacity of cooling units Air Cooling System designed for air-cooled equipment and supplementary cooling of DCL cabinets and supporting infrastructure – 2 x adiabatic cooling units Vertiv with indoor cooling units Vertiv PCW |
| Fire Protection | Structural fire resistance EI90 Early smoke detection VESDA Clean agent fire suppression system Inergen |
| Other Security Systems | Intrusion detection system (IDS) Access control Video surveillance |
| Monitoring System | Integrated BMS/DCIM monitoring system (NTR CDC DCIM) |

