TOKYO, JAPAN, Sept 12, 2024 — NTT Communications Corporation (NTT Com), which operates under the enterprise business brand “docomo business” within the DOCOMO group, announced today that one of its colocation data centers has been certified under the NVIDIA DGX-Ready Data Center program, validating it as a secure data center where enterprises can run their AI and other demanding applications leveraging NVIDIA accelerated computing infrastructure.¹ The certification was awarded in respect of the company’s Osaka 7 Data Center (OS7) in Ibaraki City, Osaka Prefecture.

The NVIDIA DGX-Ready Data Center program certifies data centers’ ability to host high-density² accelerated computing systems such as the NVIDIA DGX platform, as well as to accommodate supercomputer clusters like NVIDIA DGX SuperPOD, taking storage and cooling facilities into consideration. NTT Com has also joined the NVIDIA Partner Network as a data center provider.

Within the OS7 data center, NTT Com provides high-quality, reliable network services, exceptional connectivity incorporating Internet Exchange (IX) points³—hubs interconnecting ISPs and various other service providers—and optimal network environments. The OS7 facility can accommodate the high-density, high-efficiency racks required for applications such as generative AI, making them an ideal environment for operators looking to locate cutting-edge systems and large-scale computing systems.

OS7 as Green Nexcenter^®

It is planned that the OS7 will become a “Green Nexcenter^®” colocation data center equipped to support liquid-cooling systems⁴ for high density and accelerated computing systems. In addition, NTT Com offers the “APN Dedicated Line Plan powered by IOWN” service, which connects data centers with ultra-high speed wide bandwidth, cloud-based NVIDIA GPU services, and other networking and storage facilities, to support corporate and operator ICT environments.

The main features of the OS7 data center are as follows:

1.Green Nexcenter^®

NTT Com’s Green Nexcenter^® offering will be an environmentally friendly, ultra-energy-efficient data center facility, an evolution of its existing "Nexcenter" data center incorporating a liquid-cooling system. This will provide energy-efficient cooling that far surpasses traditional methods, and will therefore allow the accommodation of high-density servers that are difficult to manage in conventional data centers. Additionally, its utilization of renewable energy will provide a cutting-edge data center service that achieves carbon neutrality.

2.All-Photonics Network (APN)

NTT Com is connecting its approximately 70 data centers nationwide, including OS7, using the APN Dedicated Line Plan powered by IOWN, one of the key technical aspects of the IOWN concept,⁵ a cutting-edge optical transmission technology that achieves ultra-high-speed performance with minimal fluctuations and ultra-low power consumption.

3.NVIDIA accelerated computing operating environments

NTT Com plans to offer NVIDIA accelerated computing operating environments by utilizing Green Nexcenter^®, network services, storage, and other peripheral solutions, tailored to meet specific customer needs and use cases for servers with NVIDIA GPUs.

OS7 Specification & Benefits

OS7, which became operational in December 2019, features a server room area of approximately 4,600m², with plans to expand this to around 9,500m². It is situated in an area where there is a low risk of natural disasters such as earthquakes and flooding, and offers easy access from the cities of Osaka, Kyoto and Kobe. OS7 is a campus-style data center⁶ that can be flexibly customized per building or floor to cater to a variety of customer requirements.

Future Prospects

In order to meet the growing demand for generative AI and other cutting-edge applications, NTT Com will equip more of its data centers with Green Nexcenter^® facilities capable of cooling high-density servers and offering low power consumption. The first of these is scheduled to be offered at the company’s Yokohama 1 Data Center in March 2025, along with the OS7 in the Kansai region. The company is also proceeding with the installation of Green Nexcenter^® as standard equipment at its Keihanna Data Center (tentative name), which is scheduled to open in March 2026 in Seika-cho, Kyoto Prefecture.

About NTT Communications

NTT Communications solves global technology challenges by helping enterprises utilize managed IT-infrastructure solutions to overcome complexity and risk in their IT environments. These solutions are backed by our worldwide infrastructure, including industry-leading, global tier-1 public and private networks reaching over 190 countries/regions, the world's most advanced data-center facilities (more than 500,000m²) and cutting-edge technologies for cloud, security and AI. As the core provider of the DOCOMO group's enterprise-business services and solutions, we create value by providing global-scale support for restructuring in industry and society, new workstyles and digital transformation in communities, leveraging 5G, IoT and other technologies under the "docomo business" brand. Together with NTT Ltd., NTT Data and NTT DOCOMO, we are the NTT Group.
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