Yang Bifei, Data Centre Facility Product and Solution Planning Director at Huawei, gives us the lowdown on data centre facilities five years from now as we explore the 2025 Huawei trend forecast.
From 2010 to 2019, the data centre industry experienced exponential growth. The move towards hybrid IT continues as the balance between on-prem facilities, colocation and the cloud becomes more pronounced. The rapid development of new technologies such as Artificial Intelligence, cloud computing, Big Data and 5G will bring further growth and drive ever-increasing market demand.
To meet this demand, data centres must solve construction challenges to build at speed and scale and manage energy usage and costs in a sustainable way. In addition, data centres also face many challenges in terms of architecture flexibility and O&M.
The following trends look at how we meet this challenge as an industry and drive towards this future.
1) High density
CPU performance and server capacity will keep increasing with the evolution of IT computing capacity. As the demand for AI applications also increases, the importance of AI computing power grows in parallel. To balance efficiency and costs, data centres will develop with high density in mind. Currently, the average power capacity in a data centre is 6 to 8kW/rack. It is anticipated that power density of 15 to 20kW/rack will be predominant in data centres by 2025.
【Power density of 15 to 20 kW/rack will be predominant in data centres by 2025.】
2) Scalable architecture
Generally, the lifecycle of IT devices is three to five years and the power density doubles every five years. The lifecycle of data centre infrastructure, however, is 10 to 15 years. The data centre facility will support IT device evolution for two-three generations. It demands scalable expansion and phased investment for optimal CAPEX in the lifecycle of the data centre. In addition, the data centre must support hybrid deployment of IT devices with different power densities because of diversified IT services running there.
Currently, the power consumption of data centres accounts for 3% of the world’s total power consumption. It is estimated that the total power consumption of the data centre will reach more than 1,000TWh by 2025. Energy-saving, emission reduction and operating expense (OPEX) reduction are big challenges. Increasing power usage effectiveness (PUE) of data centres and building sustainably is imperative and inevitable. It is an irresistible trend to use clean energy and waste heat and to save resources (such as energy, land, water and materials) throughout the lifecycle of the data centre. It is estimated that the average PUE of a new data centre in China will drop to 1.1 in the next five years.
4) Quick deployment
Internet services usually spike in a short period of time, and data and traffic demands on the service side increase sharply. Therefore, data centres must be rolled out quickly. On the other hand, the data centre is changing from a support system to a production system. A faster rollout, therefore, means faster benefits. The typical TTM of a data centre is nine to 12 months, which is expected to be shortened to less than six months in the future.
【The average PUE of a new data centre in China will drop to 1.1 in the next five years.】
5) Full digitisation and AI-enablement
The software-defined, intelligent data centre is upon us. With the continuous improvement of IoT and AI technologies, data centres will gradually evolve from single-domain digitisation in terms of O&M, energy saving and operation, to full-lifecycle digitisation and automatic driving in terms of planning, construction, O&M and optimisation. AI will be widely adopted and applied.
6) Full modularisation
More data centres will be constructed in full modular mode to address the problems of slow construction and high initial investment costs. Modular designs will evolve from component modularisation to architecture modularisation and equipment room modularisation, finally achieving full modularisation of the data centre. The full modular design will enable fast deployment, flexible capacity expansion, simple O&M and high energy efficiency.
7) Simplified power supply architecture. Lithium batteries becoming the norm.
The power supply and distribution system of a traditional data centre is complex and fragmented; it occupies a large footprint and it is difficult to locate faults. A simplified power supply architecture will reduce power conversion times, shorten the power supply distance and footprint, improve the space utilisation rate and enhance system energy efficiency. Compared with lead-acid batteries, lithium batteries have advantages in terms of footprint and service life. As the cost of lithium batteries decreases, lithium batteries will be widely used in data centres in the future.
【Full modularisation of the data centre will enable fast deployment, flexible capacity expansion, simple O&M and high energy efficiency.】
8) The convergence of liquid cooling and air cooling; more indirect evaporative cooling and less chilled water cooling
GPU and NPU applications generate more high-density scenarios and liquid cooling systems will become more and more popular. Some storage and computing services, however, are still in low-density scenarios. To quickly adapt to uncertain IT service requirements in the future, the cooling solution must be compatible with the air-cooling system and liquid cooling system. In addition, the complex architecture of the chilled water-cooling system hinders quick deployment and easy O&M. An indirect evaporative cooling system, with a modular architecture, will shorten the deployment time and simplifies O&M. In addition, by fully utilising the natural cooling resources, power consumption of the cooling system will be greatly reduced. In areas with a suitable climate, the chilled water system will gradually be replaced by indirect evaporative cooling system.
9) Dynamic linkage between bits and watts
Reducing PUE doesn’t mean that the overall energy consumption of the data centre is optimal. Instead of focusing on the data centre energy facilities, the energy consumption of the data centre needs to be evaluated and optimised as a whole. Through full-stack innovation among facility, IT, chipsets, data and cloud, bits and watts will work collaboratively to achieve dynamic energy-saving and optimal energy efficiency of the entire system.
As the data centre facility becomes more intelligent, the network security threats will multiply. The data centre must have six features: resilience, security, privacy, safety, reliability and availability to prevent attacks and threats from environments and malicious personnel, including network intrusion threats.
【Reducing PUE doesn’t mean that the overall energy consumption of the data centre is optimal. Instead of focusing on the data centre energy facilities, the energy consumption of the data centre needs to be evaluated and optimised as a whole. 】Click below to share this article