Essential Guide to Data Center Fundamentals, Metrics, and Construction Standards

Table of Contents

1. Basic concepts of data centers 2. Key metrics of data centers 3. Construction standards 4. Conclusion

1. Basic Concepts of Data Centers

Data Center (IDC)

IDC (Internet Data Center) provides large‑scale, high‑quality, secure space rental, server hosting, and bandwidth services for governments, enterprises, and content providers.

IDC Characteristics

IDC requires large premises, highly reliable facilities, secure network environments, and professional monitoring and maintenance teams. It is a high‑cost, high‑revenue business where planning, cost reduction, and profit improvement are critical, especially as new technologies emerge.

IDC System Architecture

The architecture consists of five layers from bottom to top: infrastructure subsystem, network subsystem, resource subsystem, service subsystem, and management subsystem.

Infrastructure subsystem includes building works, fire protection, power distribution, UPS, cooling, security, cabling, racks, etc.

Network subsystem covers internal LAN, external Internet or private networks, and network security.

Resource subsystem comprises physical and virtual compute, storage, and network resources.

Service subsystem includes both proprietary and customer IT services.

Management subsystem handles resource, operation, and security management and collaborates with customers on service operations.

2. Key Metrics of Data Centers

PUE

PUE (Power Usage Effectiveness) is a widely used metric to evaluate data center energy efficiency.

Significance of PUE

PUE measures the ratio of total facility energy consumption to IT equipment energy consumption; a lower PUE (closer to 1) indicates better energy efficiency.

WUE

WUE (Water Usage Effectiveness) expresses the ratio of total water consumption to total IT energy consumption.

MTBF

MTBF (Mean Time Between Failure) indicates the average time between failures, expressed in hours, and reflects equipment reliability.

3. Construction Standards

Tier Standard

The Uptime Institute Tier classification (Tier I–IV) defines reliability levels, with Tier IV offering the highest fault tolerance and allowing only 48 minutes of annual downtime.

GB50174 Design Standard

China's GB50174 (first edition 2017) specifies three levels (A, B, C) for data center design, with Level A providing the highest fault tolerance. It is a design guideline without a certification scheme.

Other Standards

National standard GB2887‑89 classifies IDC rooms into star levels (1‑5) based on building size, location, power, cooling redundancy, and network bandwidth, granting certificates to compliant facilities.

4. Conclusion

Data center construction integrates building, power, cooling, IT, and networking disciplines, requiring coordinated planning from the outset to ensure proper layout, capacity sizing, and cost‑effective operation.