What are the grades of data center rooms, and what are the rating standards at home and abroad?

In China: We mostly use two standards, one is the national standard GB-50174 standard and the other is the international standard TIA-942. In the process of formulating the national standard GB-50174, a large number of TIA-942 contents are referenced, and the electrical, mechanical (cooling) systems, telecommunications, physical security, construction, etc. are described and specified in detail.

Among them, the national standard GB-50174 is edited by the China Electronic Engineering Design Institute of the Ministry of Industry and Information Technology of the People's Republic of China and approved by the Ministry of Housing and Urban-Rural Development of the People's Republic of China. It classifies data centers into three grades: A, B, and C.

Class A is fault-tolerant, and during the operation of the system, the site equipment should not be interrupted due to operation errors, equipment failures, external power interruptions, maintenance and overhaul.

Class B is a redundant type, during the operation of the system, its site equipment is within the redundancy capacity, and the operation of the electronic information system should not be interrupted due to equipment failure.

Class C is the basic type, and the operation of the electronic information system should be guaranteed without interruption under the normal operation of the site equipment.

The international standard TIA-942 is a data center telecommunications infrastructure standard developed by ANSI (American National Standards Institute, which is the representative of the United States in ISO) and TIA (Communications Industry Association) together with more than 60 organizations. In the early 2000s, TIA's TR42 Committee decided to develop telecommunications standards for data centers. TIA published the ANSI TIA-942 standard in 2005.

Divide data centers into four tiers, before 2014, called: tier 1-2-3-4;After 2014, it was changed to: rated rating 1-2-3-4

rated rating 1: Basic;

Rated Rating 2: Component redundancy;

Rated Rating 3: Concurrency is maintainable;

Rated Rating 4: Fault tolerance.

For details, please refer to the relevant standards.

The computer room is divided into four categories: T1 level annual mean time to failure hours; T2 level annual average failure time of 22 hours; T3 level annual mean time to failure hours; T4 level annual mean time to failure hours.

In the IT industry, the computer room generally refers to telecommunications, Netcom, mobile, dual-line, electric power and ** or enterprises, etc., where servers are stored and IT services are provided for users and employees, small dozens of square meters, placed twenty or thirty cabinets, large tens of thousands of square meters are placed in thousands of cabinets, or even more, and various servers and small computers are usually placed in the computer room.

For example, IBM minicomputer, HP minicomputer, SUN minicomputer, etc., the temperature and humidity of the computer room and anti-static measures have strict requirements, non-professional project personnel are generally not allowed to enter, and the server in the computer room runs many services, such as mobile MMS, short messages, call services, etc.

It is divided according to the speed of broadband access, security performance, and infrastructure of the computer room.

1. One-star, two-star (the scoring rate must reach more than 90%)

The evaluation criteria mainly include: computer room layout, public information symbol graphics, power supply equipment, refrigeration equipment, facilities and equipment maintenance, service language, IDC computer room hardware facilities, optical fiber, commitment to provide 24 7 (24 hours a week x 7 days) network connection status monitoring, 24 7 host operation status monitoring, 24 7 system management and technical support services, 24 7 customer service**, 24 7 constant temperature and humidity environment, dual-channel high-voltage power supply, need backup diesel generator, independent UPS Uninterruptible power supply guarantee and first-time response and support in emergency situations require 10 aspects, such as a high-sensitivity smoke detection system and a fire protection system composed of FM200.

2nd and 3rd star (the score rate must reach 92% or above).

In addition to the above 10 aspects, the three-star rating standard also adds the soundness of the computer management system and management system, the equipment of the computer room, IDC facilities and other content requirements, and sets up 73 items to choose (21 items in the comprehensive category category, 20 items in the characteristic category one, 16 items in the characteristic category two, and 16 items in the three characteristic categories), requiring the three-star IDC industry computer room to have at least 10 of them.

3 or 4 stars (95% score).

On the basis of the three-star evaluation standard, the four-star evaluation standard has added two necessary assessment contents of IDC industry internal and external decoration and high-quality monitoring system, and put forward higher requirements in other aspects, such as at least 26 of the 73 selected items.

4 or 5 stars (95% score).

The main criteria of this star are basically the same as the four-star content, but the content is richer, the scale is higher, the service items are set more, and the specifications are more detailed, such as at least 33 of the 73 selected items.

The classification standard of the computer room refers to the classification and evaluation of the computer room according to the requirements of the safety, reliability, management level and hardware level of the computer room. Generally speaking, the classification criteria of the computer room mainly include four considerations: the physical environment of the computer room, the power ** and backup system, the network and information security of the computer room, and the management services of the computer room.

First of all, the physical environment of the computer room refers to the considerations of the building, interior decoration, temperature and humidity control, fire prevention facilities, air conditioning, UPS and bending comfort of the computer room. Generally speaking, a standard computer room should be sturdy, durable, and have sufficient area, and at the same time, strict fire and safety standards are required to ensure the safety of the equipment room hardware. In addition, there should be a backup system such as strict temperature and humidity control, uninterruptible power supply and safe power supply to provide a stable and reliable infrastructure for the normal operation of the computer room.

Secondly, the power supply** and backup system of the computer room is another important consideration for the classification of the computer room. A good power and backup system can ensure the uninterrupted and stable operation of the computer room to avoid the impact of power failure or power outage on the computer room. Establishing a power** and backup system with multiple power supplies, autonomous power supplies, and in-depth backup can effectively improve the reliability of the data center.

The third consideration is the network and information security of the data center. Network and information security are the most important elements of computer room operation. The standard data center should adopt a secure and reliable network architecture to ensure the stability, speed, and security of the network.

In addition, the information security of the computer room should be ensured by locking, setting up an access control system, and installing appropriate monitoring and security equipment.

Finally, the management service of the computer room is the last consideration in the classification standard of the computer room. The management of the computer room should have a high level of hardware maintenance and management personnel to ensure the stability and reliability of the computer room, and the management should have a high level of security awareness and management ability to ensure the security of the computer room.

In general, the classification standard of the computer room is a comprehensive consideration of many factors, and it is necessary to consider the security, reliability, management level, and hardware level requirements of the computer room from multiple aspects. By scientifically and reasonably dividing the level of the computer room, it can provide a scientific and accurate reference for the construction of the computer room. <>

American Standards:

One of the most important is the Uptime Institute's Topology Standard, which includes Tier I, Tier II, Tier III, Tier IV. This is further divided into three aspects: design, construction and operation: Tier I, Tier II, Tier III, and Tier IV.

The second is the definition of Tier I, Tier II, Tier III and Tier IV in the TIA 942 standard, which is slightly different from the definition in the Topology Standard of the Uptime Institute, and now the Uptime Institute does not agree with the use of Tier I, TIER II, TIER III and Tier IV by TIA, and the new definition has not yet been released.

This is followed by the F0, F1, F2, F3, and F4 Chinese standards defined in BICSI 002.

GB 50174 defines a data center as Class A, B, C.

General Code for Electronic Computer Sites, GB T 2887-2011

Code for Design of Heating, Ventilation and Air Conditioning in Civil Buildings GB50736-2012

Technical Code for Lightning Protection of Building Electronic Information System GB50343-2012

The main domestic basis is copy:

GB50174-2008 "Code for Design of Electronic Information System Computer Room" DXJS1029-2011 "China Telecom IDC Computer Room Design Code".

DXJS1006-2005 Code for Design of Power Supply and Air Conditioning Environment in Data Center of China Telecom

GB50019-2003 Code for Design of Heating, Ventilation and Air Conditioning

GB50189-2005 "Design Standard for Energy Efficiency of Public Buildings".

GB50052-2009 Code for Design of Power Supply and Distribution System

GB50034-2004 "Architectural Lighting Design Standard".

Q CT2171-2009 Technical Specification for Network Cabinets for Data Equipment

If you want to build a data center room, please refer to the following standards:

1. "Design Regulations for Electronic Information System Computer Room.

Specialty, GB 50174-2008

2. "Code for the Construction and Inspection of Electronic Information System Computer Room" GB 50462-20083 "General Code for Electronic Computer Sites", GB T 2887-20004 "General Code for Anti-static Raised Floor", SJ T10796-20015 "Code for Quality Acceptance of Ventilation and Air Conditioning Engineering", GB 50243-20026 "Code for Design of Automatic Fire Alarm System", GB 50116-20087 "Code for Construction and Acceptance of Automatic Fire Alarm System" GB 50166-20078 "Code for Design of Power Supply and Distribution System" GB 50052-20099 "Code for Construction Quality Acceptance of Building Electrical Engineering" GB 50303-200210 "Technical Code for Lightning Protection of Building Electronic Information System" GB 50343-200411 "Code for Lightning Protection Design of Buildings" GB 50057-201012 "Code for Engineering Design of Integrated Wiring System" GB T50311-200713 "Code for Engineering Acceptance of Integrated Wiring System" GB T50312-2007Note: The construction of data centers does not involve civilian standards. The DXJS standard is a telecommunications standard, depending on what industry you are, the financial data center has its own standard, and the power data center has its own standard.

If you have a variety of standard needs or Q&A, you can reply to me below.