Network Computer Room Integrated Wiring Structure, Design Plan And Future Development Trend
Since the construction of the data center computer room carries the transmission of the entire communication data, the comprehensive wiring of the computer room is very important. In the past, the data center did not have high requirements for the comprehensive wiring of the computer room. As long as the equipment can operate normally, it can be used with the high performance and high performance of the data center. With the development of high-density, the scale of the computer room is getting larger and larger, and the integrated wiring structure of the computer room is becoming more and more complex. In order to allow users to build a neat, beautiful, green and energy-saving computer room, this article will focus on the integrated wiring structure of the computer room, the integrated wiring design of the computer room, and the computer room. Three aspects including the development trend of integrated wiring introduce in detail how to wire the computer room.
What are the integrated wiring structure of the computer room?
The integrated wiring structure of the computer room generally requires short wiring distance, neat and orderly arrangement. At present, the integrated wiring structure of the computer room mainly has two types of structure: "田" and "井". The "田" structure is more suitable for circular computer room layout, and the "井" shape is more suitable for vertical and horizontal computer room layouts. There are two wiring structures. Can be wired in two positions on the ceiling and under the floor.
Integrated wiring design scheme for computer room
The integrated wiring of the computer room has a built-in information transmission channel and is connected to the communication network outside the building. As the central nerve of the data center, it is related to the running status of the entire network. So how should the integrated wiring of the computer room be designed to meet the high-speed and high-performance requirements of the data center?
1. Subsystem design of computer room work area
The design of the computer room work area subsystem should be based on the actual situation in the building. The work area uses six types of information modules to clarify the equipment requirements in the work area, estimate the information points, use the cabinet layout and install the server and terminal equipment in the computer room. The information point of the work area subsystem of the computer room is designed as cabinet-type equipment, including server cabinets, network equipment, etc. The service equipment is installed in the cabinet in a unified manner. This work area subsystem needs to install five cabinets: the first cabinet to install the firewall and the next-generation firewall , SSLVPN, core switches, access switches, cloud service switches, alarm modules, embedded monitoring and management servers, power distribution monitoring and detection, UPS monitoring and wireless controllers and other equipment; the second cabinet-installed server, KVM switch, blade server , Cloud graphics, voice boards, UPS and other equipment; the third cabinet is equipped with keyboard, mouse, display, KVM switch, server and other equipment; the fourth cabinet is equipped with tape library, storage equipment, fiber optic switches, UPS and other equipment; the fifth cabinet The cabinet is equipped with monitors, keyboards, mice, servers, firewalls, switches and other equipment; in addition, the environmental monitoring system is equipped with precision air conditioning, temperature and humidity monitoring, precision air conditioning monitoring and ultrasonic humidifiers. When designing the information point, a certain amount of expansion space should be reserved for the expansion of the integrated wiring system in the computer room.
2. Subsystem design of the horizontal area of the computer room
The integrated wiring horizontal area subsystem of the computer room includes two subsystems: the voice system and the data system. The subsystem design of this area should use six types of wiring products (such as six types of unshielded network jumpers, etc.) to achieve a data transmission network with a transmission rate of 1000 Mbps. In order to realize the flexible interchangeability of data points and voice points, the medium of data points and voice points must be the same. At the same time, in order to make the integrated wiring of the computer room have high reliability, the integrated wiring of the horizontal zone subsystem can use twisted pair with high redundancy and strong anti-interference.
3. Design of the Vertical Main Subsystem of the Computer Room
The vertical backbone subsystem design of the computer room combines the requirements of voice communication in the integrated wiring project of the computer room. The vertical backbone voice system should use three types of large logarithmic UTP cables, and each voice point corresponds to a pair of backbone cables. At the same time, consider the 1:1.1 backbone. redundancy. In addition, the data backbone of the vertical backbone subsystem should use six-core indoor multi-mode 10 Gigabit fiber.
4. Subsystem design of computer room management area
The computer room management area subsystem includes wiring room configuration, wiring cabinet, copper cable distribution frame, optical cable distribution frame and management room jumper. Among them, the wiring closet needs to install network cabinet equipment; the network equipment in the wiring cabinet should follow the 19-inch standard size, so that the later maintenance and management can choose to install vertical cabinets on each floor; the copper distribution frame is to connect the vertical trunk cable and the voice Horizontal distribution frames should be equipped with cross-connect distribution frames; distribution frames can be selected with 24 ports and six types of shielded unshielded types for quick connection with network equipment; optical cable distribution frames should also be equipped with standardized 19-inch optical fibers. Wire rack to connect the multi-mode indoor optical fiber; the optical fiber jumper in the management room jumper adopts LC duplex duplex fiber optic jumper, but the network jumper of the data part and the voice part should adopt six types of network jumpers.
5. Subsystem design of equipment room in computer room
The equipment room subsystem design of the computer room is combined with the integrated wiring design specification of the computer room. The equipment room needs to be set up in the center of the building to manage the integrated wiring network in the entire building. At the same time, it can effectively reduce the amount of backbone cables in the internal integrated wiring of the building. The equipment room subsystem of the computer room includes wiring cabinets, copper cable distribution frames, optical cable distribution frames, and management room jumpers. Among them, the distribution cabinet should use standardized 19-inch equipment for later maintenance and management; the voice module, the main distribution frame and the vertical trunk cable distribution frame are connected between the voice center equipment in the copper cable distribution frame. It is supplied by the telecommunications bureau, so Cat3 voice distribution frame and network distribution frame are selected; the optical cable distribution frame also uses 19-inch optical fiber distribution frame, which can be connected to multi-mode indoor optical fiber; the optical fiber jumper in the management room uses LC duplex duplex Core fiber jumpers, but the network jumpers for the data part and the voice part should use Category 6 network jumpers.
Precautions for integrated wiring in network room
When performing integrated wiring in the computer room, pay attention to the following eight points:
1. Choose the appropriate cable length. In order to avoid cable entanglement and confusion caused by excess cable length, choose an appropriate cable length.
2. Fiber testing. Be sure to test the optical fiber before wiring, and use it after the test is successful to avoid rework because the optical fiber is unusable.
3. Pay attention to the fiber bend radius. When using an optical fiber jumper, do not make the bending radius of the optical fiber jumper exceed the minimum bending radius of the optical cable.
4. Avoid end-face contamination. When wiring the optical fiber, make sure that there is no debris, ash layer, and oil stains on the end of the optical cable.
5. The optical fiber and copper cable must be routed separately. Because copper cables are heavy and can damage optical fibers, they must be separated when wiring.
6. The cable density is the same. When wiring the network cables of the horizontal subsystem and the trunk subsystem, it is necessary to ensure that the cable density remains the same until the terminal.
7. Ensure that the cables have enough space for heat dissipation. Since the cable will become hot after working for a long time, there needs to be enough space for heat dissipation to avoid fire.
8. Use labels for cables. Labels are affixed to the cables to clearly mark the location of the cables, making the wiring environment more clear, and simplifying modification and addition operations.
What is the development trend of integrated wiring in the computer room?
You should find that there are many computer equipment (such as UPS equipment, etc.) and environmental protection equipment (such as special air conditioners in the computer room) in the system when integrated wiring in the computer room. It is precisely because of these equipment that the computer room has become a large energy consumer.
With the vigorous development of modern large-scale data centers and the continuous increase of energy consumption in data center computer rooms, in addition to continuing to improve the reliability of data center equipment, the establishment of a green, environmentally friendly, and energy-saving data center computer room is also an important task for the integrated wiring of the computer room.
In the "Guiding Opinions on the Layout of Data Center Construction", it is clearly pointed out that the focus on promoting green data centers and green power supplies is clearly required, and the energy consumption efficiency (PUE) value of new large-scale cloud computing data centers is clearly required to reach 1.5 or less. , Transformation and upgrade will reduce the PUE value below 2.0.
With the advent of the green data center and the active call of the national government, more and more users will consider adopting new energy-saving technologies and energy-saving equipment to reduce the energy consumption of the computer room when integrated wiring in the computer room, such as high-efficiency UPS power supply system, Low-energy-consumption air-conditioning for computer rooms and intelligent lighting systems for computer rooms, etc. At the same time, various energy-saving technologies and energy-saving equipment are also being developed.
In order to facilitate the update, upgrade and expansion of equipment in the computer room, it is appropriate to reserve a certain amount of redundant space for the development of various system equipment in the integrated wiring of the computer room, so as to reduce the system downtime due to the integrated wiring of the computer room.
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