On the Green environmental protection and energy saving of data center wiring system

With the rapid development of information, data center as the core node of the network, strong support for the operation of the network, data center construction has greatly increased the attention. Data center in the construction process encountered in the energy consumption, green and other issues gradually by IT managers and the solution provider's attention. With the rapid development of network demand, many investors do not hesitate to build more advanced data centers. The integrated wiring system, as the network basic physical platform, is one of the key points of data center construction, which is directly related to the stability of data center. Under the guidance of the TIA942 standard, the Global data center wiring system is based on the structure, high-density, high bandwidth, easy to expand, green and so on as the core concept, development for the entire data center wiring industry direction.

Integrated wiring system is only a passive system, it provides a passive platform for network equipment, is the bottom and foundation of the network. The integrated wiring has the transparency with respect to the network application, that is, the wiring system has the same support as the operating system of different network and the upper network device. A variety of network equipment is erected in the wiring system on an active platform, if the basic platform of green environmental protection is not guaranteed, then above the active platform power will multiply. Green Wiring system After a one-time investment, the general will continue to operate more than 15 years, wiring system life and stability is directly related to the operation and maintenance of data center.

"Green" has become today's data center construction of the era theme, based on the German Rosenberg Hdcs in the data Center integrated wiring Implementation Research and development of more than 15 years of experience, "green" mainly contains "green" and "green energy" two important components. With the global energy and carbon emission concerns increasing, the green data center wiring is the inevitable demand of the data center development to a certain stage.

A The green environment in the data center

To discuss the green wiring of the data center, the first thing to consider is the green environmental protection, that is, the product of the integrated cabling scheme is environmentally friendly. Judge whether environmental protection there are many industry can refer to the basis, at home and abroad are a lot of relevant policy support and certification standards. The 2008 Beijing Olympic Village, the 2010 Shanghai World Expo announced all the use of environmentally friendly products of the relevant policy provisions, in the future of the communications industry green products will also be biased, data center as the core node of the network selection of green environmental protection is particularly important.

RoHS 2002/95/EC Standards prohibit the use of six kinds of harmful substances in electronic and electrical products, EU issued RoHS Directive time Requirement: from July 1, 2006 onwards, the sale of lead (PB), Mercury (Hg), Cadmium (CD), hexavalent chromium (Crvi), PBBs ( PBB) and PBDEs (PBDE), electronic and electrical equipment for six kinds of hazardous substances. RoHS as an important reference standard is to limit the use of hazardous substances standard norms. Data center in the construction of priority should be selected to meet the RoHS standard products, otherwise contain the products of these materials to the environment, leaving heavy pollution waste, so in the data center cabling product selection is strictly prohibited in the use of products containing harmful substances exceeded the harm to the environment greatly.

At present, many enterprises, are strictly in accordance with the RoHS standards to produce, committed to environmental protection and environmentally friendly products, sustainable development, with the introduction of RoHS standard products, production and use of waste produced in the process as far as possible recycling and reuse. Many core enterprise values, social responsibility is a very important one, the environment and resource protection as a product solution added value.

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Data center at the same time high density, as far as possible the use of pre-end cable products, reducing the construction of 75% installation time (see figure I). Pre-end cable products equivalent to: ordinary optical cable + fiber Fusion + Fiber Pigtail + Fiber testing + rework + convenient installation + high performance + maintenance-free. The use of pre-end cable relative to the traditional on-site melt fiber, not only improve the quality and performance, and reduce the production of on-site installation of discarded supplies, so that the overall implementation process more environmentally-friendly and efficient.

(Figure I)

According to the domestic and international norms, the data center in the selection of cables should be balanced consideration at the same time and have fire retardant, low smoke, no smoke toxicity and non-corrosive, in the fire to balance the loss of personnel and equipment. The world's fire standards vary, North American UL standard, advocate cable smoldering in the fire when the priority stressed how to reduce flame expansion, fire spread and smoke generation. North American UL standard according to flame retardant grade from high to low divided into: fire-retardant CMP, non-combustion trunk-level CMR, non-combustion commercial grade cm, non-combustion general grade CMG and general household grade CMX; European countries in the wiring field is strongly advocated screen and low smoke halogen-free, pay attention to information security and personnel safety, the European low smoke halogen-free contains three standards : Iec60332-3 or iec60332-1 (flame expansion and smoldering), IEC61034 (smoke divergence), IEC754 (corrosive and toxic); The low smoke halogen free characteristic is not only has the good flame retardant performance, but also constitutes the low smoke halogen free cable material does not contain the halogen, The combustion of corrosion and toxicity is low, resulting in a very small amount of smoke, thereby reducing the human body, equipment and equipment damage, conducive to the timely rescue of fire. Therefore, the selection of low smoke and halogen free cable in data center is also one of the key points of green environmental protection.

Two Green Energy saving in data center

In the data center wiring process, once the comprehensive wiring installation completes, should do the protection work and no longer to operate. Any subsequent network configuration changes should be done by moving the optical 絧 jumper on the MDA horizontal cross connection. In this way, the MDA region becomes the object of concern in the physical layer management, and should be aware of its long-term manageability, reliability, security, and scalability when designing the MDA region.

Data center energy consumption is huge, and is increasing momentum, the proportion of global carbon emissions rising, improve data center energy efficiency is urgent. Green Grid is a non-profit IT organization that has launched two well-known standards for measuring energy efficiency, PUE and Dcie (Pue's Countdown) respectively. An important indicator of energy efficiency in a data center Pue (Power usage efficiencies) can fundamentally give you an idea of the overall power consumption and the power used for actual computing purposes. Pue is a ratio with a benchmark value of 2, and closer to 1 indicates a higher level of energy efficiency, and cannot allow Pue to reach 1 on the data center system at current levels of technology and equipment. Energy consumption throughout the data center includes supply of power to cooling equipment, coolers, lighting, storage nodes and devices such as servers, workstations, and gateways (see figure II).

(Figure II)