Analysis of the integrated wiring technology of large data eAnalysis of the integrated wiring technology of large data e
With the development of mobile Internet technology, the amount of data transmission and the mobile Internet usersupload to 1.3exabytes, equivalent to 10 of the 18 party. BigData "data" is the cloud computing, Internet of things TIindustry a subversive technological change. In today's information age, the amount of data generated has to can't use traditional tools for collection, storage, management and analysis. The amount of data generated by the 1ZBglobal, reached only 2011, and according to the forecast, the next ten years the global data storage capacity will increase by 50 times. Big data is not a cloud, is the soul and the direction of the upgrading of cloud computing.
1, the age of big data network challenge
The whole world network host number axis calibration is a rising trend, in 2007 the world average per capita only 0.1 devices are connected to the Internet, to 2013 per capita 7. 2016 will be every 3 minutes to transfer 3600000 hours of video, all the movies is equivalent to the world has produced. In 2010, the global Internet traffic, America is6337PB/ months, accounted for 31% of the world, Chinese accounted for 63% of the world. In 1998 a netizen a monthly consumption of 1000000000000 flow, 2003 to 10000000000000, 2008 is a month to lG flow, to 2014 a netizen a month may be to 10G.
In addition, the Internet of things has been applied in more and more industries, "everything is interconnected" is the ultimate goal of the Internet of things. This part is the absolute increase in the amount of data flow. IOT era will be the sensor automatic uninterrupted giant transfer large amounts of data and the network storage in the data center,storage to the network and data center plays a promoting role.
The development of large data and network infrastructure is mutual influence, restrict or promote, rising all the dataneed more massive data center to adapt, infrastructure cabling system as a data center internal connection and management is the foundation of all the flow of data, the data center operation plays a key role in data streamsupport. As one of the basic physical platform of data center cabling system.
2, the development of coping with the large data standardization
According to the 2012 version of the "data center telecommunications infrastructure standards" TIA942A for virtualnetwork architecture to No. Changes in the current network technology change rapidly based on cloud computing,virtualization of network development will be an important development trend of large scale data center architecture of grid, the network structure without switching matrix blocking is from one of the technology era of network levelresponse to large data. In order to deal with the challenges of big data, cloud computing application of virtualtechnology in the network is the inevitable trend in the development of technology.
Facing the great capacity data storage for data processing, data center in order to improve the efficiency of resource use and data analysis, calculation ability, extensive use of virtualization cloud computing technology,including the server virtualization technology. The trend of network framework will use two layer virtual network, the core layer using 40G/100G, access layer using 10G approach has become the network upgrading direction. Virtual matrix data center backbone network, more from the 10G network upgrade to 40G/100G. IEEE803.3ba in 2001 has been officially promulgated by the standard, the 40G/100G network technology, data center more backbone link88% is less than 100m, distance, multimode fiber 0M3/0M4 using MTP and QSFP interface of multi channel paralleltransmission mode, its good price based on, by the industry think is the preferred solution backbone link data center.
3, to support the analysis of large data network physical layer interface technology
When the high-speed network backbone network to the 40G/100G, data center access layer device and the server network interface from 1000M to 10G is an inevitable trend. In the past the access layer network rate at 1000M and below, the interface mode copper RJ45 are in the dominant position of the market as a whole. When the network up to 1G0, there will be a variety of interface models are available, the 10G interface type is more, the technical requirements of the larger differences. From the 10G interface type, power, port density, support distance and soon, the author believes that in the long term the CX4 copper project does not have much advantage. While the remaining four types, SFP ten DAC SFP ten AOC 10G passive copper cable, 10G cable, SFP ten active 10GBaseESR cable, RJ45Base-T cable solutions, each has advantages and disadvantages, not detailed here this. All kinds of 10G interface technologies are in progress, the advantages of different period also change, the technique can be used more and more in the market, still need to rub one's eyes and wait.
Application analysis of 4, transmission media
Wiring data center with the traditional buildings are not the same. For optical fiber, actually has not only satisfied with10M, 40G, 100G, IEEE802.3ba standard has been officially promulgated, 40G uses 8 core optical fiber to transmit data, and 100G is used in the 20 core. The IEEE working group pace did not stop, after the completion of the802.3ba, are doing a backward compatible to the standard 100G, optical fiber from 10G, ".
The application of optical fiber data center, by using the method of centralized and distributed management ofwiring. In the next few years, adjustment and application mechanism adjustment may need to be moved to a server inanother cabinet in the cabinet, there is a way, it is a centralized management. In the design of horizontal lines, no longer connected to the column headers cabinet, but all line connected to a centralized distribution area, in this area through the jumper connection from MDA to HAD, from HAD to EDA, and even jumped directly from MDA to EDA, or EDA directly to EAD. All this work to do in the concentrated distribution, without the need to move the server or relaying line below, so for some applications often change as more attractive. The application of 10G below, can be connected between the adapter and the jumper mode to complete the line, the future to upgrade to 40G/100G is also very simple, the adapter into MTP or MPO panel can.
The backbone network of the data center is mainly composed of a fiber as transmission medium based on the background, TIA standardization organizations have developed based on resistance of 100 Ω, balanced twisted pair copper in support of 40GBase-T network, the draft standards have been issued, expected standards will be formally implemented in 2014, the standard will copper twisted pair bandwidth extension to 2000MHz. Will continue to use RJ45 as the interface standard. The definition of copper level for Cat.8, support for 40GBase-T network transmission distance up to 30m, the data center 40G link 55% of the distance to meet the basic. Application of copper in support of 40G is an important supplement to the 40G standard, although the distance is short, can not become the mainstream in large scale data center in the main. But the expected copper solution cost advantage will build data center on a large number of smaller, is a significant advantage of the scheme, contributes to the application to data faster and broader push 40G network
Comparative analysis of 5, electronic distribution frame
At present, the smart wiring system there is no uniform international standard, so the design concept of the company's products are not the same, from the hardware point of view can be divided into port detection technologyand link detection of two, we do a simple analysis from the performance.
Port detection technology is in port built-in sensors, the standard 8 core jumper inserted at either end port isconnected to the induction, jumpers establish connection according to the order of. The characteristics of port technology is using ordinary jumper, easy to deploy and maintain, can automatically find the use of the port,because of using standard jumper saves maintenance cost. Port technology can easily be wiring frame of ordinarynon intelligent upgrade for the frame of intelligent, if has deployed a common frame and is already in use, the jumperhas filled, business running, even so can also online upgrade wiring system.
Characteristic of link technology is the use of special jumper, can automatically find the unique jumper jumper, allowends not in order.
Link technology needs more upper equipment build special network group, form the management network, toscanning electron distribution frame, to establish database. If you want to extend, only increase the electronicdistribution frame is not enough, must increase the multiple layers of management and scanning I amount, the user must evaluate to the network and manage their own points accurately, with enough equipment. If the use of specialjumper link, although some of the features can be achieved, but requires many complex upper device extension and scanning, is not conducive to the expansion and deployment. Overall, two approaches have their own advantages and disadvantages, common of the two kinds of technology is the out of band management mode, do not use 1 to 8according to the transmission media twisted pair cable, but increase the induction ability in the port or the lateralposition to judge the jumper. Of course, there are other intelligent routing techniques, such as transmission line carrier technology, also as will fit into the link technology improved some port bit, believe that intelligent routingtechnology in hardware will be further developed.
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