Analysis of integrated cabling technology in large Data environment

With the development of mobile Internet technology, the amount of data sent and uploaded by mobile internet users reaches 1.3exabytes, which is equivalent to 10 of 18 parties. Bigdata "Big Data" is after the cloud computing, the Internet of things ti industry once again subversive technology change. The amount of data produced in today's information age is too large to be collected, stored, managed and analyzed by traditional tools. Globally, the amount of data produced is 1ZB in 2011, and global data storage will grow 50 times times over the next decade, according to forecasts. Big data is not cloud computing, it is the soul of cloud computing and the direction of upgrade.

1, the Big Data Age Network challenge

The number of networked hosts worldwide is an upward trend, with only 0.1 devices worldwide connected to the Internet in 2007, and 7 per capita by 2013. The 3.6 million-hour video will be delivered every 3 minutes by 2016, equivalent to all the films produced worldwide. 2010 in the global Internet traffic, the United States is 6337pb/month, accounting for 31% of the world, China accounted for 63% of the world. 1998 a Netizen one months consumes 1 trillion traffic, 2003 number to 10 trillion, 2008 years one months to LG traffic, to 2014 a netizen one month may want to 10G.

In addition, the Internet of things in more and more industries have been applied, "everything interconnected" is the ultimate goal of the Internet of things. This part is the absolute increase in data traffic. The era of the Internet of things will be the sensor automatically and continuously huge amount of data and stored in the data center through the network, the Network and data center of storage played a driving role.

The development of large data and network infrastructure is mutual influence, constraints or promotion, the rise in all data volumes requires a larger data center to adapt to, cabling system as a data center for internal connectivity and management of the infrastructure is the basis for all data flow, the data center running on the support of large data streams played a key role. Cabling System is one of the basic physical platform for building data center.

2, standardization development to deal with large data

According to the 2012 version of the Data Center telecommunications infrastructure standards, TIA942A is largely not involved with virtualized network architectures. Based on the changing situation of current network technology, the network development of cloud computing virtualization will be the important development trend of large data center grid architecture, and the network structure with non-blocking Exchange matrix is one of the technical means to deal with the large data age from the network level. In order to meet the challenge of large data, the application of cloud computing Virtualization network technology is the inevitable trend of technology development.

Faced with massive data storage for data processing, data center will use virtualization cloud computing technology, including server virtualization technology, to improve resource utilization efficiency and data analysis and computing ability. The overall trend of the network architecture will adopt the sophomore-level virtualization network, the core layer adopts 40g/100g, the access layer adopts the 10G way has become the network upgrade direction basically. In the data center backbone network of the virtual matrix, it will be upgraded from 10G network to 40g/100g. IEEE803.3BA in 2001 has formally promulgated the use of 40G/100G network technology standards, data center backbone link more than 88% than 100m distance, multimode fiber 0m3/0m4 using MTP and QSFP interface multi-channel parallel transmission, based on its good price-performance, is considered by the industry as the preferred solution for backbone link applications in data centers.

3, support the large Data network physical layer Interface Technology analysis

When the network backbone moves toward the 40g/100g high-speed network, the data center Access Layer device and server network interface from 1000M to 10G is the inevitable trend. In the past, the network rate of the access layer was 1000M and below, and the interface mode of copper cable RJ45 was dominant in the whole market. When the network rises to 1g0, there will be a variety of interface models to choose from, the current 10G interface type is more, the technical requirements of the difference is large. From the 10G interface type, based on power consumption, port density, support distance and other aspects of thinking, I think in the long run CX4 copper cable scheme does not occupy too much advantage. The remaining four types, the SFP 10 DAC 10G passive copper cable, SFP 10 AOC 10G active cable, SFP Ten 10GBaseE one SR optical cable, RJ45BASE-T copper cable solution, each has advantages and disadvantages, here are not elaborated. All kinds of 10G interface technology are progressing, the advantages of different periods have changed, as to what technology in the market can be more applications, still need to wait and see.

4. Technical application analysis of transmission medium

The data center does not have the same wiring as the traditional building. For optical fiber, in fact, has not only been satisfied with the 10M, 40G, 100G, the standard IEEE802.3BA has been officially promulgated, 40G use 8-core fiber to transmit data, and 100G uses 20-core fiber. The pace of the IEEE Working Group was not stopped, and after 802.3ba was completed, a backward-compatible, 10G to 100G optical fiber standard was being made.

Data Center for optical fiber applications, using centralized and distributed methods for wiring management. In the next few years, the adjustment and application of the organization may need to move the server from this cabinet to another cabinet, one way is centralized management. In the design of the horizontal line, no longer connected to the header cabinet, but to connect all the lines to a central management wiring area, in this area through the jumper connection from MDA to had, from had to EDA, even from the MDA directly to the EDA, or EDA directly to EAD. All of this work is done centrally, without the need to move to the server below or to reroute the line, which is more appealing for some frequently changing applications. Currently for the application of 10G below, you can use the adapter and jumper way to complete the connection between the lines, the future to upgrade to 40g/100g is also very simple, the adapter replaced by MTP or the MPO panel can be.

Based on the current data center backbone network mainly by optical fiber as a transmission medium background, TIA standardization organization has been developing based on resistance 100ω, balance twisted pair of copper cable support 40GBASE-T Network, the draft standards have been issued, the expected standards will be formally implemented in 2014, The standard extends the bandwidth of copper twisted pair to 2000MHz. RJ45 will continue to be used as the interface standard. The definition copper level is cat.8, may support the 40GBASE-T network transmission distance achieves 30m, basically satisfies the data center 40G link 55% distance. Copper cable Support 40G application is an important complement to the 40G standard, although the distance is relatively short, in the larger data center trunk can not become mainstream. However, the cost advantage of the copper cable scheme is expected to be an advantage for a large number of smaller data center construction, which helps to promote the application of 40G network faster and wider in the data.

5. Comparison and analysis of electronic wiring racks

At present, the intelligent wiring system does not have uniform international standards, so the company's product design concept is not the same, from the hardware perspective can be divided into port detection technology and link detection technology, we do a simple analysis from the performance.

Port detection technology is in the port built-in micro-sensors, using a standard 8-core jumper inserted either end of the port is induction, the connection jumper needs to establish a connection in order. Port technology is characterized by the use of common jumper, easy to deploy and maintain, can automatically discover the usage of ports, because the use of standard jumper greatly reduce maintenance costs. Port technology can easily upgrade the common smart wiring racks to intelligent wiring racks, if the general wiring frame has been deployed and already in use, the jumper has been plugged in, the business is running, even if so also can upgrade the wiring system online.

Link technology is characterized by the use of special jumpers, can automatically find unique jumper, allow jumper ends are not in order to connect.

The link technology needs a lot of upper layer equipment to construct the Special Network group, form the management network, scan the electronic distribution frame, and establish the database. If you want to expand, only increase the electronic distribution frame is not enough, must increase the number of layers of management and scan I volume, the user must have their own network and management points effective accurate assessment to be equipped with enough equipment. With a special jumper link, although some functionality can be implemented, many sophisticated upper-level device extensions and scans are required, which are not conducive to scaling up and deployment. In general, both technologies have their advantages and disadvantages, the common denominator of the two technologies is the use of Out-of-band management mode, not the twisted pair of 1 to 8 for the transmission medium, but in the port or side to increase the induction ability to determine the location of the jumper. Of course, intelligent wiring has other technologies, such as transmission line carrier technology, as well as the link technology improved into some port technology a bit, I believe that intelligent wiring technology will be further developed in the hardware.