2015年05月26日

FiberOnSale in Shenzhen

Thank you for visiting FiberOnSale.com. FiberOnSale.com is a China-based global online source that has been a worldwide professional supplier in selling fiber optic communication products, who is providing a vast range of connectivity solutions to the telecommunications, military, industrial, data storage, broadcast and networking industries, has always offered a high degree of flexibility with our online shopping platform and customization with our wide various partners.

QQ截图20150521142218.jpg

From the moment we founded FiberOnSale, our vision was to empower people worldwide in purchasing fiber optics online.

FiberOnSale designs, develops, manufactures and markets a diverse portfolio of high-performance, cost-competitive fiber optic communication products for all applications. At the same time, we buy direct from an ever expanding network of Chinese manufacturers so we can keep costs low while maintaining the highest of standards.

Your fiber optic products will be sent to worldwide by Fedex overnight, DHL, UPS, HKEMS, TNT or any shipping method as your requirement.

From http://www.fiberonsale.com/news/fiberonsale-in-shenzhen.html

ラベル:FiberOnSale.com
posted by Alang at 11:13| Comment(0) | optical fiber | 更新情報をチェックする

2015年05月22日

Increased data center deployments boost active optical cable market

While the market for mainstream active optical cables (AOCs) such as 4x10-Gbps QSFP+ AOCs has historically been restricted mainly to high-performance computing (HPC) applications, the use of AOCs in data center networks has begun to increase says LightCounting. The market research firm expects 10GbE SFP+ AOCs will represent 25% of the projected $98 million AOC market in 2014, thanks to growth in data center deployments.


In fact, additional data center interest in all higher Ethernet speed from 25G, 40G, 100G, and even 400G combined with inter-chassis AOC connections in core routers will boost the AOC market to $266 million by 2020, LightCounting predicts in its new report on the AOC market.


SFP-AOC-1m.jpg

HPC clusters have been well suited to the use of AOCs, and InfiniBand-based clusters are mostly built with AOCs today, LightCounting says. Such uses will continue; HPC suppliers expect a return to strong growth rates in 2015, LightCounting reports, following an industry slump that followed an unusual HPC boom in 2012. AOC revenues have been helped during the lull by increased shipments of 4x14-Gbps InfiniBand FDR AOCs, which have supplanted declining sales of 4x10-Gbps InfiniBand QDR cables.


Meanwhile, core router manufacturers have added to AOC use, as it proved AOCs better supported "pay-as-you-grow" options between chassis than embedded optical modules on their switch fabric boards.


However, data center Ethernet connections via AOCs has been the "next big thing" for quite some time, LightCounting says. "Next" is finally "now," thanks to increased use of 40GbE as well as some clouds and Big Data applications adopting InfiniBand. Therefore, LightCounting projects that 2014 will have more than reversed the decline of 2013 in AOC sales and that 2015 will bring steady growth in unit volumes. The company notes that revenue growth will be more variable, as product mix changes throughout the forecast period.


This mix potentially includes 100G cables. Recently announced awards for range-topping supercomputers bode well for 4x25Gbps InfiniBand EDR AOCs even as the Intel "Grantley" server is already ushering in a welcome new upgrade cycle, LightCounting says. The report assesses Intel first major in-house offering in the 100G HPC space, the Omni Path 100G interconnect fabric.


Meanwhile, multiple hyperscale data center operators are making plans for 25GbE at the server and 100GbE in their switching fabrics. While early 25G server connections will be mostly copper, AOCs will offer advantages beyond the reach of the next rack, LightCounting predicts. AOCs also will provide a cost-effective means to connect top-of-row (TOR) switches to end-of-row aggregation switches today at 40G and tomorrow at 100G.


The sixth edition of LightCounting's "Active Optical Cable Report" examines the product segment that embeds optical transceiver technologies into enclosed cables with electrical connections. It presents historical data on annual AOC shipments, revenues, and average selling prices for 2011-2013 and forecasts the market for 2014-2020. It analyzes technologies, market forces and trends, protocol transitions, data rates, and MSAs for InfiniBand, Ethernet, and other protocols. The database covers applications for AOCs in HPC, data centers, core routing, and storage. Additional analysis is included for the still-small video and consumer AOC segment such as HDMI, and Thunderbolt.


The report is based on confidential sales information and detailed analysis of publicly available data released by leading component and equipment manufacturers along with considerable input from industry experts.

posted by Alang at 12:16| Comment(0) | data center | 更新情報をチェックする

2015年05月18日

Beyond PUE: The Big Picture Of Data Center Energy Efficiency

To hear the buzz in the data center industry, a facility manager might assume that reducing the PUE, or power usage effectiveness, of a data center would be a fool-proof way to add value to the business, as long as the steps taken to improve PUE don’t cause a spike in the risk of downtime. And in many cases, that is true. Data centers consume a lot of energy, and improving the efficiency of the facility infrastructure can reduce the organization’s energy bill significantly. But PUE may not point to the best opportunities to add value to the overall business — or even to the best ways to cut data center energy use.

PUE has become a widely used metric for data center energy efficiency. But while PUE can be useful, it doesn’t tell the whole story of data center energy efficiency. “If you have servers that are running at 2 percent utilization, it doesn’t matter how good your PUE is,” says Jonathan Koomey, research fellow, Steyer-Taylor Center for Energy Policy and Finance, Stanford University. Low server utilization means that a lot of energy is being wasted by IT hardware; raising utilization can be a great way to improve overall computing efficiency.

Utilization can be raised in many ways. One common strategy is virtualization, which involves the consolidation of software applications onto fewer servers and enables other servers to be turned off. The result is a reduction in energy use. Another possibility is simply to increase the utilization of some or all servers; in that case, the result would be an increase in IT energy use but also a gain in computing capacity, which may be important for the business.

Either way, a narrow focus on PUE would almost never lead to efforts to increase server utilization.

“The focus on improving one metric like PUE distracts from the focus on the whole system,” says Koomey, an expert on data center energy use, efficiency, and management practices who teaches an online class titled “Data Center Essentials for Executives.” “Amory Lovins from the Rocky Mountain Institute says that if you optimize parts of a system, you ‘pessimize’ the whole system.”

The starting point for evaluating data center energy efficiency efforts is to understand that a data center produces a service, which has a business value as well as a cost, says Koomey. “Sometimes things that you might do to reduce costs will also reduce the business value — and reduce business value more than the costs are reduced,” says Koomey.

Consider the idea of increasing data center temperatures to reduce cooling costs. Taking that step could limit an organization’s ability to deploy more or higher density servers. “You might increase the temperature in the data center and improve your PUE, but ultimately not increase your ability to produce more computing — and actually restrict it,” says Koomey. “People need to understand it’s not just about costs. It’s also about the benefit side of computing. If you do things that reduce costs on the surface, but prevent you from deploying more computing, that’s not necessarily the best thing for the company.”

Koomey says that business value comes from the amount of computing that a data center can produce. The goal, he says, is to “deliver compute at the lowest cost per compute cycle.” And in that context, he says, a facility department should see itself as a “cost-reducing profit center,” Koomey says.

“Let’s not just do things that reduce costs,” he says. “Let’s think about ways that we can expand the amount of compute that we’re doing, so that the total cost per compute cycle goes down and the total revenues per compute cycle go up.”

From http://www.10gtek.com/news1092.html

posted by Alang at 16:50| Comment(0) | data center | 更新情報をチェックする

広告


この広告は60日以上更新がないブログに表示がされております。

以下のいずれかの方法で非表示にすることが可能です。

・記事の投稿、編集をおこなう
・マイブログの【設定】 > 【広告設定】 より、「60日間更新が無い場合」 の 「広告を表示しない」にチェックを入れて保存する。


×

この広告は180日以上新しい記事の投稿がないブログに表示されております。