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Blog Category: Data Centers

Posted by: on October 24, 2013

This week we have a post from a guest blogger! Chris Ouellette is a Senior IT Specialist of Data Centre Services for IBM Canada, Ltd.

When constructing a new data center, companies nowadays are invariably faced with the decision of whether or not to use a traditional raised floor.

Those of us who have been around for a while recall early large mainframe equipment that required bulky cables, which could only realistically be placed under a raised floor. Other data center systems and services that required bottom-fed access were also typically concealed under the raised floor. Most importantly, the raised access floor was used to deliver cooled air to the front of the equipment racks.

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Tags: Data Center

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Blog Category: Data Centers

Posted by: on October 22, 2013

When Belden launched the Data Center Blog earlier this year, the concept of Holistic Design was the first topic I blogged about. Since that time we have had the opportunity to address the topic in recent newsletters and in print for Cabling Installation & Maintenance magazine.

We have also been invited to speak on the topic at a couple of industry events in 2014. Because this is coming up more and more in design conversations we decided to make this available as a white paper, breaking it down into the 10 Steps to Holistic Data Center Design.

Here’s an introduction to the content, see the link below and download your copy now.

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Tags: Data Center, Holistic Design

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Blog Category: Data Centers

Posted by: Paul Kish on October 17, 2013

A major factor that can influence power usage effectiveness (PUE) in a data center is the type of cooling system deployed and whether or not it includes free cooling.

Free cooling is the ability to leverage existing local ambient conditions to reduce energy usage. There are several latitudes and elevations around the world where data center managers can reduce the use of CRAC units and associated cooling costs by taking advantage of outside environmental conditions. According to reports by HIS, the market for free cooling technologies will grow faster than any other cooling methods over the next four years.

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Tags: Data Center, Cooling

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Blog Category: Data Centers

Posted by: Paul Kish on October 10, 2013

There is much discussion in the industry on how to measure and improve the energy efficiency of data centers. Thankfully, a number of organizations and standards committees are actively developing uniform and accurate methods, including the ISO/IEC JTC 1/SC 39 Subcommittee on Sustainability for and by Information Technology, which was formed in November 2011.

ISO/IEC CD 30134-2

One of the key draft standards within the ISO/IEC JTC 1/SC 39 Subcommittee is ISO/IEC CD 30134-2: Information Technology, Data Centres, Key Performance Indicators—Part 2: Power Usage Effectiveness (PUE).

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Tags: Data Center, PUE

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Blog Category: Data Centers

Posted by: on October 03, 2013

My original blog post on August 7th regarding the limitations of using 24-fiber MPO solutions seems to have raised some questions in the industry.

The more information we can offer our readers on the differences between 12-fiber and 24-fiber MPO solutions, the more informed decisions they can make. So let me elaborate on some of the concepts I touched on in my original post.

Fact #1—The Higher the Fiber Count, the Higher the Loss

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Tags: Data Center, MPO, Fiber Testing

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Blog Category: Data Centers

Posted by: on September 26, 2013

In my last blog, we took a look at passive chimney containment as a means to provide separation of hot and cold air in the data center.

A major challenge in managing an efficient data center is providing the proper balance between cold aisle temperature, IT equipment fan speed and hot air return temperature. While maintaining a perfect balance is not always easy, active chimney containment can hit the sweet spot of efficiency—especially in higher density environments.

The Active Approach

Unlike passive chimney solutions, an active chimney includes intelligence or components that actively move air from the hot aisle side of the cabinet to the CRAC/CRAH return.

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Tags: Active Chimney Containment, Data Center

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Blog Category: Data Centers

Posted by: on September 18, 2013

One of the fundamentals of operating an efficient Data Center is to eliminate the mixing of hot and cold air that can lead to significant Computer Room Air Conditioner/Computer Room Air Handler (CRAC/CRAH) inefficiencies. That’s where containment comes in.

There are many containment solutions available in the data center market—all designed to apply cold air to the IT equipment inlets and direct hot exhaust air back to CRAC/CRAH units without mixing with cooler air.

Personally, I was never a fan of chimney containment until Denis Blouin, my friend and Belden’s Product Line Manager for rack and enclosure solutions, introduced me to the concept. Due to its simplicity and the efficiencies that can be achieved when properly deployed, chimneys have now become one of my favorite containment methods. Let’s start by looking at passive chimneys.

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Tags: Data Center

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Blog Category: Data Centers

Posted by: on September 11, 2013

Centuries before Sir Isaac Newton started studying color at the age of 23 in 1666, mankind used color as a means of identification.

Color remains the easiest way to identify, recognize and classify just about anything, and it has always been an integral part of our industry—from the colors of individual fibers to the outer jacket of a cable.

Despite what you may have heard or seen, there isn’t a new lady or a new type of optical fiber in town. But there is a new color—Erika Violet—and she has a lot to offer when it comes to identifying OM4 fiber in the data center.

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Tags: Erika Violet, OM4 Fiber

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