<?xml version="1.0" encoding="UTF-8"?>
<rss version="2.0"
	xmlns:content="http://purl.org/rss/1.0/modules/content/"
	xmlns:wfw="http://wellformedweb.org/CommentAPI/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:atom="http://www.w3.org/2005/Atom"
	xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"
	xmlns:slash="http://purl.org/rss/1.0/modules/slash/"
	>

<channel>
	<title>The Hot Aisle &#187; Cooling</title>
	<atom:link href="http://www.thehotaisle.com/category/articles/cooling-articles/feed/" rel="self" type="application/rss+xml" />
	<link>http://www.thehotaisle.com</link>
	<description>Fresh Thinking on IT Operations</description>
	<lastBuildDate>Mon, 06 Feb 2012 14:54:03 +0000</lastBuildDate>
	<language>en</language>
	<sy:updatePeriod>hourly</sy:updatePeriod>
	<sy:updateFrequency>1</sy:updateFrequency>
	<generator>http://wordpress.org/?v=3.3.1</generator>
		<item>
		<title>So you think you understand your data center?</title>
		<link>http://www.thehotaisle.com/2010/07/07/so-you-think-you-understand-your-data-center/</link>
		<comments>http://www.thehotaisle.com/2010/07/07/so-you-think-you-understand-your-data-center/#comments</comments>
		<pubDate>Wed, 07 Jul 2010 14:47:57 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[IT Leadership]]></category>
		<category><![CDATA[IT Operations]]></category>
		<category><![CDATA[Mechanical]]></category>
		<category><![CDATA[Reliability & Availability]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[energy efficiency]]></category>
		<category><![CDATA[Green Ideas]]></category>
		<category><![CDATA[M&E]]></category>
		<category><![CDATA[Maintenance]]></category>
		<category><![CDATA[Problems]]></category>
		<category><![CDATA[Raised Floor]]></category>
		<category><![CDATA[Temperature]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1984</guid>
		<description><![CDATA[Yesterday Chris Leahy (my Technical Facilities Manager) and I were agonising over why we had low plenum pressure in our Data Center and why we were seeing symptoms of hot air trapped in the roof void. We looked at all the normal stuff: Leaks in the plenum space Badly sealed floor Cable access holes improperly [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2010/07/07/so-you-think-you-understand-your-data-center/feed/</wfw:commentRss>
		<slash:comments>2</slash:comments>
		</item>
		<item>
		<title>ASHRAE need to join the 21st Century</title>
		<link>http://www.thehotaisle.com/2010/04/12/ashrae-need-to-join-the-21st-century/</link>
		<comments>http://www.thehotaisle.com/2010/04/12/ashrae-need-to-join-the-21st-century/#comments</comments>
		<pubDate>Mon, 12 Apr 2010 18:22:29 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[IT Operations]]></category>
		<category><![CDATA[Mechanical]]></category>
		<category><![CDATA[Opinion]]></category>
		<category><![CDATA[Reliability & Availability]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1963</guid>
		<description><![CDATA[I don&#8217;t normally plug press releases straight from vendors but today I received an email from Emily Wood at Google with a message that I agree 100% with. Cooling data centers is not just about refrigeration &#8211; there are lots of options &#8211; many of which we have written about here on The Hot Aisle [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2010/04/12/ashrae-need-to-join-the-21st-century/feed/</wfw:commentRss>
		<slash:comments>4</slash:comments>
		</item>
		<item>
		<title>Is there an option other than Semtex to fix my Data Centre?</title>
		<link>http://www.thehotaisle.com/2010/03/12/is-there-option-other-than-semtex-to-fix-my-data-centre/</link>
		<comments>http://www.thehotaisle.com/2010/03/12/is-there-option-other-than-semtex-to-fix-my-data-centre/#comments</comments>
		<pubDate>Fri, 12 Mar 2010 19:45:43 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Feature]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[21st Century Data Centre]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[Cabinet]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[DC Power]]></category>
		<category><![CDATA[Green Ideas]]></category>
		<category><![CDATA[IT Infrastructure]]></category>
		<category><![CDATA[IT Operations]]></category>
		<category><![CDATA[M&E]]></category>
		<category><![CDATA[Power Density]]></category>
		<category><![CDATA[Problems]]></category>
		<category><![CDATA[PUE]]></category>
		<category><![CDATA[Raised Floor]]></category>
		<category><![CDATA[Sustainability]]></category>
		<category><![CDATA[Temperature]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1943</guid>
		<description><![CDATA[There are a lot of them around, Data Centres. A few of them are designed and operated very well and deliver great Power Usage Efficiency. Some could do a bit better, perhaps an airside economiser or two, or some hot or cold aisle containment, or maybe some DC power. Some are just a nightmare and [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2010/03/12/is-there-option-other-than-semtex-to-fix-my-data-centre/feed/</wfw:commentRss>
		<slash:comments>4</slash:comments>
		</item>
		<item>
		<title>Why storage will inevitably migrate to flash and trash</title>
		<link>http://www.thehotaisle.com/2010/01/31/why-storage-will-inevitably-migrate-to-flash-and-trash/</link>
		<comments>http://www.thehotaisle.com/2010/01/31/why-storage-will-inevitably-migrate-to-flash-and-trash/#comments</comments>
		<pubDate>Sun, 31 Jan 2010 20:17:08 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Electrical Systems]]></category>
		<category><![CDATA[Feature]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[Mechanical]]></category>
		<category><![CDATA[Opinion]]></category>
		<category><![CDATA[Storage]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[energy efficiency]]></category>
		<category><![CDATA[Green Ideas]]></category>
		<category><![CDATA[IT Operations]]></category>
		<category><![CDATA[M&E]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[Power Density]]></category>
		<category><![CDATA[PUE]]></category>
		<category><![CDATA[SAN]]></category>
		<category><![CDATA[UPS]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1896</guid>
		<description><![CDATA[If you have been following the storage business for a while, you will have noticed a few changes: Introduction of Flash Memory components as Solid State Disks Serial ATA (SATA) disks becoming popular and growing in capacity (2TB soon) There are lots of other disk technologies around like Fibre Channel and SAS but SSD and [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2010/01/31/why-storage-will-inevitably-migrate-to-flash-and-trash/feed/</wfw:commentRss>
		<slash:comments>2</slash:comments>
		</item>
		<item>
		<title>Knowledge is Power</title>
		<link>http://www.thehotaisle.com/2010/01/13/knowledge-is-power/</link>
		<comments>http://www.thehotaisle.com/2010/01/13/knowledge-is-power/#comments</comments>
		<pubDate>Wed, 13 Jan 2010 13:30:17 +0000</pubDate>
		<dc:creator>PeterWilliams</dc:creator>
				<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Electrical Systems]]></category>
		<category><![CDATA[IT Operations]]></category>
		<category><![CDATA[Mechanical]]></category>
		<category><![CDATA[Reliability & Availability]]></category>
		<category><![CDATA[Cabinet]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[DC Power]]></category>
		<category><![CDATA[energy efficiency]]></category>
		<category><![CDATA[M&E]]></category>
		<category><![CDATA[Maintenance]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[Problems]]></category>
		<category><![CDATA[Reliability]]></category>
		<category><![CDATA[servers]]></category>
		<category><![CDATA[Service Protection]]></category>
		<category><![CDATA[Software]]></category>
		<category><![CDATA[Temperature]]></category>
		<category><![CDATA[UPS]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1867</guid>
		<description><![CDATA[Back in 2008, Steve O&#8217;Donnell wrote an article here on The Hot Aisle explaining one of the challenges he set his team during his time at BT, the difficult task of getting Asset Management right. To summarise, Steve kicked off an audit of the whole estate, and where owners couldn’t be found for kit on the [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2010/01/13/knowledge-is-power/feed/</wfw:commentRss>
		<slash:comments>6</slash:comments>
		</item>
		<item>
		<title>Data Center Photographs</title>
		<link>http://www.thehotaisle.com/2009/12/18/data-center-photographs/</link>
		<comments>http://www.thehotaisle.com/2009/12/18/data-center-photographs/#comments</comments>
		<pubDate>Fri, 18 Dec 2009 19:21:29 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Data Center Reviews]]></category>
		<category><![CDATA[Electrical Systems]]></category>
		<category><![CDATA[Feature]]></category>
		<category><![CDATA[Fire Protection]]></category>
		<category><![CDATA[Mechanical]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[M&E]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1842</guid>
		<description><![CDATA[For years I have been a prolific photographer of Data Centres all over the world. I have hundreds of images, some brilliant, some out of focus and under-exposed, (I am a data centre guy, not  a professional photographer).  I thought that I might publish some of the better ones with a bit of narrative about [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2009/12/18/data-center-photographs/feed/</wfw:commentRss>
		<slash:comments>6</slash:comments>
		</item>
		<item>
		<title>Cute retrofit air containment solution launched</title>
		<link>http://www.thehotaisle.com/2009/12/11/cute-retrofit-air-containment-solution-launched/</link>
		<comments>http://www.thehotaisle.com/2009/12/11/cute-retrofit-air-containment-solution-launched/#comments</comments>
		<pubDate>Fri, 11 Dec 2009 21:09:16 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Feature]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[Cabinet]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[energy efficiency]]></category>
		<category><![CDATA[Green Ideas]]></category>
		<category><![CDATA[M&E]]></category>
		<category><![CDATA[Power Density]]></category>
		<category><![CDATA[Sustainability]]></category>
		<category><![CDATA[Temperature]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1802</guid>
		<description><![CDATA[Last week I met with my friend Steve Sole of Nubis who wanted to tell me about the work they have been doing in data centers around improving energy efficiency. Nubis make demountable Aisle Containment systems &#8211; they don&#8217;t care if it is Hot or Cold Aisle &#8211; the objective is to stop the air [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2009/12/11/cute-retrofit-air-containment-solution-launched/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>How do you currently choose where to place equipment in your data centre?</title>
		<link>http://www.thehotaisle.com/2009/12/11/how-do-you-currently-choose-where-to-place-equipment-in-your-data-centre/</link>
		<comments>http://www.thehotaisle.com/2009/12/11/how-do-you-currently-choose-where-to-place-equipment-in-your-data-centre/#comments</comments>
		<pubDate>Fri, 11 Dec 2009 15:12:39 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Electrical Systems]]></category>
		<category><![CDATA[Feature]]></category>
		<category><![CDATA[IT Operations]]></category>
		<category><![CDATA[Mechanical]]></category>
		<category><![CDATA[Reliability & Availability]]></category>
		<category><![CDATA[Surveys]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Electricity]]></category>
		<category><![CDATA[M&E]]></category>
		<category><![CDATA[Maintenance]]></category>
		<category><![CDATA[Power Density]]></category>
		<category><![CDATA[PUE]]></category>
		<category><![CDATA[Research]]></category>
		<category><![CDATA[servers]]></category>
		<category><![CDATA[Survey]]></category>
		<category><![CDATA[Temperature]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1792</guid>
		<description><![CDATA[Recently The Hot Aisle conducted an online survey asking the question - &#8220;How do you currently choose where to place equipment in your data centre?&#8221; As usual we got a very large response to the survey with 5,580 respondants. The results are in and it shows quite clearly that equipment placement is (to say the [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2009/12/11/how-do-you-currently-choose-where-to-place-equipment-in-your-data-centre/feed/</wfw:commentRss>
		<slash:comments>8</slash:comments>
		</item>
		<item>
		<title>Even Dilbert knows&#8230;</title>
		<link>http://www.thehotaisle.com/2009/11/22/even-dilbert-knows/</link>
		<comments>http://www.thehotaisle.com/2009/11/22/even-dilbert-knows/#comments</comments>
		<pubDate>Sun, 22 Nov 2009 20:42:38 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Funny]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[Temperature]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1745</guid>
		<description><![CDATA[&#8230;that cooling data centres using refrigeration is madder than a box of frogs. Maybe he could have suggested, fresh air cooling or the new Iceotope liquid cooling solution and kept his job whilst avoiding the toxic blob.]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2009/11/22/even-dilbert-knows/feed/</wfw:commentRss>
		<slash:comments>2</slash:comments>
		</item>
		<item>
		<title>New pictures of Iceotope Liquid Cooled Blades</title>
		<link>http://www.thehotaisle.com/2009/11/17/new-pictures-of-iceotope-liquid-cooled-blades/</link>
		<comments>http://www.thehotaisle.com/2009/11/17/new-pictures-of-iceotope-liquid-cooled-blades/#comments</comments>
		<pubDate>Tue, 17 Nov 2009 09:23:39 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cloud]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Feature]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[News]]></category>
		<category><![CDATA[Press Releases]]></category>
		<category><![CDATA[21st Century Data Centre]]></category>
		<category><![CDATA[Cabinet]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[energy efficiency]]></category>
		<category><![CDATA[Green Ideas]]></category>
		<category><![CDATA[IT Infrastructure]]></category>
		<category><![CDATA[M&E]]></category>
		<category><![CDATA[Power Density]]></category>
		<category><![CDATA[PUE]]></category>
		<category><![CDATA[Reliability]]></category>
		<category><![CDATA[servers]]></category>
		<category><![CDATA[Sustainability]]></category>
		<category><![CDATA[Temperature]]></category>
		<category><![CDATA[Virtualization]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1722</guid>
		<description><![CDATA[Iceotope Unveils First Modular Liquid-Immersion Cooled Blade Server Supercomputing 2009, Portland Oregon; 17th November 2009: Iceotope (www.iceotope.com) today launched its new liquid-cooled server technology. The system is believed to be the first to use modular “liquid immersion” of the server components and is able to reduce data centre cooling costs by 93%, saving hundreds of [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2009/11/17/new-pictures-of-iceotope-liquid-cooled-blades/feed/</wfw:commentRss>
		<slash:comments>3</slash:comments>
		</item>
		<item>
		<title>Data Centre Dilemmas</title>
		<link>http://www.thehotaisle.com/2009/11/16/data-centre-dilemmas/</link>
		<comments>http://www.thehotaisle.com/2009/11/16/data-centre-dilemmas/#comments</comments>
		<pubDate>Mon, 16 Nov 2009 16:11:00 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cloud]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[Interviews]]></category>
		<category><![CDATA[IT Leadership]]></category>
		<category><![CDATA[Mechanical]]></category>
		<category><![CDATA[Moves & Migration]]></category>
		<category><![CDATA[Reliability & Availability]]></category>
		<category><![CDATA[21st Century Data Centre]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[energy efficiency]]></category>
		<category><![CDATA[Green Ideas]]></category>
		<category><![CDATA[IT Infrastructure]]></category>
		<category><![CDATA[Migration]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[PUE]]></category>
		<category><![CDATA[Reliability]]></category>
		<category><![CDATA[servers]]></category>
		<category><![CDATA[Temperature]]></category>
		<category><![CDATA[Virtualization]]></category>
		<category><![CDATA[vmware]]></category>
		<category><![CDATA[Windows]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1714</guid>
		<description><![CDATA[I recently chaired a very interesting panel debate and discussion Hosted By BLADE Network Technologies in London. The panel was made up of: Harkeeret (Harqs) Singh, Global Head Data Centre Energy Optimisation, Thomson Reuters Finlay MacLeod, VP IT Infrastructure, EMEA, First Data Corp Charles Ferland, VP of EMEA, BLADE Network Technologies Brian Peterson, VP International [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2009/11/16/data-centre-dilemmas/feed/</wfw:commentRss>
		<slash:comments>2</slash:comments>
		</item>
		<item>
		<title>Innovation obsoletes the data centre</title>
		<link>http://www.thehotaisle.com/2009/11/13/one-day-all-servers-will-be-this-good/</link>
		<comments>http://www.thehotaisle.com/2009/11/13/one-day-all-servers-will-be-this-good/#comments</comments>
		<pubDate>Fri, 13 Nov 2009 21:48:19 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cloud]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Feature]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[IT Operations]]></category>
		<category><![CDATA[Mechanical]]></category>
		<category><![CDATA[News]]></category>
		<category><![CDATA[Reliability & Availability]]></category>
		<category><![CDATA[21st Century Data Centre]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[energy efficiency]]></category>
		<category><![CDATA[Green Ideas]]></category>
		<category><![CDATA[Investment]]></category>
		<category><![CDATA[IT Infrastructure]]></category>
		<category><![CDATA[M&E]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[Power Density]]></category>
		<category><![CDATA[PUE]]></category>
		<category><![CDATA[Reliability]]></category>
		<category><![CDATA[Research]]></category>
		<category><![CDATA[servers]]></category>
		<category><![CDATA[Sustainability]]></category>
		<category><![CDATA[Temperature]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1695</guid>
		<description><![CDATA[Next week, Iceotope will announce that it has developed, patented and manufactured an extreme IT equipment cooling solution.  The solution tackles the problems of cooling servers in data centres all the way from the actual source of the heat – at the processor and memory component level – to its final destination &#8211; outside air by [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2009/11/13/one-day-all-servers-will-be-this-good/feed/</wfw:commentRss>
		<slash:comments>40</slash:comments>
		</item>
		<item>
		<title>Where does the power go?</title>
		<link>http://www.thehotaisle.com/2009/10/29/where-does-the-power-go/</link>
		<comments>http://www.thehotaisle.com/2009/10/29/where-does-the-power-go/#comments</comments>
		<pubDate>Thu, 29 Oct 2009 17:08:53 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Electrical Systems]]></category>
		<category><![CDATA[Feature]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[21st Century Data Centre]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Electricity]]></category>
		<category><![CDATA[energy efficiency]]></category>
		<category><![CDATA[M&E]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[PUE]]></category>
		<category><![CDATA[Service Protection]]></category>
		<category><![CDATA[UPS]]></category>
		<category><![CDATA[Virtualization]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1677</guid>
		<description><![CDATA[  From the coal or oil delivered to the power station all the way through to the energy that drives our business applications the efficiency story is woeful.]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2009/10/29/where-does-the-power-go/feed/</wfw:commentRss>
		<slash:comments>4</slash:comments>
		</item>
		<item>
		<title>Zero emission datacenters</title>
		<link>http://www.thehotaisle.com/2009/10/06/zero-emission-datacenters/</link>
		<comments>http://www.thehotaisle.com/2009/10/06/zero-emission-datacenters/#comments</comments>
		<pubDate>Tue, 06 Oct 2009 19:47:23 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Feature]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[energy efficiency]]></category>
		<category><![CDATA[Investment]]></category>
		<category><![CDATA[M&E]]></category>
		<category><![CDATA[Power Density]]></category>
		<category><![CDATA[Research]]></category>
		<category><![CDATA[Sustainability]]></category>
		<category><![CDATA[Temperature]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1657</guid>
		<description><![CDATA[I met with Dr. Bruno Michel who is IBM&#8217;s, Zurich based, advanced thermal packaging manager yesterday. We spoke about IBM&#8217;s view of cooling technology in the 5 to 10 year horizon and what I heard was interesting and credible. IBM have been working with liquid cooling for some time, in the HydroCube, in the new [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2009/10/06/zero-emission-datacenters/feed/</wfw:commentRss>
		<slash:comments>4</slash:comments>
		</item>
		<item>
		<title>Back to the future for the z11 Mainframe</title>
		<link>http://www.thehotaisle.com/2009/09/25/back-to-the-future-for-the-z11-mainframe/</link>
		<comments>http://www.thehotaisle.com/2009/09/25/back-to-the-future-for-the-z11-mainframe/#comments</comments>
		<pubDate>Fri, 25 Sep 2009 21:36:16 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cloud]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Feature]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[Interviews]]></category>
		<category><![CDATA[21st Century Data Centre]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[energy efficiency]]></category>
		<category><![CDATA[Green Ideas]]></category>
		<category><![CDATA[IT Infrastructure]]></category>
		<category><![CDATA[Linux]]></category>
		<category><![CDATA[M&E]]></category>
		<category><![CDATA[Power Density]]></category>
		<category><![CDATA[PUE]]></category>
		<category><![CDATA[Reliability]]></category>
		<category><![CDATA[servers]]></category>
		<category><![CDATA[Temperature]]></category>
		<category><![CDATA[Virtualization]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1619</guid>
		<description><![CDATA[I recently had a conversation with Mark Anzani, IBM&#8217;s CTO for System z, the mainframe platform. Regular readers will know that cooling technology is a favourite subject here on the hot aisle and I was keen to get an answer to how IBM plan to cool their next range of machines, the z11 series. IBM [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2009/09/25/back-to-the-future-for-the-z11-mainframe/feed/</wfw:commentRss>
		<slash:comments>8</slash:comments>
		</item>
		<item>
		<title>Standing in the cold aisle</title>
		<link>http://www.thehotaisle.com/2009/09/10/standing-in-the-cold-aisle/</link>
		<comments>http://www.thehotaisle.com/2009/09/10/standing-in-the-cold-aisle/#comments</comments>
		<pubDate>Thu, 10 Sep 2009 14:57:01 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Feature]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[energy efficiency]]></category>
		<category><![CDATA[Green Ideas]]></category>
		<category><![CDATA[Temperature]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1527</guid>
		<description><![CDATA[Here is a photograph of my ESG colleague Taya Wyss and Cesar Orosco from NetApp in Sunnyvale standing in a smart cold aisle containment system. This is an aftermarket fitting in a relatively old data centre but nevertheless a useful improvement to cooling efficiency. The photograph shows cabinets facing front to front so that the [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2009/09/10/standing-in-the-cold-aisle/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>Inside the Verari FOREST Container</title>
		<link>http://www.thehotaisle.com/2009/09/09/inside-the-verari-forest-container/</link>
		<comments>http://www.thehotaisle.com/2009/09/09/inside-the-verari-forest-container/#comments</comments>
		<pubDate>Wed, 09 Sep 2009 11:06:29 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Feature]]></category>
		<category><![CDATA[News]]></category>
		<category><![CDATA[Storage]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1521</guid>
		<description><![CDATA[    My friend Dan Gatti who runs worldwide marketing at Verari sent me this picture showing the inside of a FOREST Data Center Scale computer rigged out with 26 Petabytes of disk storage. Verari are market leaders in Data Center Scale compute platforms and have shipped significantly more of these storage and compute units than [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2009/09/09/inside-the-verari-forest-container/feed/</wfw:commentRss>
		<slash:comments>5</slash:comments>
		</item>
		<item>
		<title>Curtains in Sunnyvale</title>
		<link>http://www.thehotaisle.com/2009/08/26/curtains-in-sunnyvale/</link>
		<comments>http://www.thehotaisle.com/2009/08/26/curtains-in-sunnyvale/#comments</comments>
		<pubDate>Wed, 26 Aug 2009 22:59:24 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Contamination]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Data Center Reviews]]></category>
		<category><![CDATA[Electrical Systems]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Green Ideas]]></category>
		<category><![CDATA[IT Operations]]></category>
		<category><![CDATA[Plenum Floor]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[Power Density]]></category>
		<category><![CDATA[PUE]]></category>
		<category><![CDATA[Raised Floor]]></category>
		<category><![CDATA[Sustainability]]></category>
		<category><![CDATA[Temperature]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1511</guid>
		<description><![CDATA[I am on the West Coast of the US this week visiting with NetApp in Sunnyvale again. On this trip I had the opportunity to visit a couple of NetApp&#8217;s internal data centers (B11 and the impressive B2 sites) with Cesar Orosco, NetApp on NetApp IT Architect. Cesar is charged with using NetApp technology in [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2009/08/26/curtains-in-sunnyvale/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>IBM claim that water cooled servers are the future of IT at scale</title>
		<link>http://www.thehotaisle.com/2009/06/03/ibm-claim-that-water-cooled-servers-are-the-future-of-it-at-scale/</link>
		<comments>http://www.thehotaisle.com/2009/06/03/ibm-claim-that-water-cooled-servers-are-the-future-of-it-at-scale/#comments</comments>
		<pubDate>Wed, 03 Jun 2009 21:08:58 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Feature]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[IT Operations]]></category>
		<category><![CDATA[Opinion]]></category>
		<category><![CDATA[Reliability & Availability]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[Cabinet]]></category>
		<category><![CDATA[cold air]]></category>
		<category><![CDATA[crac unit]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[heat exchanger]]></category>
		<category><![CDATA[heat load]]></category>
		<category><![CDATA[high density]]></category>
		<category><![CDATA[hot air]]></category>
		<category><![CDATA[M&E]]></category>
		<category><![CDATA[Moves]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[PUE]]></category>
		<category><![CDATA[Raised Floor]]></category>
		<category><![CDATA[refrigeration]]></category>
		<category><![CDATA[Reliability]]></category>
		<category><![CDATA[servers]]></category>
		<category><![CDATA[Temperature]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1403</guid>
		<description><![CDATA[I am old enough to remember the 1960&#8242;s when IBM Mainframes used de-ionized water delivered by micro-bore pipes to cool the CPUs. (In fact I remember a spillage during a mainframe move that resulted in every single auto spares shop in south east England being raided for deionized water). In a recent statement IBM claim that [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2009/06/03/ibm-claim-that-water-cooled-servers-are-the-future-of-it-at-scale/feed/</wfw:commentRss>
		<slash:comments>18</slash:comments>
		</item>
		<item>
		<title>Defying the laws of Physics &#8211; being dumb in the data center</title>
		<link>http://www.thehotaisle.com/2009/04/23/defying-the-laws-of-physics-being-dumb-in-the-data-center/</link>
		<comments>http://www.thehotaisle.com/2009/04/23/defying-the-laws-of-physics-being-dumb-in-the-data-center/#comments</comments>
		<pubDate>Thu, 23 Apr 2009 21:50:03 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Feature]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[air conditioning]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[Cabinet]]></category>
		<category><![CDATA[cold air]]></category>
		<category><![CDATA[crac unit]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Electricity]]></category>
		<category><![CDATA[hot air]]></category>
		<category><![CDATA[IT]]></category>
		<category><![CDATA[Maintenance]]></category>
		<category><![CDATA[Plenum Floor]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[Power Density]]></category>
		<category><![CDATA[Problems]]></category>
		<category><![CDATA[servers]]></category>
		<category><![CDATA[Temperature]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1332</guid>
		<description><![CDATA[We are all trying to fix the unfixable in the Data Centre. How do we get more cooling capacity from sites we built a decade ago for low power density applications? One of the biggest problems is that everyone is trying to work against a basic law of physics; hot air rises, and cold air [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2009/04/23/defying-the-laws-of-physics-being-dumb-in-the-data-center/feed/</wfw:commentRss>
		<slash:comments>14</slash:comments>
		</item>
		<item>
		<title>Verari Systems Wins major Green Enterprise IT Award</title>
		<link>http://www.thehotaisle.com/2009/04/16/verari-systems-wins-major-green-enterprise-it-award/</link>
		<comments>http://www.thehotaisle.com/2009/04/16/verari-systems-wins-major-green-enterprise-it-award/#comments</comments>
		<pubDate>Thu, 16 Apr 2009 20:53:28 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Electrical Systems]]></category>
		<category><![CDATA[Feature]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[Mechanical]]></category>
		<category><![CDATA[News]]></category>
		<category><![CDATA[Press Releases]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[data center consolidation]]></category>
		<category><![CDATA[DCiE]]></category>
		<category><![CDATA[energy efficiency]]></category>
		<category><![CDATA[high density]]></category>
		<category><![CDATA[Leadership]]></category>
		<category><![CDATA[Lean]]></category>
		<category><![CDATA[M&E]]></category>
		<category><![CDATA[Migration]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[Raised Floor]]></category>
		<category><![CDATA[servers]]></category>
		<category><![CDATA[Storage]]></category>
		<category><![CDATA[Sustainability]]></category>
		<category><![CDATA[uptime institute]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1322</guid>
		<description><![CDATA[I was delighted to hear today that my friends, David Wright (CEO) and David Driggers (CTO) at Verari Systems have been recognized for their great work on driving Data Center energy efficiency. For some time it has been apparent that the modular, containerized data center holds huge promise: Ability to deploy new capacity extremely rapidly Ability [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2009/04/16/verari-systems-wins-major-green-enterprise-it-award/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>Does it matter where we build our data center?</title>
		<link>http://www.thehotaisle.com/2009/03/20/does-it-matter-where-we-build-our-data-center/</link>
		<comments>http://www.thehotaisle.com/2009/03/20/does-it-matter-where-we-build-our-data-center/#comments</comments>
		<pubDate>Fri, 20 Mar 2009 12:53:31 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Contamination]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Electrical Systems]]></category>
		<category><![CDATA[Feature]]></category>
		<category><![CDATA[Reliability & Availability]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Government]]></category>
		<category><![CDATA[high density]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[Problems]]></category>
		<category><![CDATA[Security]]></category>
		<category><![CDATA[Storage]]></category>
		<category><![CDATA[web applications]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=663</guid>
		<description><![CDATA[I met with David Wright from Verari yesterday and we were talking about high density computing and power particularly about Verari&#8217;s data center in a container product. That got us to talking about power distribution problems and the fact that some of the big firms have been buying up sites in old US steel towns [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2009/03/20/does-it-matter-where-we-build-our-data-center/feed/</wfw:commentRss>
		<slash:comments>2</slash:comments>
		</item>
		<item>
		<title>Google Claim average DC Cooling and Power overhead at 16% for Q4</title>
		<link>http://www.thehotaisle.com/2009/01/29/google-claim-average-dc-cooling-and-power-overhead-at-16-for-q4/</link>
		<comments>http://www.thehotaisle.com/2009/01/29/google-claim-average-dc-cooling-and-power-overhead-at-16-for-q4/#comments</comments>
		<pubDate>Wed, 28 Jan 2009 23:16:08 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Electrical Systems]]></category>
		<category><![CDATA[Feature]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[EBIT]]></category>
		<category><![CDATA[Electricity]]></category>
		<category><![CDATA[google]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[Sustainability]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1161</guid>
		<description><![CDATA[Last quarter, Google posted information about the efficiency of Google data centers and promised to update this information every quarter. They have now kept that promise and published the collected data for the fourth quarter of 2008 to sustainable computing website. Here are the rules: The data center has to have been Google designed (many are colocation [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2009/01/29/google-claim-average-dc-cooling-and-power-overhead-at-16-for-q4/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>Caltech adopts Hot Aisle Containment</title>
		<link>http://www.thehotaisle.com/2009/01/28/caltech-adopts-hot-aisle-containment/</link>
		<comments>http://www.thehotaisle.com/2009/01/28/caltech-adopts-hot-aisle-containment/#comments</comments>
		<pubDate>Wed, 28 Jan 2009 10:49:59 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Feature]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[Mechanical]]></category>
		<category><![CDATA[air conditioning]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[cold air]]></category>
		<category><![CDATA[Curtains]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[hot air]]></category>
		<category><![CDATA[IT]]></category>
		<category><![CDATA[Power]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1149</guid>
		<description><![CDATA[The California Institute of Technology – also known as Caltech &#8212; is installing monitors and developing metrics to determine the efficiencies and savings of Hot Aisle Containment enclosures recently installed in one of their data centers.   The partitions and dividers were designed and manufactured by Simplex Isolation Systems of Fontana, CA, to isolate hot [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2009/01/28/caltech-adopts-hot-aisle-containment/feed/</wfw:commentRss>
		<slash:comments>2</slash:comments>
		</item>
		<item>
		<title>Fresh Air Cooling revisited</title>
		<link>http://www.thehotaisle.com/2008/11/11/fresh-air-cooling-revisited-2/</link>
		<comments>http://www.thehotaisle.com/2008/11/11/fresh-air-cooling-revisited-2/#comments</comments>
		<pubDate>Tue, 11 Nov 2008 16:48:51 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Feature]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[ashrae]]></category>
		<category><![CDATA[crac unit]]></category>
		<category><![CDATA[environmental impact]]></category>
		<category><![CDATA[fresh air]]></category>
		<category><![CDATA[heat exchanger]]></category>
		<category><![CDATA[kyoto conference]]></category>
		<category><![CDATA[Raised Floor]]></category>
		<category><![CDATA[Temperature]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1026</guid>
		<description><![CDATA[I picked up a really interesting website from KyotoCooling that has a very interesting new approach to low energy cooling systems. The firm takes it&#8217;s name from the Kyoto Conference where our governments met and agreed Carbon reduction targets that none of them had any intention of meeting. The Hot Aisle is firmly of the [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/11/11/fresh-air-cooling-revisited-2/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>Computer Room Air Conditioning (CRAC) Unit being installed</title>
		<link>http://www.thehotaisle.com/2008/10/28/computer-room-air-conditioning-crac-unit-being-installed/</link>
		<comments>http://www.thehotaisle.com/2008/10/28/computer-room-air-conditioning-crac-unit-being-installed/#comments</comments>
		<pubDate>Tue, 28 Oct 2008 11:47:40 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Contamination]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[IT Operations]]></category>
		<category><![CDATA[Mechanical]]></category>
		<category><![CDATA[Reliability & Availability]]></category>
		<category><![CDATA[air conditioning]]></category>
		<category><![CDATA[computer room air conditioning]]></category>
		<category><![CDATA[copper piping]]></category>
		<category><![CDATA[crac unit]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[nutley new jersey]]></category>
		<category><![CDATA[photograph]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=972</guid>
		<description><![CDATA[I took these photographs a bit over two years ago at the BT Reuters Data Center in Nutley New Jersey. They show a large CRAC Unit in the process of being installed. Note the copper piping, solder joints, open floor void and general mess that is involved in installation and commissioning. This is not something [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/10/28/computer-room-air-conditioning-crac-unit-being-installed/feed/</wfw:commentRss>
		<slash:comments>8</slash:comments>
		</item>
		<item>
		<title>Why your humidification plant is wasting electricity</title>
		<link>http://www.thehotaisle.com/2008/09/28/why-your-humidification-plant-is-probably-wasting-electricity/</link>
		<comments>http://www.thehotaisle.com/2008/09/28/why-your-humidification-plant-is-probably-wasting-electricity/#comments</comments>
		<pubDate>Sun, 28 Sep 2008 13:08:03 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Feature]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[Mechanical]]></category>
		<category><![CDATA[21st Century Data Centre]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[dehumidification]]></category>
		<category><![CDATA[energy efficiency]]></category>
		<category><![CDATA[Free Cooling]]></category>
		<category><![CDATA[Green Ideas]]></category>
		<category><![CDATA[humidifier unit]]></category>
		<category><![CDATA[Intelligent Cooling]]></category>
		<category><![CDATA[Plenum Floor]]></category>
		<category><![CDATA[relative humidity]]></category>
		<category><![CDATA[Reliability]]></category>
		<category><![CDATA[Static Electricity]]></category>
		<category><![CDATA[Temperature]]></category>
		<category><![CDATA[uptime institute]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=657</guid>
		<description><![CDATA[      Our atmosphere (the air around us) is made up of gasses consisting of nitrogen (78%), oxygen (21%), carbon dioxide (0.3%) and water in the form of vapor (humidity). The amount of water in the atmosphere is measured as a Relative Humidity (RH) Data Center air should contain the proper amount of water vapor [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/09/28/why-your-humidification-plant-is-probably-wasting-electricity/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>Data Center in a Tent?</title>
		<link>http://www.thehotaisle.com/2008/09/24/data-center-in-a-tent/</link>
		<comments>http://www.thehotaisle.com/2008/09/24/data-center-in-a-tent/#comments</comments>
		<pubDate>Wed, 24 Sep 2008 08:06:31 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Contamination]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Data Center Reviews]]></category>
		<category><![CDATA[Feature]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[Reliability & Availability]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[DC Power]]></category>
		<category><![CDATA[fresh air]]></category>
		<category><![CDATA[IT]]></category>
		<category><![CDATA[PUE]]></category>
		<category><![CDATA[refrigeration]]></category>
		<category><![CDATA[SAN]]></category>
		<category><![CDATA[Temperature]]></category>
		<category><![CDATA[UPS]]></category>
		<category><![CDATA[zero failures]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=665</guid>
		<description><![CDATA[I read a very interesting article from fellow blogger Christian Belady, who is Principal Power and Cooling Architect at Microsoft. Christian decided to take the PUE challenge and see if he could build a data center with a PUE of one! That is to have all of the power delivered to computing equipment and none [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/09/24/data-center-in-a-tent/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Hot Aisle Containment and Fire Protection</title>
		<link>http://www.thehotaisle.com/2008/09/08/hot-aisle-containment-and-fire-protection/</link>
		<comments>http://www.thehotaisle.com/2008/09/08/hot-aisle-containment-and-fire-protection/#comments</comments>
		<pubDate>Mon, 08 Sep 2008 05:54:17 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Fire Protection]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[containment systems]]></category>
		<category><![CDATA[Curtains]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Fire Detection]]></category>
		<category><![CDATA[IT]]></category>
		<category><![CDATA[M&E]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[Storage]]></category>
		<category><![CDATA[Temperature]]></category>
		<category><![CDATA[uptime institute]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=546</guid>
		<description><![CDATA[Recently we have been writing a lot about how hot-aisle/cold aisle containment. It is important to be aware this strategy, fire detection and protection requires special attention. A recent article in Search Data Center gives some good advice: Hot-aisle/cold-aisle containment – a variation on the traditional data center best practice of hot-aisle/cold-aisle design – is a way [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/09/08/hot-aisle-containment-and-fire-protection/feed/</wfw:commentRss>
		<slash:comments>3</slash:comments>
		</item>
		<item>
		<title>A Load of Hot Air</title>
		<link>http://www.thehotaisle.com/2008/08/25/removing-hot-air/</link>
		<comments>http://www.thehotaisle.com/2008/08/25/removing-hot-air/#comments</comments>
		<pubDate>Mon, 25 Aug 2008 19:26:03 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[high density]]></category>
		<category><![CDATA[hot air]]></category>
		<category><![CDATA[Milan]]></category>
		<category><![CDATA[photograph]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/2008/08/25/removing-hot-air/</guid>
		<description><![CDATA[This photograph shows a technique used to remove hot air from a high density area in a Data Center in Milan.]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/08/25/removing-hot-air/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Heat Exchanger</title>
		<link>http://www.thehotaisle.com/2008/08/25/heat-exchanger/</link>
		<comments>http://www.thehotaisle.com/2008/08/25/heat-exchanger/#comments</comments>
		<pubDate>Mon, 25 Aug 2008 14:29:33 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[heat exchanger]]></category>
		<category><![CDATA[photograph]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/2008/08/25/heat-exchanger/</guid>
		<description><![CDATA[This photograph shows an Intercooler unit in the basement of the I.Net data center in Milan.]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/08/25/heat-exchanger/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>How to cut your Data Center Power Bill</title>
		<link>http://www.thehotaisle.com/2008/08/19/how-to-cut-your-data-center-power-bill/</link>
		<comments>http://www.thehotaisle.com/2008/08/19/how-to-cut-your-data-center-power-bill/#comments</comments>
		<pubDate>Tue, 19 Aug 2008 15:10:35 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Fire Protection]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[IT Operations]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Green Ideas]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=366</guid>
		<description><![CDATA[Today we are going to look at practical changes that we can all make to our data centres that will improve cooling efficiency, to enable us to install more equipment in the same space or reduce our electricity bills. There are a few basic rules that will help us become more efficient. The first is [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/08/19/how-to-cut-your-data-center-power-bill/feed/</wfw:commentRss>
		<slash:comments>4</slash:comments>
		</item>
		<item>
		<title>Data Center Constraints</title>
		<link>http://www.thehotaisle.com/2008/08/11/data-center-constraints/</link>
		<comments>http://www.thehotaisle.com/2008/08/11/data-center-constraints/#comments</comments>
		<pubDate>Mon, 11 Aug 2008 15:28:03 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Surveys]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[M&E]]></category>
		<category><![CDATA[Survey]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/2008/08/11/data-center-constraints/</guid>
		<description><![CDATA[The Hot Aisle readership have reported that they have significant constraints on existing data centers with 56% reporting cooling constraints and a further 17% reporting more than one constraint. Significantly only one reader reports space as a constraint which agrees with my hypothesis that there is plenty of Data Center space, just no M&#38;E left.]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/08/11/data-center-constraints/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>AVIVA (aka Norwich Union) miss opportunity to Go Green</title>
		<link>http://www.thehotaisle.com/2008/08/02/aviva-aka-norwich-union-miss-opportunity-to-go-green/</link>
		<comments>http://www.thehotaisle.com/2008/08/02/aviva-aka-norwich-union-miss-opportunity-to-go-green/#comments</comments>
		<pubDate>Sat, 02 Aug 2008 14:57:59 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[Mechanical]]></category>
		<category><![CDATA[Opinion]]></category>
		<category><![CDATA[Business]]></category>
		<category><![CDATA[containment systems]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Electricity]]></category>
		<category><![CDATA[Free Cooling]]></category>
		<category><![CDATA[fresh air]]></category>
		<category><![CDATA[Migration]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[PUE]]></category>
		<category><![CDATA[Raised Floor]]></category>
		<category><![CDATA[Temperature]]></category>
		<category><![CDATA[UPS]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=347</guid>
		<description><![CDATA[AVIVA (aka Norwich Union) is set to open its third data centre &#8211; Data Centre 3 (DC3) at the Broadlands Business Park near Norwich, UK  this September. Although the site uses some modern design principles to minimize energy use, AVIVA have been far too conservative with the design and the opportunity to really go green has been missed. The [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/08/02/aviva-aka-norwich-union-miss-opportunity-to-go-green/feed/</wfw:commentRss>
		<slash:comments>2</slash:comments>
		</item>
		<item>
		<title>Cold Aisle Curtains gain Popularity</title>
		<link>http://www.thehotaisle.com/2008/08/01/cold-aisle-curtains-gain-popularity/</link>
		<comments>http://www.thehotaisle.com/2008/08/01/cold-aisle-curtains-gain-popularity/#comments</comments>
		<pubDate>Fri, 01 Aug 2008 19:10:03 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[Curtains]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Fire Detection]]></category>
		<category><![CDATA[Fire Protection]]></category>
		<category><![CDATA[Fire Suppressant]]></category>
		<category><![CDATA[Green Ideas]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=338</guid>
		<description><![CDATA[I was reading an article about the recent Silicon Valley Leadership Group (SVLG) Data Center Energy Summit, in San Francisco, engineers and data center pros gathered to study 11 case studies on energy efficiency. The data center studies varied, but one green data center tactic stood out: hot-aisle/cold-aisle containment. The Hot Aisle readers know that data center [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/08/01/cold-aisle-curtains-gain-popularity/feed/</wfw:commentRss>
		<slash:comments>5</slash:comments>
		</item>
		<item>
		<title>Cold Aisle Containment Curtain</title>
		<link>http://www.thehotaisle.com/2008/07/24/cold-aisle-containment-curtain/</link>
		<comments>http://www.thehotaisle.com/2008/07/24/cold-aisle-containment-curtain/#comments</comments>
		<pubDate>Thu, 24 Jul 2008 18:18:32 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[Mechanical]]></category>
		<category><![CDATA[Curtains]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/2008/07/24/cold-aisle-containment-curtain/</guid>
		<description><![CDATA[A photograph from the BT Rochdale Data Center showing how the transparent curtains are attached to the roof. These curtains are used to separate the Hot Aisle from the Cold Aisle in order to drive up cooling capacity and efficiency. There are a number of articles about using Curtains to drive energy efficiency on The [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/07/24/cold-aisle-containment-curtain/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>Hot Aisle Containment</title>
		<link>http://www.thehotaisle.com/2008/07/19/cold-aisle-containment/</link>
		<comments>http://www.thehotaisle.com/2008/07/19/cold-aisle-containment/#comments</comments>
		<pubDate>Fri, 18 Jul 2008 23:03:34 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Mechanical]]></category>
		<category><![CDATA[airflow]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/2008/07/19/hot-aisle-containment/</guid>
		<description><![CDATA[This is an interesting photograph of a commercially available APC Hot Aisle containment system. With adequate cold air to our raised floor, this rack module can house high density equipment.]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/07/19/cold-aisle-containment/feed/</wfw:commentRss>
		<slash:comments>7</slash:comments>
		</item>
		<item>
		<title>ONStor Claims that Cougar Storage features Power and Cooling Efficiency</title>
		<link>http://www.thehotaisle.com/2008/07/18/onstor-claims-that-cougar-storage-features-power-and-cooling-efficiency/</link>
		<comments>http://www.thehotaisle.com/2008/07/18/onstor-claims-that-cougar-storage-features-power-and-cooling-efficiency/#comments</comments>
		<pubDate>Fri, 18 Jul 2008 15:31:07 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[PUE]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=185</guid>
		<description><![CDATA[ONStor Inc.,  recently announced the launch of their new Cougar 6000 series NAS gateway and claim:  &#8220;Cougar&#8217;s advanced multi-core storage network processors are built into a highly available &#8220;cluster-in-a-box&#8221; design offering 18 cores per filer. This delivers high throughput, smallest footprint per rack unit, excellent power and cooling efficiency, and low cost per terabyte. This enables enterprises to process more [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/07/18/onstor-claims-that-cougar-storage-features-power-and-cooling-efficiency/feed/</wfw:commentRss>
		<slash:comments>6</slash:comments>
		</item>
		<item>
		<title>What is an Economizer?</title>
		<link>http://www.thehotaisle.com/2008/07/16/what-is-an-economizer/</link>
		<comments>http://www.thehotaisle.com/2008/07/16/what-is-an-economizer/#comments</comments>
		<pubDate>Wed, 16 Jul 2008 16:52:17 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[Mechanical]]></category>
		<category><![CDATA[air conditioning]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[dampers]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[economizer]]></category>
		<category><![CDATA[Free Cooling]]></category>
		<category><![CDATA[Intelligent Cooling]]></category>
		<category><![CDATA[outdoor humidity]]></category>
		<category><![CDATA[refrigeration]]></category>
		<category><![CDATA[Temperature]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/2008/07/16/what-is-an-economizer/</guid>
		<description><![CDATA[HVAC Economizers (sometimes known as air-side Economizers) are useful for data centers which are located in regions of the world where the outdoor temperature is lower than the desired data center temperature (for at least some of the day or year) and the outdoor humidity is mild. Economizers save energy by cooling buildings with outside [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/07/16/what-is-an-economizer/feed/</wfw:commentRss>
		<slash:comments>5</slash:comments>
		</item>
		<item>
		<title>Overhead Cable Delivery</title>
		<link>http://www.thehotaisle.com/2008/07/16/overhead-cable-delivery/</link>
		<comments>http://www.thehotaisle.com/2008/07/16/overhead-cable-delivery/#comments</comments>
		<pubDate>Tue, 15 Jul 2008 23:11:06 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Mechanical]]></category>
		<category><![CDATA[Reliability & Availability]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[IT Operations]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/2008/07/16/overhead-cable-delivery/</guid>
		<description><![CDATA[This picture is from a BT Data Center in Holland, just outside Amsterdam. There are quite significant airflow benefits to keeping power and data cables overhead and out of the plenum space under the floor. Underfloor pressures can be maximized and airflow design can be maintained. If we can avoid lifting floor tiles when installing [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/07/16/overhead-cable-delivery/feed/</wfw:commentRss>
		<slash:comments>4</slash:comments>
		</item>
		<item>
		<title>Architectural Aesthetics can Minimize Cooling Efficiency</title>
		<link>http://www.thehotaisle.com/2008/07/14/architectural-aesthetics-can-minimize-cooling-efficiency/</link>
		<comments>http://www.thehotaisle.com/2008/07/14/architectural-aesthetics-can-minimize-cooling-efficiency/#comments</comments>
		<pubDate>Mon, 14 Jul 2008 18:18:06 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[Mechanical]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Green Ideas]]></category>
		<category><![CDATA[Maintenance]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=170</guid>
		<description><![CDATA[  Dry coolers are used in many air cooled refrigeration systems. In case of low outdoor temperatures, outdoor air can be applied for cooling applications. In dry coolers, large fans create a forced airflow along air-to-water heat exchangers. Subsequently, the water circuit can be used for cooling of data centers, office buildings and industrial processes.  Dry coolers play an important [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/07/14/architectural-aesthetics-can-minimize-cooling-efficiency/feed/</wfw:commentRss>
		<slash:comments>2</slash:comments>
		</item>
		<item>
		<title>Putting PDUs and CRAC Units outside the Data Center Hall</title>
		<link>http://www.thehotaisle.com/2008/07/13/putting-pdus-and-crac-units-outside-the-data-center-hall/</link>
		<comments>http://www.thehotaisle.com/2008/07/13/putting-pdus-and-crac-units-outside-the-data-center-hall/#comments</comments>
		<pubDate>Sun, 13 Jul 2008 18:15:26 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Electrical Systems]]></category>
		<category><![CDATA[Mechanical]]></category>
		<category><![CDATA[crac unit]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[heat load]]></category>
		<category><![CDATA[I.Net]]></category>
		<category><![CDATA[M&E]]></category>
		<category><![CDATA[Milan]]></category>
		<category><![CDATA[PDU]]></category>
		<category><![CDATA[Raised Floor]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/2008/07/13/putting-pdus-and-crac-units-outside-the-data-center-hall/</guid>
		<description><![CDATA[This is a picture of the corridor around the I.Net Data Center in Milan showing much of the M&#38;E equipment that is normally housed within the data center hall located outside. So what are the benefits? Equipment can be maintained, filters changed etc.. without entering the raised floor area. Any heat load from the equipment [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/07/13/putting-pdus-and-crac-units-outside-the-data-center-hall/feed/</wfw:commentRss>
		<slash:comments>2</slash:comments>
		</item>
		<item>
		<title>Using Curtains to Manage Data Center Airflow &#8211; Revisited</title>
		<link>http://www.thehotaisle.com/2008/07/11/using-curtains-to-manage-data-center-airflow-revisited/</link>
		<comments>http://www.thehotaisle.com/2008/07/11/using-curtains-to-manage-data-center-airflow-revisited/#comments</comments>
		<pubDate>Fri, 11 Jul 2008 09:04:16 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Feature]]></category>
		<category><![CDATA[Fire Protection]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[Curtains]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Fire Detection]]></category>
		<category><![CDATA[Fire Suppressant]]></category>
		<category><![CDATA[Green Ideas]]></category>
		<category><![CDATA[Plenum Floor]]></category>
		<category><![CDATA[Raised Floor]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=166</guid>
		<description><![CDATA[I had two great questions from Hot Aisle readers following the latest article on Cold Aisle containment. Dan asked about the impact on fire suppression and Mark asked about where we got the transparent curtains. Lets start with the impact on fire systems of having either hot or cold aisle containment. The safety of personel [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/07/11/using-curtains-to-manage-data-center-airflow-revisited/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>The Cold Aisle</title>
		<link>http://www.thehotaisle.com/2008/07/09/the-cold-aisle/</link>
		<comments>http://www.thehotaisle.com/2008/07/09/the-cold-aisle/#comments</comments>
		<pubDate>Wed, 09 Jul 2008 22:12:50 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[BT]]></category>
		<category><![CDATA[Cabinet]]></category>
		<category><![CDATA[cold air]]></category>
		<category><![CDATA[Curtains]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[green technology]]></category>
		<category><![CDATA[hot air]]></category>
		<category><![CDATA[plastic curtains]]></category>
		<category><![CDATA[proof of concept]]></category>
		<category><![CDATA[Raised Floor]]></category>
		<category><![CDATA[rochdale]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/2008/07/09/the-cold-aisle/</guid>
		<description><![CDATA[I love this photograph that I took last year (2007) at the British Telecommunications Rochdale Data Center. It shows such a simple and easy to implement Green initiative that costs chump change and can take 15% off your electricity bill overnight. My colleague and friend Ged McLean of BT is that man who pulled it [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/07/09/the-cold-aisle/feed/</wfw:commentRss>
		<slash:comments>3</slash:comments>
		</item>
		<item>
		<title>Cooking Turkeys in the Data Center</title>
		<link>http://www.thehotaisle.com/2008/07/09/cooking-turkeys-in-the-data-center/</link>
		<comments>http://www.thehotaisle.com/2008/07/09/cooking-turkeys-in-the-data-center/#comments</comments>
		<pubDate>Wed, 09 Jul 2008 00:33:04 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[Interviews]]></category>
		<category><![CDATA[News]]></category>
		<category><![CDATA[21st Century Data Centre]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Green Ideas]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=163</guid>
		<description><![CDATA[The London Financial Times published an interesting article about data center cooling. Written by fellow blgger Dan Ilet of Greenbang.com it focuses on the strain being put on data centers by increased numbers and power demand of servers and the rapid increase in the cost of electricity. Its often amusing what journalists pick up in [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/07/09/cooking-turkeys-in-the-data-center/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>How to (not) make your Cisco 6509 spontaneously shut down</title>
		<link>http://www.thehotaisle.com/2008/07/07/how-to-not-make-your-cisco-6509-spontaneously-shut-down/</link>
		<comments>http://www.thehotaisle.com/2008/07/07/how-to-not-make-your-cisco-6509-spontaneously-shut-down/#comments</comments>
		<pubDate>Mon, 07 Jul 2008 11:21:19 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[IT Operations]]></category>
		<category><![CDATA[Mechanical]]></category>
		<category><![CDATA[Reliability & Availability]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[Cable Management]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Problems]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=152</guid>
		<description><![CDATA[It&#8217;s not a new phenomenon, Sun did it over a decade ago with the 4500 range of servers that vent hot air left to right rather than front to back but it doesn&#8217;t make it any easier to run a complex site when major vendors like Cisco continue to insist on breaking the front to back [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/07/07/how-to-not-make-your-cisco-6509-spontaneously-shut-down/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Groundwater Cooling System in Milan Italy</title>
		<link>http://www.thehotaisle.com/2008/07/05/groundwater-cooling-system-in-milan-italy/</link>
		<comments>http://www.thehotaisle.com/2008/07/05/groundwater-cooling-system-in-milan-italy/#comments</comments>
		<pubDate>Sat, 05 Jul 2008 18:02:18 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Green Ideas]]></category>
		<category><![CDATA[groundwater]]></category>
		<category><![CDATA[heat exchanger]]></category>
		<category><![CDATA[Milan]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/2008/07/05/groundwater-cooling-system-in-milan-italy/</guid>
		<description><![CDATA[Milan has a high (and rising) water table and the city authorities encourage the use of groundwater for cooling. They want to keep the water level in check to protect subway lines and utilities. Groundwater is pumped through a heat exchanger for condenser water and then dumped to the sewer. The authorities pump out the [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/07/05/groundwater-cooling-system-in-milan-italy/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>A big gamble in Vegas?</title>
		<link>http://www.thehotaisle.com/2008/07/03/a-big-gamble-in-vegas/</link>
		<comments>http://www.thehotaisle.com/2008/07/03/a-big-gamble-in-vegas/#comments</comments>
		<pubDate>Thu, 03 Jul 2008 22:58:11 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Data Center Reviews]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Green Ideas]]></category>
		<category><![CDATA[Plenum Floor]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=144</guid>
		<description><![CDATA[The Hot Aisle reader, Mark Hatton of Trapdoor dropped me a mail a few days ago about a company based in Las Vegas called Switch Communications and the CEO, Rob Roy was making a lot of claims about how good their proposed new data center was. You can read the original article in The Register. [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/07/03/a-big-gamble-in-vegas/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Data Centers Explore Novel Ways to Cut Energy Use</title>
		<link>http://www.thehotaisle.com/2008/06/30/data-centers-explore-novel-ways-to-cut-energy-use/</link>
		<comments>http://www.thehotaisle.com/2008/06/30/data-centers-explore-novel-ways-to-cut-energy-use/#comments</comments>
		<pubDate>Mon, 30 Jun 2008 17:30:58 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[Power]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=141</guid>
		<description><![CDATA[I just read a neat article in Infoworld about Data Center energy efficiency, conspicuously the article does not talk about carbon footprint or greenhouse gasses, not once, it talks about the cost of energy and how stupid it is to waste money. It talks about using human ingenuity to solve the problem and for once it [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/06/30/data-centers-explore-novel-ways-to-cut-energy-use/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Using Absorption Chillers to Drive Energy Efficiency</title>
		<link>http://www.thehotaisle.com/2008/06/25/using-absorption-chillers-to-drive-energy-efficiency/</link>
		<comments>http://www.thehotaisle.com/2008/06/25/using-absorption-chillers-to-drive-energy-efficiency/#comments</comments>
		<pubDate>Wed, 25 Jun 2008 12:01:05 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Electrical Systems]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[Mechanical]]></category>
		<category><![CDATA[Reliability & Availability]]></category>
		<category><![CDATA[Absorption Chillers]]></category>
		<category><![CDATA[Biomass]]></category>
		<category><![CDATA[CHP]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Gas Turbine]]></category>
		<category><![CDATA[Green Ideas]]></category>
		<category><![CDATA[Power]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=136</guid>
		<description><![CDATA[One of the things that prompted me to write about CHP and Biomass was an email I received from a colleague, Howard Pheby of 5 nines. Howard, and his partner Paul Foskett, are announcing their plans to build a new data center complex co-located with a Biomass Plant just up the road from my home [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/06/25/using-absorption-chillers-to-drive-energy-efficiency/feed/</wfw:commentRss>
		<slash:comments>2</slash:comments>
		</item>
		<item>
		<title>Just how green are Biomass and CHP Power Plants?</title>
		<link>http://www.thehotaisle.com/2008/06/25/just-how-green-are-biomass-and-chp-power-plants/</link>
		<comments>http://www.thehotaisle.com/2008/06/25/just-how-green-are-biomass-and-chp-power-plants/#comments</comments>
		<pubDate>Wed, 25 Jun 2008 09:48:23 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Electrical Systems]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[Green Ideas]]></category>
		<category><![CDATA[Power]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=135</guid>
		<description><![CDATA[As we have been discussing CHP and Biomass Power Stations recently, I though that it might be interesting to explore this subject in more detail. I live in East Anglia in England, a largely agricultural area that is leading the way in Biomass electricity production, so this is a matter of local interest for me. [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/06/25/just-how-green-are-biomass-and-chp-power-plants/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Revolutionizing Data Center Efficiency</title>
		<link>http://www.thehotaisle.com/2008/06/07/revolutionizing-data-center-efficiency/</link>
		<comments>http://www.thehotaisle.com/2008/06/07/revolutionizing-data-center-efficiency/#comments</comments>
		<pubDate>Sat, 07 Jun 2008 07:10:27 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Electrical Systems]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[IT Leadership]]></category>
		<category><![CDATA[21st Century Data Centre]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Data Center Effectiveness]]></category>
		<category><![CDATA[Government Policy]]></category>
		<category><![CDATA[Green Ideas]]></category>
		<category><![CDATA[Leadership]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=71</guid>
		<description><![CDATA[I have just been exchanging emails with my good friend and colleague, Will Forest. Will runs the Data Center Consulting Practice for top drawer strategy consultants, McKinsey &#38; Company. I engaged Will, and we worked together on delivering BT&#8217;s Data Center Strategy. Will and his team brought a great deal of experience and clarity of [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/06/07/revolutionizing-data-center-efficiency/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Fresh Air Cooling Revisited</title>
		<link>http://www.thehotaisle.com/2008/06/06/fresh-air-cooling-revisited/</link>
		<comments>http://www.thehotaisle.com/2008/06/06/fresh-air-cooling-revisited/#comments</comments>
		<pubDate>Fri, 06 Jun 2008 21:16:29 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[Mechanical]]></category>
		<category><![CDATA[Reliability & Availability]]></category>
		<category><![CDATA[21st Century Data Centre]]></category>
		<category><![CDATA[Compute Power Efficiency]]></category>
		<category><![CDATA[CPE]]></category>
		<category><![CDATA[Curtains]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Data Center Effectiveness]]></category>
		<category><![CDATA[DCE]]></category>
		<category><![CDATA[Plenum Floor]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[Power Density]]></category>
		<category><![CDATA[Raised Floor]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=70</guid>
		<description><![CDATA[I have had a great interchange from a subscriber to The Hot Aisle:- Darek Wichniewicz of ATM SA in Warsaw, Poland. Darek is looking for some real technical advice on building a new Data Center facility of 2000 &#8211; 3000 square meters utilizing fresh air cooling. Like many Data Center operators Darek is concerned about being [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/06/06/fresh-air-cooling-revisited/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>How Efficient is my Data Center?</title>
		<link>http://www.thehotaisle.com/2008/05/15/how-efficient-is-my-data-center/</link>
		<comments>http://www.thehotaisle.com/2008/05/15/how-efficient-is-my-data-center/#comments</comments>
		<pubDate>Thu, 15 May 2008 22:22:17 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Electrical Systems]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[Compute Power Efficiency]]></category>
		<category><![CDATA[CPE]]></category>
		<category><![CDATA[Data Center Effectiveness]]></category>
		<category><![CDATA[DCE]]></category>
		<category><![CDATA[DCiE]]></category>
		<category><![CDATA[Electricity]]></category>
		<category><![CDATA[Government Policy]]></category>
		<category><![CDATA[Green Ideas]]></category>
		<category><![CDATA[iPDU]]></category>
		<category><![CDATA[M&E]]></category>
		<category><![CDATA[PDU]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[Power Density]]></category>
		<category><![CDATA[PUE]]></category>
		<category><![CDATA[Sustainability]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=40</guid>
		<description><![CDATA[A key management principle is that you can&#8217;t manage what you can&#8217;t measure. So if we want to manage the energy efficiency of our data center estate, then we had better be in a position to baseline where we are today so that we can identify the value of the changes that we implement. The [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/05/15/how-efficient-is-my-data-center/feed/</wfw:commentRss>
		<slash:comments>11</slash:comments>
		</item>
		<item>
		<title>Just how reliable is my Data Center?</title>
		<link>http://www.thehotaisle.com/2008/04/30/just-how-reliable-is-my-data-center/</link>
		<comments>http://www.thehotaisle.com/2008/04/30/just-how-reliable-is-my-data-center/#comments</comments>
		<pubDate>Wed, 30 Apr 2008 17:00:15 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Electrical Systems]]></category>
		<category><![CDATA[IT Operations]]></category>
		<category><![CDATA[Reliability & Availability]]></category>
		<category><![CDATA[AC Power]]></category>
		<category><![CDATA[Cascade Failure]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Electricity]]></category>
		<category><![CDATA[Maintenance]]></category>
		<category><![CDATA[PDU]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[Power Density]]></category>
		<category><![CDATA[Problems]]></category>
		<category><![CDATA[Reliability]]></category>
		<category><![CDATA[Service Protection]]></category>
		<category><![CDATA[Temperature]]></category>

		<guid isPermaLink="false">http://thehotaisle.com/?p=50</guid>
		<description><![CDATA[The consequences of data center failure can be pretty catastrophic for your business, so unsurprisingly, you will have very high expectations about availability and reliability. Unfortunately for many of us, our expectations will not be met by reality. Very often the system that is our data center facility is significantly less reliable than we might [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/04/30/just-how-reliable-is-my-data-center/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>Intelligent Cooling in Data Centres</title>
		<link>http://www.thehotaisle.com/2008/04/23/intelligent-cooling-in-data-centres/</link>
		<comments>http://www.thehotaisle.com/2008/04/23/intelligent-cooling-in-data-centres/#comments</comments>
		<pubDate>Wed, 23 Apr 2008 17:47:57 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[AAC]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[DFU]]></category>
		<category><![CDATA[Floor Tiles]]></category>
		<category><![CDATA[Intelligent Cooling]]></category>
		<category><![CDATA[iPDU]]></category>
		<category><![CDATA[PDU]]></category>
		<category><![CDATA[Plenum Floor]]></category>
		<category><![CDATA[Raised Floor]]></category>
		<category><![CDATA[Room Scale Adaptive Cooling]]></category>
		<category><![CDATA[SCADA]]></category>

		<guid isPermaLink="false">http://thehotaisle.com/?p=28</guid>
		<description><![CDATA[The basis of intelligent cooling is that it allows us to deliver only the cooling that is required to meet our temperature requirements. By reducing the flow of air down to that which is actually needed (rather than just blowing as fast as we can) it is possible to reduce the energy demand of our [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/04/23/intelligent-cooling-in-data-centres/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Attention to Detail &#8211; The Basics of Green IT</title>
		<link>http://www.thehotaisle.com/2008/04/18/attention-to-detail/</link>
		<comments>http://www.thehotaisle.com/2008/04/18/attention-to-detail/#comments</comments>
		<pubDate>Fri, 18 Apr 2008 18:37:12 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[Curtains]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[fresh air]]></category>
		<category><![CDATA[Green Ideas]]></category>
		<category><![CDATA[hot spots]]></category>
		<category><![CDATA[Intelligent Cooling]]></category>
		<category><![CDATA[Maintenance]]></category>
		<category><![CDATA[Plenum Floor]]></category>
		<category><![CDATA[rack layout]]></category>
		<category><![CDATA[Raised Floor]]></category>
		<category><![CDATA[refrigeration]]></category>
		<category><![CDATA[Sustainability]]></category>

		<guid isPermaLink="false">http://thehotaisle.com/?p=11</guid>
		<description><![CDATA[Data Centre Basics There are some basics that just need to be done to keep a data centre efficient and as green as possible. Maintaining the floor is often a task that is left too late. Gaps and unnecessary holes in the floor are bad news and lead to the mixing of hot and cold [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/04/18/attention-to-detail/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Using Curtains to manage Data Center Airflow</title>
		<link>http://www.thehotaisle.com/2008/04/18/being-smart/</link>
		<comments>http://www.thehotaisle.com/2008/04/18/being-smart/#comments</comments>
		<pubDate>Fri, 18 Apr 2008 18:35:46 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[Cabinet]]></category>
		<category><![CDATA[Curtains]]></category>
		<category><![CDATA[Floor Tiles]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[Temperature]]></category>

		<guid isPermaLink="false">http://thehotaisle.com/?p=10</guid>
		<description><![CDATA[Separation of Hot and Cold Aisle The photograph above was taken in BT&#8217;s Rochdale Data Centre. It shows the use of curtains to separate the hot and cold aisles, thereby reducing the amount of hot air that mixes with cold air from the plenum floor and dramatically increasing cooling efficiency. Inside the curtained off space [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/04/18/being-smart/feed/</wfw:commentRss>
		<slash:comments>15</slash:comments>
		</item>
		<item>
		<title>Fresh Air in Data Centres</title>
		<link>http://www.thehotaisle.com/2008/04/18/fresh-air-in-data-centres/</link>
		<comments>http://www.thehotaisle.com/2008/04/18/fresh-air-in-data-centres/#comments</comments>
		<pubDate>Fri, 18 Apr 2008 18:07:48 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Contamination]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[21st Century Data Centre]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Green Ideas]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[Intelligent Cooling]]></category>

		<guid isPermaLink="false">http://thehotaisle.com/?p=8</guid>
		<description><![CDATA[Cooling for Free (Almost) Fresh air cooled data centres simply draw fresh air from outside (via filters) and pump it under the plenum floor rather than the refrigerated and recycled air that is used in 20th Century Data Centres (see picture above). This approach can reduce the energy required to cool a site by 80% [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/04/18/fresh-air-in-data-centres/feed/</wfw:commentRss>
		<slash:comments>5</slash:comments>
		</item>
		<item>
		<title>How did it all get started?</title>
		<link>http://www.thehotaisle.com/2008/04/18/how-did-it-all-get-started/</link>
		<comments>http://www.thehotaisle.com/2008/04/18/how-did-it-all-get-started/#comments</comments>
		<pubDate>Fri, 18 Apr 2008 17:58:54 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Contamination]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Mechanical]]></category>
		<category><![CDATA[Reliability & Availability]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Plenum Floor]]></category>
		<category><![CDATA[Raised Floor]]></category>
		<category><![CDATA[Static Electricity]]></category>
		<category><![CDATA[Temperature]]></category>

		<guid isPermaLink="false">http://thehotaisle.com/?p=5</guid>
		<description><![CDATA[How did we get to the modern data centre design?  Why do most data centres look the same? Why are they so inefficient in how they consume electrical power? Why do they typically have a raised plenum floor and air handling units that keep air at fixed temperature ranges and humidity levels? I guess the [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/04/18/how-did-it-all-get-started/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Where does all the Power go?</title>
		<link>http://www.thehotaisle.com/2008/04/18/where-does-all-the-power-go/</link>
		<comments>http://www.thehotaisle.com/2008/04/18/where-does-all-the-power-go/#comments</comments>
		<pubDate>Fri, 18 Apr 2008 17:56:11 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Electrical Systems]]></category>
		<category><![CDATA[21st Century Data Centre]]></category>
		<category><![CDATA[AC Power]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[DC Power]]></category>
		<category><![CDATA[Electricity]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[M&E]]></category>
		<category><![CDATA[Power]]></category>

		<guid isPermaLink="false">http://thehotaisle.com/?p=6</guid>
		<description><![CDATA[Where does all the power go? Electrical power generally originates from a machine that turns water into steam to turn turbines (or HEP, Gas Turbine) &#8211; in all cases some form of original energy is used to drive a generator set. Typical coal, nuclear or oil fired power stations generate steam to drive the generators. [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/04/18/where-does-all-the-power-go/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
	</channel>
</rss>

