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	<title>The Hot Aisle &#187; Raised Floor</title>
	<atom:link href="http://www.thehotaisle.com/tag/raised-floor/feed/" rel="self" type="application/rss+xml" />
	<link>http://www.thehotaisle.com</link>
	<description>Fresh Thinking on IT Operations</description>
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		<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>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>Data Center Predictions for 2010</title>
		<link>http://www.thehotaisle.com/2010/01/14/data-center-predictions-for-2010/</link>
		<comments>http://www.thehotaisle.com/2010/01/14/data-center-predictions-for-2010/#comments</comments>
		<pubDate>Thu, 14 Jan 2010 14:58:22 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Cloud]]></category>
		<category><![CDATA[Contamination]]></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[Reliability & Availability]]></category>
		<category><![CDATA[21st Century Data Centre]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[DC Power]]></category>
		<category><![CDATA[Electricity]]></category>
		<category><![CDATA[energy efficiency]]></category>
		<category><![CDATA[Investment]]></category>
		<category><![CDATA[M&E]]></category>
		<category><![CDATA[Maintenance]]></category>
		<category><![CDATA[Plenum Floor]]></category>
		<category><![CDATA[Power Density]]></category>
		<category><![CDATA[PUE]]></category>
		<category><![CDATA[Raised Floor]]></category>
		<category><![CDATA[Reliability]]></category>
		<category><![CDATA[Security]]></category>
		<category><![CDATA[Service Protection]]></category>
		<category><![CDATA[Temperature]]></category>
		<category><![CDATA[UPS]]></category>
		<category><![CDATA[Virtualization]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1878</guid>
		<description><![CDATA[Around this time, analysts at ESG pull together a ten point list of predictions for the coming year. One of my areas of coverage and of expertise is in the Data Center around power, cooling, reliability and economics. So what&#8217;s different this year from prior years? Strengthening fundamental drivers will likely make 2010 materially different [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2010/01/14/data-center-predictions-for-2010/feed/</wfw:commentRss>
		<slash:comments>3</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>Why legacy thinking costs performance, reliability and cash</title>
		<link>http://www.thehotaisle.com/2009/06/02/why-legacy-thinking-costs-performance-reliability-and-cash/</link>
		<comments>http://www.thehotaisle.com/2009/06/02/why-legacy-thinking-costs-performance-reliability-and-cash/#comments</comments>
		<pubDate>Tue, 02 Jun 2009 13:30:17 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Feature]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[IT Operations]]></category>
		<category><![CDATA[Mechanical]]></category>
		<category><![CDATA[Opinion]]></category>
		<category><![CDATA[Reliability & Availability]]></category>
		<category><![CDATA[AC Power]]></category>
		<category><![CDATA[air conditioning]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[Blade Servers]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[DC Power]]></category>
		<category><![CDATA[energy efficiency]]></category>
		<category><![CDATA[Maintenance]]></category>
		<category><![CDATA[Problems]]></category>
		<category><![CDATA[Raised Floor]]></category>
		<category><![CDATA[Reliability]]></category>
		<category><![CDATA[SAN]]></category>
		<category><![CDATA[servers]]></category>
		<category><![CDATA[UPS]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1397</guid>
		<description><![CDATA[I spend a lot of time thinking about data centers and how to make them better, more efficient, more reliable, higher performance , easier to maintain and cheaper to run. Lots of very smart and experienced people have been doing the same for many years and whilst there is no single, agreed best practice, model [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2009/06/02/why-legacy-thinking-costs-performance-reliability-and-cash/feed/</wfw:commentRss>
		<slash:comments>4</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>Why not using DC Power in the Data Center is stupid</title>
		<link>http://www.thehotaisle.com/2009/03/17/why-not-using-dc-power-in-the-data-center-is-stupid/</link>
		<comments>http://www.thehotaisle.com/2009/03/17/why-not-using-dc-power-in-the-data-center-is-stupid/#comments</comments>
		<pubDate>Tue, 17 Mar 2009 13:30:18 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Electrical Systems]]></category>
		<category><![CDATA[Feature]]></category>
		<category><![CDATA[Interviews]]></category>
		<category><![CDATA[Reliability & Availability]]></category>
		<category><![CDATA[AC Power]]></category>
		<category><![CDATA[Cabinet]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[DC Power]]></category>
		<category><![CDATA[Electricity]]></category>
		<category><![CDATA[energy savings]]></category>
		<category><![CDATA[ISP]]></category>
		<category><![CDATA[IT]]></category>
		<category><![CDATA[Maintenance]]></category>
		<category><![CDATA[PDU]]></category>
		<category><![CDATA[Raised Floor]]></category>
		<category><![CDATA[Reliability]]></category>
		<category><![CDATA[SAN]]></category>
		<category><![CDATA[servers]]></category>
		<category><![CDATA[Storage]]></category>
		<category><![CDATA[UPS]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1219</guid>
		<description><![CDATA[Last year I spoke to Ron Croce COO of Validus DC Systems about their unique approach to Data Center power provision. He and I both share strong backgrounds in power engineering and the certain knowledge that the way that data centers are powered today is fundamentally flawed. Today&#8217;s data centers take power from the grid [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2009/03/17/why-not-using-dc-power-in-the-data-center-is-stupid/feed/</wfw:commentRss>
		<slash:comments>7</slash:comments>
		</item>
		<item>
		<title>Should we allow Cellphones in the Data Center?</title>
		<link>http://www.thehotaisle.com/2008/12/06/should-we-allow-cellphones-in-the-data-center/</link>
		<comments>http://www.thehotaisle.com/2008/12/06/should-we-allow-cellphones-in-the-data-center/#comments</comments>
		<pubDate>Sat, 06 Dec 2008 19:22:24 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Electrical Systems]]></category>
		<category><![CDATA[Feature]]></category>
		<category><![CDATA[IT Operations]]></category>
		<category><![CDATA[Opinion]]></category>
		<category><![CDATA[Reliability & Availability]]></category>
		<category><![CDATA[cellphone]]></category>
		<category><![CDATA[cellular signals]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[memory]]></category>
		<category><![CDATA[parity errors]]></category>
		<category><![CDATA[Problems]]></category>
		<category><![CDATA[Raised Floor]]></category>
		<category><![CDATA[servers]]></category>
		<category><![CDATA[sun sparc]]></category>
		<category><![CDATA[system crashes]]></category>
		<category><![CDATA[Zinc Whiskers]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1121</guid>
		<description><![CDATA[This might be controversial, but yes we should allow cellphones into the Data Center. Here&#8217;s the thinking behind the answer. Way, way back many enterprise data center operators were having huge problems with Sun SPARC I servers, like the Sun 4500, unexplained crashes, hang-ups and other strange events. At the same time rumors started circulation [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/12/06/should-we-allow-cellphones-in-the-data-center/feed/</wfw:commentRss>
		<slash:comments>4</slash:comments>
		</item>
		<item>
		<title>Is it a Data Center or Santa&#8217;s Grotto?</title>
		<link>http://www.thehotaisle.com/2008/11/15/is-it-a-data-center-or-santas-grotto/</link>
		<comments>http://www.thehotaisle.com/2008/11/15/is-it-a-data-center-or-santas-grotto/#comments</comments>
		<pubDate>Sat, 15 Nov 2008 18:38:28 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Data Center Reviews]]></category>
		<category><![CDATA[Feature]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[network operations center]]></category>
		<category><![CDATA[noc]]></category>
		<category><![CDATA[nuclear bunker]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[Raised Floor]]></category>
		<category><![CDATA[Security]]></category>
		<category><![CDATA[vault doors]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1039</guid>
		<description><![CDATA[The Pionen White Mountains underground data center has fog, waterfalls, German submarine engines, simulated daylight and &#8230;. &#8230;&#8230;  was also designed to withstand a near hit from a Soviet nuclear weapon. It  is not a joke, this is a serious and real data center, a newly opened high-security site run by Banhof, one of Sweden’s largest ISPs, [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/11/15/is-it-a-data-center-or-santas-grotto/feed/</wfw:commentRss>
		<slash:comments>0</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>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>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>Fujitsu slip off whilst trying to jump on the green bandwagon</title>
		<link>http://www.thehotaisle.com/2008/07/07/fujitsu-slip-off-whilst-trying-to-jump-on-the-green-bandwagon/</link>
		<comments>http://www.thehotaisle.com/2008/07/07/fujitsu-slip-off-whilst-trying-to-jump-on-the-green-bandwagon/#comments</comments>
		<pubDate>Mon, 07 Jul 2008 11:26:56 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Data Center Reviews]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[Mechanical]]></category>
		<category><![CDATA[Reliability & Availability]]></category>
		<category><![CDATA[21st Century Data Centre]]></category>
		<category><![CDATA[Absorption Chillers]]></category>
		<category><![CDATA[CCHP]]></category>
		<category><![CDATA[Compute Power Efficiency]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Data Center Effectiveness]]></category>
		<category><![CDATA[DC Power]]></category>
		<category><![CDATA[Plenum Floor]]></category>
		<category><![CDATA[PUE]]></category>
		<category><![CDATA[Raised Floor]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=149</guid>
		<description><![CDATA[When was the last time you saw a Data Center press release that didn&#8217;t make some green or energy efficiency claim? I guess because data centers are such huge energy hogs vendors must worry that building a new one will raise the hackles of the environmentalists. Nevertheless PR agencies should really stop dressing up stories [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/07/07/fujitsu-slip-off-whilst-trying-to-jump-on-the-green-bandwagon/feed/</wfw:commentRss>
		<slash:comments>5</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>What to do if your Floor Starts Growing a Beard &#8211; Zinc Whiskers</title>
		<link>http://www.thehotaisle.com/2008/05/29/what-to-do-if-your-floor-starts-growing-a-beard-zinc-whiskers/</link>
		<comments>http://www.thehotaisle.com/2008/05/29/what-to-do-if-your-floor-starts-growing-a-beard-zinc-whiskers/#comments</comments>
		<pubDate>Thu, 29 May 2008 11:58:40 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Contamination]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Electricity]]></category>
		<category><![CDATA[Floor Tiles]]></category>
		<category><![CDATA[Maintenance]]></category>
		<category><![CDATA[Plenum Floor]]></category>
		<category><![CDATA[Problems]]></category>
		<category><![CDATA[Raised Floor]]></category>
		<category><![CDATA[Service Protection]]></category>
		<category><![CDATA[Service Recovery]]></category>
		<category><![CDATA[Zinc Whiskers]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=44</guid>
		<description><![CDATA[Zinc whiskers, although a catastrophic problem, are not new (they were discovered in 1948 by Bell Labs). They grow on many zinc coated components and structures commonly used in Data Centers. Zinc coating is used to slow the rusting of steel components. There are two types of zinc coating, Hot Dipped Galvanized (HDG) or electroplated. Only one [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/05/29/what-to-do-if-your-floor-starts-growing-a-beard-zinc-whiskers/feed/</wfw:commentRss>
		<slash:comments>3</slash:comments>
		</item>
		<item>
		<title>How do I stop my DMX-4 falling through the floor?</title>
		<link>http://www.thehotaisle.com/2008/05/20/how-do-i-stop-my-dmx-4-falling-through-the-floor/</link>
		<comments>http://www.thehotaisle.com/2008/05/20/how-do-i-stop-my-dmx-4-falling-through-the-floor/#comments</comments>
		<pubDate>Tue, 20 May 2008 22:49:23 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Mechanical]]></category>
		<category><![CDATA[Cabinet]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Floor Tiles]]></category>
		<category><![CDATA[IT Operations]]></category>
		<category><![CDATA[Maintenance]]></category>
		<category><![CDATA[Migration]]></category>
		<category><![CDATA[Plenum Floor]]></category>
		<category><![CDATA[Raised Floor]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=45</guid>
		<description><![CDATA[Floor loading is a badly understood issue in Data Centers. Not just in the place where the equipment eventually ends up but also en-route from the loading bay to the final resting place. OK, so lets start looking at the problem. Most data centers have a raised floor made of specialist tiles held up on struts and [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/05/20/how-do-i-stop-my-dmx-4-falling-through-the-floor/feed/</wfw:commentRss>
		<slash:comments>2</slash:comments>
		</item>
		<item>
		<title>How to Avoid Swimming in your Data Center</title>
		<link>http://www.thehotaisle.com/2008/05/11/how-to-avoid-swimming-in-your-data-center/</link>
		<comments>http://www.thehotaisle.com/2008/05/11/how-to-avoid-swimming-in-your-data-center/#comments</comments>
		<pubDate>Sun, 11 May 2008 16:40:42 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Contamination]]></category>
		<category><![CDATA[Reliability & Availability]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Maintenance]]></category>
		<category><![CDATA[Plenum Floor]]></category>
		<category><![CDATA[Problems]]></category>
		<category><![CDATA[Raised Floor]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=39</guid>
		<description><![CDATA[You might think that your data center is under the spotlight, constantly monitored, secure and well designed but what if I told you that typically the second most common cause of catastrophic failures (after electrical) in your Data Center are water leaks? Water can come from three main sources: Leaks inside the Data Center from [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/05/11/how-to-avoid-swimming-in-your-data-center/feed/</wfw:commentRss>
		<slash:comments>0</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>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>
	</channel>
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