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	<title>The Hot Aisle &#187; Electrical Systems</title>
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	<link>http://www.thehotaisle.com</link>
	<description>Fresh Thinking on IT Operations</description>
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			<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 SATA are getting [...]]]></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>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 from [...]]]></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>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 floor, [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2010/01/13/knowledge-is-power/feed/</wfw:commentRss>
		<slash:comments>6</slash:comments>
		</item>
		<item>
		<title>Want to understand the Smart Grid?</title>
		<link>http://www.thehotaisle.com/2009/12/25/want-to-understand-the-smart-grid/</link>
		<comments>http://www.thehotaisle.com/2009/12/25/want-to-understand-the-smart-grid/#comments</comments>
		<pubDate>Fri, 25 Dec 2009 12:02:25 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Electrical Systems]]></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[Electricity]]></category>
		<category><![CDATA[energy efficiency]]></category>
		<category><![CDATA[Government]]></category>
		<category><![CDATA[Green Ideas]]></category>
		<category><![CDATA[Investment]]></category>
		<category><![CDATA[IT Infrastructure]]></category>
		<category><![CDATA[IT Operations]]></category>
		<category><![CDATA[Leadership]]></category>
		<category><![CDATA[M&E]]></category>
		<category><![CDATA[News]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[PUE]]></category>
		<category><![CDATA[Research]]></category>
		<category><![CDATA[Sustainability]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1851</guid>
		<description><![CDATA[

Here is a video from my friend Professor Masood Amin @Massoud_Amin who is the world authority on Smart Grid. If we want to save the planet from global warming, prevent terrorists shutting down our economy and prevent catastrophic failure of our power distribution systems. This is the template of what we need to do and [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2009/12/25/want-to-understand-the-smart-grid/feed/</wfw:commentRss>
		<slash:comments>2</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>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 least) unsophisticated. A [...]]]></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>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>Cleansource UPS &#8211; No batteries &#8211; Just a flywheel</title>
		<link>http://www.thehotaisle.com/2009/09/11/cleansource-ups/</link>
		<comments>http://www.thehotaisle.com/2009/09/11/cleansource-ups/#comments</comments>
		<pubDate>Thu, 10 Sep 2009 23:14:53 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Electrical Systems]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[IT Operations]]></category>
		<category><![CDATA[Mechanical]]></category>
		<category><![CDATA[21st Century Data Centre]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Electricity]]></category>
		<category><![CDATA[energy efficiency]]></category>
		<category><![CDATA[Green Ideas]]></category>
		<category><![CDATA[M&E]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[Reliability]]></category>
		<category><![CDATA[Service Protection]]></category>
		<category><![CDATA[UPS]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/2009/09/11/cleansource-ups/</guid>
		<description><![CDATA[



Sometimes the IT business and technology in general gets it right by looking back into history for sensible solutions to intractable problems. By combining modern engineering with old designs we get something extremely smart. To provide stay up power whilst our engines get up to speed we can now use flywheel technology to store kinetic [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2009/09/11/cleansource-ups/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>How long before the US national power grid fails again?</title>
		<link>http://www.thehotaisle.com/2009/06/07/how-long-before-the-us-national-power-grid-fails-again/</link>
		<comments>http://www.thehotaisle.com/2009/06/07/how-long-before-the-us-national-power-grid-fails-again/#comments</comments>
		<pubDate>Sun, 07 Jun 2009 14:00:15 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Conferences]]></category>
		<category><![CDATA[Electrical Systems]]></category>
		<category><![CDATA[Feature]]></category>
		<category><![CDATA[AC Power]]></category>
		<category><![CDATA[Cascade Failure]]></category>
		<category><![CDATA[Collaboration]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Decision Making]]></category>
		<category><![CDATA[Government]]></category>
		<category><![CDATA[Government Policy]]></category>
		<category><![CDATA[Investment]]></category>
		<category><![CDATA[Leadership]]></category>
		<category><![CDATA[Maintenance]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[Service Protection]]></category>
		<category><![CDATA[Sustainability]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1410</guid>
		<description><![CDATA[

It&#8217;s a pretty good question given the perilous state of the US power distribution network, the ever increasing load and the ever increasing dependance (around the world) for US based IT and network systems.
My friend Professor Massoud Amin (the global authority on what is wrong and how to fix it) is running a free webinar [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2009/06/07/how-long-before-the-us-national-power-grid-fails-again/feed/</wfw:commentRss>
		<slash:comments>3</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 to deploy [...]]]></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>Power Grid Hacked by China?</title>
		<link>http://www.thehotaisle.com/2009/04/09/power-grid-hacked-by-china/</link>
		<comments>http://www.thehotaisle.com/2009/04/09/power-grid-hacked-by-china/#comments</comments>
		<pubDate>Thu, 09 Apr 2009 00:02:18 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Electrical Systems]]></category>
		<category><![CDATA[Feature]]></category>
		<category><![CDATA[News]]></category>
		<category><![CDATA[Reliability & Availability]]></category>
		<category><![CDATA[Government]]></category>
		<category><![CDATA[house of representatives]]></category>
		<category><![CDATA[IT]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[Reliability]]></category>
		<category><![CDATA[Research]]></category>
		<category><![CDATA[Security]]></category>
		<category><![CDATA[Software]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1301</guid>
		<description><![CDATA[

WASHINGTON (Reuters) &#8211; U.S. concerns about the potential for cyber-attacks on critical infrastructure extended to the American electrical power grid on Wednesday and experts pointed the finger anew at Chinese hackers, among others.
U.S. Homeland Security Secretary Janet Napolitano told reporters the power grid is vulnerable to potentially disabling computer attacks, while declining to comment on [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2009/04/09/power-grid-hacked-by-china/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>The low energy light-bulbs that don&#8217;t work</title>
		<link>http://www.thehotaisle.com/2009/03/29/the-low-energy-light-bulbs-that-dont-work/</link>
		<comments>http://www.thehotaisle.com/2009/03/29/the-low-energy-light-bulbs-that-dont-work/#comments</comments>
		<pubDate>Sun, 29 Mar 2009 11:31:45 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Electrical Systems]]></category>
		<category><![CDATA[Feature]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[Business]]></category>
		<category><![CDATA[consumers]]></category>
		<category><![CDATA[Electricity]]></category>
		<category><![CDATA[Government]]></category>
		<category><![CDATA[low energy]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[Problems]]></category>
		<category><![CDATA[SAN]]></category>
		<category><![CDATA[Temperature]]></category>
		<category><![CDATA[UPS]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1276</guid>
		<description><![CDATA[

We have all been doing this &#8211; buy some new light bulbs, screw them in, and save the planet &#8211; simple. It was until I picked up an interesting article in today&#8217;s New York Times:
A lot of people these days are finding the new compact fluorescent bulbs anything but simple. Consumers who are trying them say they [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2009/03/29/the-low-energy-light-bulbs-that-dont-work/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>Low Energy light-bulb tips</title>
		<link>http://www.thehotaisle.com/2009/03/29/low-energy-light-bulb-tips/</link>
		<comments>http://www.thehotaisle.com/2009/03/29/low-energy-light-bulb-tips/#comments</comments>
		<pubDate>Sun, 29 Mar 2009 11:28:13 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Contamination]]></category>
		<category><![CDATA[Electrical Systems]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[airflow]]></category>
		<category><![CDATA[consumers]]></category>
		<category><![CDATA[low energy]]></category>
		<category><![CDATA[Research]]></category>
		<category><![CDATA[Temperature]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1278</guid>
		<description><![CDATA[

Look for bulbs with the Energy Star label, which indicates they meet at least minimal performance requirements.
Be aware that compact fluorescents can take one to three minutes to reach full brightness. This is not a defect.
The place where people are most likely to use compact fluorescents, closets, may be a poor choice. Experts at Energy Star [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2009/03/29/low-energy-light-bulb-tips/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>US makes a start on Green Energy</title>
		<link>http://www.thehotaisle.com/2009/03/26/us-makes-a-start-on-green-energy/</link>
		<comments>http://www.thehotaisle.com/2009/03/26/us-makes-a-start-on-green-energy/#comments</comments>
		<pubDate>Thu, 26 Mar 2009 05:53:31 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Electrical Systems]]></category>
		<category><![CDATA[Feature]]></category>
		<category><![CDATA[News]]></category>
		<category><![CDATA[bbc]]></category>
		<category><![CDATA[Electricity]]></category>
		<category><![CDATA[green energy]]></category>
		<category><![CDATA[IT]]></category>
		<category><![CDATA[jobs]]></category>
		<category><![CDATA[mojave desert]]></category>
		<category><![CDATA[Power]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=1267</guid>
		<description><![CDATA[

The BBC reports today that state supported and practical steps are being taken to train the young solar and wind power engineers of the future. The guys who install and maintain wind turbines and solar panels.
In Tehachapi, California, it can feel like four seasons in one day. In this remote corner between the Sierra Nevada and [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2009/03/26/us-makes-a-start-on-green-energy/feed/</wfw:commentRss>
		<slash:comments>2</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>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 distribution [...]]]></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>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 sites that [...]]]></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>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 about [...]]]></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>A Less Well-Oiled War Machine</title>
		<link>http://www.thehotaisle.com/2008/10/17/a-less-well-oiled-war-machine/</link>
		<comments>http://www.thehotaisle.com/2008/10/17/a-less-well-oiled-war-machine/#comments</comments>
		<pubDate>Fri, 17 Oct 2008 14:39:31 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Electrical Systems]]></category>
		<category><![CDATA[Feature]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[Biomass]]></category>
		<category><![CDATA[Electricity]]></category>
		<category><![CDATA[energy bills]]></category>
		<category><![CDATA[energy efficiency]]></category>
		<category><![CDATA[energy managers]]></category>
		<category><![CDATA[Finance]]></category>
		<category><![CDATA[generation facility]]></category>
		<category><![CDATA[geothermal power plants]]></category>
		<category><![CDATA[Government]]></category>
		<category><![CDATA[mojave desert]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[price of oil]]></category>
		<category><![CDATA[renewable energy technologies]]></category>
		<category><![CDATA[saving the planet]]></category>
		<category><![CDATA[Sustainability]]></category>
		<category><![CDATA[Temperature]]></category>
		<category><![CDATA[us department of defence]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=896</guid>
		<description><![CDATA[

I am a member of the IEEE and receive a great magazine called IEEE Spectrum in the mail. A recent article describes the incredibly advanced thinking within the US Department of Defence on Energy conservation. Why are the DoD so interested in saving the planet? As usual it is driven by economics:
Every $10 increase in [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/10/17/a-less-well-oiled-war-machine/feed/</wfw:commentRss>
		<slash:comments>1</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 is [...]]]></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 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>Keeping your engines ready to go</title>
		<link>http://www.thehotaisle.com/2008/06/23/keeping-your-engines-ready-to-go/</link>
		<comments>http://www.thehotaisle.com/2008/06/23/keeping-your-engines-ready-to-go/#comments</comments>
		<pubDate>Mon, 23 Jun 2008 13:45:14 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Electrical Systems]]></category>
		<category><![CDATA[Mechanical]]></category>
		<category><![CDATA[Reliability & Availability]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Maintenance]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[Problems]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=119</guid>
		<description><![CDATA[

If, like most of us, you use a diesel generator as a backup power source during electrical outages, you need to understand something about Data Center engines and how to keep them running sweetly, starting automatically and reliably. It is horribly career limiting to spend your shareholders money on some equipment that you only need once every [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/06/23/keeping-your-engines-ready-to-go/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>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 problem [...]]]></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>Proactive Maintenance prevents Pyrotechnics</title>
		<link>http://www.thehotaisle.com/2008/05/11/proactive-maintenance-prevents-pyrotechnics/</link>
		<comments>http://www.thehotaisle.com/2008/05/11/proactive-maintenance-prevents-pyrotechnics/#comments</comments>
		<pubDate>Sun, 11 May 2008 00:30:48 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Electrical Systems]]></category>
		<category><![CDATA[Argonite]]></category>
		<category><![CDATA[Cascade Failure]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Electricity]]></category>
		<category><![CDATA[Fire Detection]]></category>
		<category><![CDATA[Fire Suppressant]]></category>
		<category><![CDATA[Maintenance]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[Problems]]></category>
		<category><![CDATA[Temperature]]></category>
		<category><![CDATA[Thermal Imaging]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=34</guid>
		<description><![CDATA[


Way, way back in the stone age (whilst I was a student) I worked in the Edinburgh University Computer Labs keeping all of the hardware going. I had got a report of a DEC PDP 9 (drop me a mail if you know what one of these is) that kept restarting every few days all [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/05/11/proactive-maintenance-prevents-pyrotechnics/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>How do I know if my Data Center is about to fall over?</title>
		<link>http://www.thehotaisle.com/2008/05/09/how-do-i-know-if-my-data-center-is-about-to-fall-over/</link>
		<comments>http://www.thehotaisle.com/2008/05/09/how-do-i-know-if-my-data-center-is-about-to-fall-over/#comments</comments>
		<pubDate>Fri, 09 May 2008 13:24:06 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Electrical Systems]]></category>
		<category><![CDATA[Reliability & Availability]]></category>
		<category><![CDATA[Cascade Failure]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[Electricity]]></category>
		<category><![CDATA[IT Operations]]></category>
		<category><![CDATA[M&E]]></category>
		<category><![CDATA[Maintenance]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[Problems]]></category>
		<category><![CDATA[Service Protection]]></category>
		<category><![CDATA[UPS]]></category>

		<guid isPermaLink="false">http://www.thehotaisle.com/?p=29</guid>
		<description><![CDATA[


We all worry about failures in our data centers, some types of failure more than others. Losing a server is bad, losing a storage array extremely bad! How then might we categorize a full power failure in a data centre? Catastrophic certainly, even careless perhaps?
I can hear the questions already:
How could I have a full [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/05/09/how-do-i-know-if-my-data-center-is-about-to-fall-over/feed/</wfw:commentRss>
		<slash:comments>4</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>Why is the Cost of Electricity Growing?</title>
		<link>http://www.thehotaisle.com/2008/04/27/why-is-the-cost-of-electricity-growing/</link>
		<comments>http://www.thehotaisle.com/2008/04/27/why-is-the-cost-of-electricity-growing/#comments</comments>
		<pubDate>Sun, 27 Apr 2008 17:26:03 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Electrical Systems]]></category>
		<category><![CDATA[IT Leadership]]></category>
		<category><![CDATA[Electricity]]></category>
		<category><![CDATA[Government Policy]]></category>
		<category><![CDATA[Green Ideas]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[Sustainability]]></category>

		<guid isPermaLink="false">http://thehotaisle.com/?p=49</guid>
		<description><![CDATA[

Electricity is a traded commodity with a Futures Market, exactly like oil, tea and pork bellies. The wholesale electricity price is driven by analysts’ perceptions of the relationship between supply (how much is readily available and at what cost) and demand (how much is required now and in the future).
The wholesale electricity price is one of the [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/04/27/why-is-the-cost-of-electricity-growing/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>When things go wrong &#8211; Batteries</title>
		<link>http://www.thehotaisle.com/2008/04/18/when-things-go-wrong-batteries/</link>
		<comments>http://www.thehotaisle.com/2008/04/18/when-things-go-wrong-batteries/#comments</comments>
		<pubDate>Fri, 18 Apr 2008 18:43:41 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Electrical Systems]]></category>
		<category><![CDATA[Fire Protection]]></category>
		<category><![CDATA[Cooling]]></category>
		<category><![CDATA[Data Center]]></category>
		<category><![CDATA[DC Power]]></category>
		<category><![CDATA[Electricity]]></category>
		<category><![CDATA[Fire Detection]]></category>
		<category><![CDATA[M&E]]></category>
		<category><![CDATA[Maintenance]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[Problems]]></category>
		<category><![CDATA[Service Protection]]></category>
		<category><![CDATA[Temperature]]></category>

		<guid isPermaLink="false">http://thehotaisle.com/?p=14</guid>
		<description><![CDATA[

The thing about data centers is just how much power they use.  This one in Cardiff, Wales uses about 20MW of power and has huge strings of batteries storing power to drive the UPS units.  The batteries are kept in dedicated battery rooms that are air conditioned to keep the cells cool and maintain a [...]]]></description>
		<wfw:commentRss>http://www.thehotaisle.com/2008/04/18/when-things-go-wrong-batteries/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>DC Power &#8211; Why it is important?</title>
		<link>http://www.thehotaisle.com/2008/04/18/dc-power/</link>
		<comments>http://www.thehotaisle.com/2008/04/18/dc-power/#comments</comments>
		<pubDate>Fri, 18 Apr 2008 18:09:14 +0000</pubDate>
		<dc:creator>Steve O'Donnell</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Electrical Systems]]></category>
		<category><![CDATA[21st Century Data Centre]]></category>
		<category><![CDATA[DC Power]]></category>
		<category><![CDATA[Electricity]]></category>
		<category><![CDATA[Green Ideas]]></category>
		<category><![CDATA[Green IT]]></category>
		<category><![CDATA[PDU]]></category>
		<category><![CDATA[Power]]></category>
		<category><![CDATA[Power Density]]></category>
		<category><![CDATA[Service Protection]]></category>
		<category><![CDATA[Sustainability]]></category>

		<guid isPermaLink="false">http://thehotaisle.com/?p=9</guid>
		<description><![CDATA[

DC Power in Data Centres

The discussions amongst Data Centre specialist about the relative benefits of AC and DC are by far the most heated.  In my opinion these are mainly driven by the technology that the protagonists are most comfortable with.  The 20th Century Data Centre guys are all into AC, it is [...]]]></description>
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		<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>
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		<slash:comments>0</slash:comments>
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