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	<title>Canada&#039;s online magazine: Politics, entertainment, technology, media, arts, books: backofthebook.ca &#187; virtualization</title>
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		<title>Spies unplugged</title>
		<link>http://backofthebook.ca/2007/06/24/spies-unplugged/838/</link>
		<comments>http://backofthebook.ca/2007/06/24/spies-unplugged/838/#comments</comments>
		<pubDate>Mon, 25 Jun 2007 03:06:00 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Technology]]></category>
		<category><![CDATA[computers]]></category>
		<category><![CDATA[National Security Agency]]></category>
		<category><![CDATA[servers]]></category>
		<category><![CDATA[virtualization]]></category>

		<guid isPermaLink="false">http://backofthebook.ca/?p=838</guid>
		<description><![CDATA[American spy agency the National Security Agency (NSA) is running out of juice. They don&#8217;t have enough electricity for all their gear, and are thus suffering power outages and brown outs. According to an article at baltimoresun.com, things could get worse as summer comes on. When you add a lot of machines to a facility, [...]]]></description>
			<content:encoded><![CDATA[<p>American spy agency the National Security Agency (NSA) is running out of juice.  They don&#8217;t have enough electricity for all their gear, and are thus suffering power outages and brown outs.  According to an <a href="http://www.baltimoresun.com/news/nationworld/bal-te.nsapower24jun24,0,1724991.story?coll=bal-home-headlines">article at baltimoresun.com</a>, things could get worse as summer comes on.  When you add a lot of machines to a facility, there is a corresponding need to be able to maintain a suitable operating temperature in the facility by bumping up the air conditioning.  Air conditioning is also going to place demands on the electrical system. From the <span style="font-style:italic;">Sun</span>:</p>
<p><a name="anchor28"><br />
<blockquote>&#8220;The</p></blockquote>
<p></a> problem was first brought to the attention of then-Director Kenneth Minihan in 1998 as he prepared to upgrade the agency&#8217;s technology infrastructure. But he chose not to pay for electricity upgrades along with the new technology infrastructure, the senior intelligence official said. Minihan did not respond to requests for comment.&#8221;<br />After the attacks on the World Trade Center and Pentagon on September 11th, 2001, the NSA&#8217;s computing resources have been increased further.  Now they don&#8217;t have the juice to run it all.</p>
<p>My favorite quote from the article is &#8220;However, lawmakers also reprimanded the NSA, intelligence officials said, for using money for spy operations to pay for electrical expenses without congressional approval.&#8221;  Of course, congress might argue that spies have existed for ages prior to the invention of electricity.  Perhaps the NSA should simply put a bunch of guys in hose and capes and wide brimmed hats with a stylish feather in the band, then have them hang out in the shadows of pubs and taverns inconspicuously eavesdropping on the conversation of patrons.</p>
<p>One really can&#8217;t defend the NSA for its lack of foresight, but it should be noted that they&#8217;re not alone.  Here in Vancouver, Canada, several major collocation facilities have been squeezed for power as well.  However, in that case the culprit wasn&#8217;t supercomputers, but rather a machine on the other end of the spectrum, the lowly 1U rackmount PC.</p>
<p><center><img src="http://hominids.com/lab/graphics/bob/1u.jpg" /></center></p>
<p><img src="http://hominids.com/lab/graphics/bob/rack.jpg" align="left" hspace="12" /> </p>
<p>Once upon a time, the word &#8220;server&#8221; conjured an image of a computer in a full tower case.  Now such computers look positively antique.  Towers are mostly mid-tower size, and server rooms may have rackfulls of rackmount computers, each one with its own power supply and <a href="http://en.wikipedia.org/wiki/Easy_bake_oven">Easy-Bake Oven</a> of a processor.  On the up side these rackmount computers allow more computing power to be packed into less space than ever before, but on the downside they really drive up the need for electricity and air conditioning.  The NSA is not the only entity wrestling with these problems.</p>
<p>In the long run, the solution may be multicore processors and virtualization.  In a <a href="http://backofthebook.ca/2007/02/11/windows-linux-osx-why-choose/834/">past entry</a> I touched on the subject of running operating systems in virtual machines.  The problem with this approach is that each operating system places its demands on the processor.  But with one of these <a href="http://www.intel.com/research/platform/terascale/teraflops.htm">80 core babies that Intel is developing</a>, there are plenty of cores to serve many virtual machines.  A machine with a processor like this, scads of RAM, loads of storage, and a big pipe connection to the network could replace a couple of racks of rackmounts at a fraction of the power cost.</p>
<p>Perhaps the NSA should be spying on Intel &#8212; if they aren&#8217;t already.</p>
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		<title>Windows? Linux? OS/X? Why choose?</title>
		<link>http://backofthebook.ca/2007/02/11/windows-linux-osx-why-choose/834/</link>
		<comments>http://backofthebook.ca/2007/02/11/windows-linux-osx-why-choose/834/#comments</comments>
		<pubDate>Sun, 11 Feb 2007 21:26:00 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Technology]]></category>
		<category><![CDATA[Apple]]></category>
		<category><![CDATA[computers]]></category>
		<category><![CDATA[digital restriction management]]></category>
		<category><![CDATA[digital rights management]]></category>
		<category><![CDATA[Linux]]></category>
		<category><![CDATA[OS/X]]></category>
		<category><![CDATA[ubuntu]]></category>
		<category><![CDATA[virtualization]]></category>
		<category><![CDATA[Windows]]></category>

		<guid isPermaLink="false">http://backofthebook.ca/?p=834</guid>
		<description><![CDATA[What the devil are we going to do with all the power that the latest computers offer, given that soon you won&#8217;t be able to buy a machine with less than two cores on the CPU and less than a gigabyte of RAM? Well, one possibility that more and more people are taking advantage of [...]]]></description>
			<content:encoded><![CDATA[<p>What the devil are we going to do with all the power that the latest computers offer, given that soon you won&#8217;t be able to buy a machine with less than two cores on the <a href="http://en.wikipedia.org/wiki/Cpu">CPU</a> and less than a gigabyte of RAM?  Well, one possibility that more and more people are taking advantage of is the ability to run multiple operating systems <i>at the same time</i>. </p>
<p>I&#8217;m not talking dual boot here, where you choose which operating system (OS) you want to run when the computer starts.  I&#8217;m talking about <a name="anchor12">working</a> happily away in Linux, feeling a need to run a Windows application, then firing up XP in a window <i>as though it were an application itself</i>, and then running the Windows application there.  When done, one can then shut down Windows or effectively alt+tab back to Linux.</p>
<p>How is this magic performed?  Through the emergence of virtual machines.  A virtual machine is a computer created entirely in software.  Once you&#8217;ve created one on your desktop or notebook, you can then install any supported operating system on it, and run applications within it.</p>
<p>Here is a screen shot of Windows running in a virtual machine under Linux.  The window manager being used here, <a href="http://www.windowmaker.info/">WindowMaker</a>, isn&#8217;t from by one of the standard, windowsy software developers like KDE or Gnome, but I like it.
<p align="center"><a href="http://hominids.com/lab/graphics/vmxp.800.jpg"><img src="http://hominids.com/lab/graphics/vmxp.thumb.jpg" /></a></p>
<p>The reverse is also an option &#8212; running XP and firing up Linux.  While this seems a somewhat odd choice, eschewing the stability and security of Linux as the host OS in favour of an OS not noted for these qualities, it would be an interesting option for the Windows user wanting to try Linux without messing at all with their hardware. (If you&#8217;re interested in giving Linux a shot, there are a lot of distributions out there, but the most popular at the moment are <a href="http://fedora.redhat.com/">Fedora</a> and <a href="http://www.ubuntu.com/">Ubuntu</a>. I recommend the <a href="http://www.kubuntu.org/">Kubuntu</a> flavour of Ubuntu for Windows users, as it&#8217;s the most Windows-like.)</p>
<p>But first you have to create that virtual machine. For PCers, the software to use is <a href="http://www.vmware.com/products/ws/">VMware Workstation</a>.  It&#8217;s a bit pricey at $189.00, but the 30 day free trial is completely functional, and once it expires you can use the free VMplayer to continue to run any virtual machines you&#8217;ve created.  At the moment, VMware does not support OS/X, so PC users can&#8217;t use it to create a virtual Mac (<a href="http://money.cnn.com/2007/01/19/technology/fastforward_parallels.fortune/">or are on their own if they try</a>).  VMware also has a free product, <a href="http://www.vmware.com/products/converter/">VMware Converter</a>, which offers to &#8220;virtualize&#8221; an existing Windows install, but I haven&#8217;t tried it so won&#8217;t comment, other than to say it looks interesting.  </p>
<p>Mac users are especially blessed in that they can use all operating system families that run on Intel/AMD processors, with OS/X as the host and virtual machines for the others.  The software that performs the magic is called <a href="http://www.parallels.com/en/products/desktop/">Parallels Desktop</a> (cost, $79.99).  It looks as though Parallels has released a product for the PC as well for $49.99, <a href="http://www.parallels.com/en/products/workstation/">Parallels Workstation</a>.  I may give that a try.  If the Parallels offering is as good as VMware Workstation, that could be bad news for the latter, though VMware still seems to regard developers, not home users, as its primary market. I get the impression that Parallels has a better appreciation of where this market is going.</p>
<p>Virtual machines are limited only by the hardware resources at hand. Each virtual machine eats a chunk of RAM and consumes CPU cycles. Until recently, that meant they were mostly used by software developers with enterprise level hardware to play with. But thanks to the ever increasing power of run-of-the-mill PCs, and, in the case of the Mac, Apple&#8217;s brilliant decision to go with multicore Intel processors, they&#8217;ve now become an option for ordinary mortals.</p>
<p>Microsoft, ever wary of potential threats to their monopoly, <a href="http://www.techweb.com/showArticle.jhtml?articleID=193303429">will not allow regular versions of Vista to be run on a virtual machine</a>.  Instead they require those wishing to do so to buy a special, more expensive version called Vista <span style="font-style:italic;">Uber Alles</span>. (Okay, the real name is &#8220;Ultimate&#8221;.) Vista Business and Enterprise are allowed as well, though Enterprise is the really good one mere human beings can&#8217;t buy, and shouldn&#8217;t look for through, say, unlicensed channels like <a href="http://thepiratebay.org">thepiratebay.org</a>.  It probably hasn&#8217;t been cracked yet, anyway.</p>
<p>My solution?  Forget about Vista and run Windows 98SE, or 2000, or XP, ideally in the corporate version that doesn&#8217;t require activation.  Again, don&#8217;t go looking for the corporate XP at a site like <a href="http://the piratebay.org">thepiratebay.org</a>;  if you do, the <a href="http://en.wikipedia.org/wiki/Business_Software_Alliance">BSA</a> will get you.
<p align="center" style="font-size: 10px"><img src="http://hominids.com/lab/graphics/bsarep.jpg" /></p>
<p>Friendly BSA Representative</p>
<p>While I am a die hard Linux user, I do acknowledge there are some things for which Windows is better &#8212; backing up DVDs, for example.  Of course, the best Windows software for this can&#8217;t be downloaded from the developer&#8217;s sites since they&#8217;re afraid of corporate lawyer assassins, so you have to know how to look for it and not get infected with a lot of spyware/adware/trojans along the way.  Which just reinforces my love of Linux, especially the culture.  And now, not being able to run Windows software isn&#8217;t a problem.  Because I can.</p>
<p>But it might not be long before I switch platform to Mac.  OS/X, Linux, and Windows, all running on a single machine?  Sweet.</p>
<p align="center">- o -</p>
<p>I wrote in an <a href="http://backofthebook.ca/2007/01/28/a-tale-of-two-ethics/836/">earlier entry</a> about Bill Gates <a href="http://news.bbc.co.uk/1/hi/technology/6182657.stm">actually becoming critical of some Digital Rights Management</a> (more accurately known as Digital Restriction Management).  Now <a href="http://www.apple.com/hotnews/thoughtsonmusic/">Steve Jobs has joined in the criticism</a>.  Apparently iTunes has to have DRM because the record labels insist.  It&#8217;s not Apple&#8217;s fault.</p>
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