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	<title>Comments on: Amazon&#8217;s EBS (Elastic Block Store)</title>
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		<title>By: Malika Pergola</title>
		<link>http://www.derivante.com/2008/08/21/amazons-ebs-elastic-block-store/comment-page-1/#comment-415</link>
		<dc:creator>Malika Pergola</dc:creator>
		<pubDate>Fri, 05 Mar 2010 05:21:24 +0000</pubDate>
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		<description>Can I order more then one at a time?</description>
		<content:encoded><![CDATA[<p>Can I order more then one at a time?</p>
]]></content:encoded>
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		<title>By: Peet</title>
		<link>http://www.derivante.com/2008/08/21/amazons-ebs-elastic-block-store/comment-page-1/#comment-373</link>
		<dc:creator>Peet</dc:creator>
		<pubDate>Mon, 26 Oct 2009 12:16:53 +0000</pubDate>
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		<description>Yeah great article! Thanks :)</description>
		<content:encoded><![CDATA[<p>Yeah great article! Thanks <img src='http://www.derivante.com/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /> </p>
]]></content:encoded>
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		<link>http://www.derivante.com/2008/08/21/amazons-ebs-elastic-block-store/comment-page-1/#comment-110</link>
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		<pubDate>Thu, 21 May 2009 20:04:56 +0000</pubDate>
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		<title>By: Hardware News</title>
		<link>http://www.derivante.com/2008/08/21/amazons-ebs-elastic-block-store/comment-page-1/#comment-72</link>
		<dc:creator>Hardware News</dc:creator>
		<pubDate>Sat, 04 Oct 2008 09:23:22 +0000</pubDate>
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		<description>Very nice article</description>
		<content:encoded><![CDATA[<p>Very nice article</p>
]]></content:encoded>
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	<item>
		<title>By: Justin Leider</title>
		<link>http://www.derivante.com/2008/08/21/amazons-ebs-elastic-block-store/comment-page-1/#comment-71</link>
		<dc:creator>Justin Leider</dc:creator>
		<pubDate>Thu, 21 Aug 2008 18:31:27 +0000</pubDate>
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		<description>Rusty,

I share your concerns about performance trade offs as well. I received an email from RightScale earlier today as well claiming this:

&quot;EBS is a new Amazon Web Service that provides reliable mountable storage volumes that operate separately from EC2 instances – but at local disk speeds.&quot;

However, I have not had the opportunity to confirm this just yet. The best solution for optimal performance currently is just to keep as much data cached in RAM as possible, crude but effective.

- Justin</description>
		<content:encoded><![CDATA[<p>Rusty,</p>
<p>I share your concerns about performance trade offs as well. I received an email from RightScale earlier today as well claiming this:</p>
<p>&#8220;EBS is a new Amazon Web Service that provides reliable mountable storage volumes that operate separately from EC2 instances – but at local disk speeds.&#8221;</p>
<p>However, I have not had the opportunity to confirm this just yet. The best solution for optimal performance currently is just to keep as much data cached in RAM as possible, crude but effective.</p>
<p>- Justin</p>
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	<item>
		<title>By: Rusty</title>
		<link>http://www.derivante.com/2008/08/21/amazons-ebs-elastic-block-store/comment-page-1/#comment-70</link>
		<dc:creator>Rusty</dc:creator>
		<pubDate>Thu, 21 Aug 2008 18:25:11 +0000</pubDate>
		<guid isPermaLink="false">http://justinleider.wordpress.com/?p=28#comment-70</guid>
		<description>ESB sounds terrific and provides a great persistence foundation for EC2, however I&#039;m not convinced I would want to run a web facing database on EBS volumes. Mostly because I suspect the IO&#039;s per second are orders of magnitude slower then SAN or iSCSI interfaces. Granted, a large number of the database should be in cache, but given how sensitive Databases are to IO performance this seems like a big risk.</description>
		<content:encoded><![CDATA[<p>ESB sounds terrific and provides a great persistence foundation for EC2, however I&#8217;m not convinced I would want to run a web facing database on EBS volumes. Mostly because I suspect the IO&#8217;s per second are orders of magnitude slower then SAN or iSCSI interfaces. Granted, a large number of the database should be in cache, but given how sensitive Databases are to IO performance this seems like a big risk.</p>
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		<title>By: Running your own hardware Vs. EC2 and RightScale &#171; Justin D. Leider&#8217;s Think Tank</title>
		<link>http://www.derivante.com/2008/08/21/amazons-ebs-elastic-block-store/comment-page-1/#comment-69</link>
		<dc:creator>Running your own hardware Vs. EC2 and RightScale &#171; Justin D. Leider&#8217;s Think Tank</dc:creator>
		<pubDate>Thu, 21 Aug 2008 14:59:41 +0000</pubDate>
		<guid isPermaLink="false">http://justinleider.wordpress.com/?p=28#comment-69</guid>
		<description>[...] UPDATE 8/21/08: Amazon releases persistent storage. [...]</description>
		<content:encoded><![CDATA[<p>[...] UPDATE 8/21/08: Amazon releases persistent storage. [...]</p>
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