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	<title>Backdrift &#187; high availability</title>
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		<title>How to Hot Add/Remove Memory from a Xen Domain</title>
		<link>http://backdrift.org/xen-memory-hot-add-and-remove</link>
		<comments>http://backdrift.org/xen-memory-hot-add-and-remove#comments</comments>
		<pubDate>Thu, 19 Mar 2009 02:22:52 +0000</pubDate>
		<dc:creator>Keith</dc:creator>
				<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[high availability]]></category>
		<category><![CDATA[linux]]></category>
		<category><![CDATA[Virtualization]]></category>
		<category><![CDATA[Xen]]></category>

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		<description><![CDATA[Overview Xen 3+ supports memory &#8220;ballooning&#8221; which allows you to hot add and remove memory from a running system. It is a nice feature and has come in handy for me on many occasions. Memory Hot Remove Example Lets say I have a virtual machine named foo which I&#8217;ve given 1024 megs of ram. One [...]]]></description>
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		<title>Live Migration and Synchronous Replicated Storage With Xen, DRBD and LVM</title>
		<link>http://backdrift.org/live-migration-and-synchronous-replicated-storage-with-xen-drbd-and-lvm</link>
		<comments>http://backdrift.org/live-migration-and-synchronous-replicated-storage-with-xen-drbd-and-lvm#comments</comments>
		<pubDate>Sun, 11 Jan 2009 18:09:29 +0000</pubDate>
		<dc:creator>Keith</dc:creator>
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		<category><![CDATA[drbd]]></category>
		<category><![CDATA[high availability]]></category>
		<category><![CDATA[infrastructure]]></category>
		<category><![CDATA[linux]]></category>
		<category><![CDATA[lvm]]></category>
		<category><![CDATA[redhat]]></category>
		<category><![CDATA[scalability]]></category>
		<category><![CDATA[storage]]></category>
		<category><![CDATA[systems administration]]></category>
		<category><![CDATA[unix]]></category>
		<category><![CDATA[Virtualization]]></category>
		<category><![CDATA[Xen]]></category>

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		<description><![CDATA[Xen LVM &#38; DRBD Overview The Xen Hypervisor provides a great deal of flexibility and high availability options when it comes to deploying virtual machines. One of the most attractive features it offers is called live migration. Live migration is the ability to take a running virtual machine (&#8220;domU&#8221;) and move it from one Xen [...]]]></description>
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