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	<title>VMengine Blog &#187; google app engine</title>
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		<title>Cloud Computing : Scalability- True or False</title>
		<link>http://blog.vmengine.net/2009/05/18/cloud-computing-scalability-true-or-false/</link>
		<comments>http://blog.vmengine.net/2009/05/18/cloud-computing-scalability-true-or-false/#comments</comments>
		<pubDate>Mon, 18 May 2009 10:43:13 +0000</pubDate>
		<dc:creator>Fabio Cecaro</dc:creator>
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		<guid isPermaLink="false">http://blog.vmengine.net/?p=209</guid>
		<description><![CDATA[Nonostante la definizione in bozza del NIST, National Institute of Standards and Technology si continua a parlare di Cloud Computing come se fosse la tecnologia capace di fare tutto. Una di queste feature tanto nominata è la presunta scalabilità innata della tecnologia, pertanto partiamo innanzitutto da una corretta comprensione della scalabilità: Possiamo definirla come la capacità di un sistema di crescere in base al numero di richieste esterne al sistema stesso. Generalmente si intende la crescita in orizzontale, cioè su &#8220;commodity hardware&#8221;, che si riassume aggiungendo server economici per aumentare la potenza del sistema e naturalmente bilanciarne il carico. Effettivamente sembra calzare con il Cloud Computing che per definizione sarebbe una infrastruttura scalabile semplicemente, basata su...]]></description>
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