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Old 09-07-2008, 04:48 PM   #1
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Is it good to install web caching server under virtual-machine ???


I need anybody opinion about this issue, if it is good too install web caching server under virtualization or to be stand alone sever?
Just for info, I'm planing to install 3 web-caching servers but em confused what shell i do ? Do i go with stand alone servers or virtual severs. I know that the main advantages of virtualization is the cost but i'm a afraid that under vitrualization is not going to work because a large amount of users?

So I want two know does any body had any issue with his web-caching-sever running under virtual machine ?

Best regards
Old 09-08-2008, 09:38 AM   #2
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Think of virtualization as a "translation layer". Any translation comes with a penalty. I haven't heard of virtualization outperforming physical hardware.
Old 09-08-2008, 05:20 PM   #3
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Thank you for your opinion.
Old 09-08-2008, 05:42 PM   #4
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In defense of virtualization and to give you some insight when to use virtualization:

Virtualization shines in computers (generally servers) that are under-utilized. Desktop users will say a computer that uses less than %10 cpu is good since this means their GUI applications and such will respond fast. However, businesses take a different view: Treat the computer as a worker that can output 30 widgets per hour and you have to pay for the 30 widgets per hour regardless of what you get out of it. You buy 4 of these workers for a combined theoretical output of 120 widgets per hour. However, worker1 and worker2 only output about 4 widgets per hour each while worker3 and worker4 output 10 widgets per hour each. So you're paying for 120 widgets but only getting 28 widgets. That's when you call Mr. Virtualization. He comes in and gets rid of worker2, worker3, and worker4 and teaches worker1 how to do 28 widgets per hour. Mr. Virtualization charges the equivalent of 2 widgets per hour for this service. Now you have 30 widgets per hour from one worker of which 2 are used to pay Mr. Virtualization.

So businesses love it when there servers are utilized over %50, this means they aren't wasting money


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