Does Ubuntu 12.04.1 come with everything I need for using virtual servers and are the tools efficient?

Posted by orokusaki on Server Fault See other posts from Server Fault or by orokusaki
Published on 2012-10-12T21:19:32Z Indexed on 2012/10/12 21:38 UTC
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ubuntu

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virtualization

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vmware-esxi

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xen

I noticed that Ubuntu 12.04.1 comes with Xen, OpenStack, KVM and other virtualization-related tools. I have used VMWare in the past. If I was to use Xen for visualization, would I see considerable performance lost, since Xen is run on the host OS? Is it even run on the host OS, or is it like VMWare where it's installed below any Linux OS on the machine (embedded, I guess is the word)? Do you have any recommendations on what sort of set up to use with these built-in tools? I have 2 physical servers, side-by-side. Each will need a VM used for Postgres and a VM used as an app server. One will be a failover for the other.

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