On 05/27/2011 02:33 PM, James B. Byrne wrote: > I have been working off and on with Xen and KVM on a couple of test > hosts for that past year or so and while now everything seems to > function as expected, more or less, I find myself asking the > question: Why? > > We run our own servers at our own sites for our own purposes. We do > not, with a few small exceptions, host alien domains. So, while > rapidly provisioning or dynamically expanding a client's vm might be > very attractive to a public hosting provider that is not our > business model at all. > > Why would a small company not in the public hosting business choose > to employ VM technology? What are the benefits over operating > several individual small form factor servers or blades instead? I > am curious because what I can find on the net respecting VM use > cases, outside of for public providers or application testing, seems > to me mostly puff and smoke. > > This might be considered OT but since CentOS is what we use it seems > to me best that I ask here to start. Live migration between physical hosts. Also, ease of recovery in the event of a failure. Can move the VM to entirely new hardware when the old hardware is no longer powerful enough... etc. -- Digimer E-Mail: digimer at alteeve.com AN!Whitepapers: http://alteeve.com Node Assassin: http://nodeassassin.org "I feel confined, only free to expand myself within boundaries."