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VMWare “Vmotion” Server Live Migration Explained

One of the best features in VMWare’s “VMware Infrastructure 3” product is the widely known “Vmotion Technology”. Vmotion technology has been around in earlier versions of VMWare’s ESX product. What exactly is Vmotion? With Vmotion an administrator can live migrate a virtual server (VM) from one physical host server to another physical host server. A Vmotion process takes somewhere between 30 seconds and 1.5 minutes on average. However, there is no interruption in availability of the virtual machine at that time. The end-user using the VM does not notice that the machine is moving to a different physical host. If you would do a persistent ping against the VM you might see a few pings with higher ping times, but that is pretty much it.

One of the things I’ve noticed is the interest in Vmotion, the virtualization tool that brings you the ability to move virtual machines from ESX server to ESX server, it’s very cool, the article above explains the process, do check it out.

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