I have recently returned from the HP Technical Conference and, although attendance was down a bit this year (likely due to the economy), there were still plenty of enthusiastic AMD customers and partners in attendance. The buzz around the availability of the recently released Six-Core AMD Opteron TM “Istanbul” processor and HP Proliant G6 servers was tremendous. HP has announced seven HP ProLiant platforms based on “Istanbul” processors as well as the availability of upgrade kits for existing G5/G5p platforms. I’m also happy to report that I had a packed room during my virtualization session on Tuesday. In our booth on the exhibition floor we demonstrated the ability to use VMware’s VMotion to seamlessly migrate a running virtual machine between an HP Proliant G2 server running Dual-Core AMD Opteron “Rev F” processors (released in 2006), G5 server running Quad-Core AMD Opteron “Shanghai” processors, (released in 2007) and the newest G6 server with Six-Core AMD Opteron processors. We’ve just released a video on YouTube featuring a similar demo — except that it also includes our upcoming processor codenamed “Magny-Cours” . I’m constantly getting questions on the topic of live migration and VMotion in particular. Customers want to be assured that they can use VMotion to migrate virtual machines between older and newer versions of their AMD processer-based platforms. Apparently we and our technology partners could do a better job of getting the word out. So let’s be clear — the answer is a resounding YES! Here are the facts. With the launch of our first quad-core processors, AMD formalized a functionality that had existed in our processors for a while under the feature name of Extended Migration. This capability enabled virtualization software vendors like VMware to support the live migration of a virtual machine between different versions of AMD processors starting with Rev E, which was released in 2004. Subsequently, with ESX 3.5 u2, VMware released a feature as part of VMotion called Enhanced VMotion Compatibility (EVC) that uses AMD Extended Migration to support VMotion between AMD Opteron processor generations. In order to utilize the feature, each server must be configured for EVC. For information on configuring EVC, see the “Migrating Virtual Machines” chapter in the Basic System Administration Guide for your ESX release
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Live Migration: Here to Stay