An upgrade from VMware ESX to vSphere doesn't have to mean throwing your old hosts away. Here's how to remake them into 'warm sites' EMC VMware’s ESX 3.0 was released a bit more than three years ago.

EMC VMware's ESX 3.0 was released a bit more than three years ago. While ESX 2.5 was a solid virtualization platform, ESX 3.0 seemed to push server virtualization into the realm where a lot of small ...