By Jon Greaves on Mar 22, 2009.
Let’s start with what you plan to use the cloud for. Let’s assume you have some degree of predictability in the workloads of your IT infrastructure. Very few enterprise or federal customers can “switch the lights off” at night time on their infrastructure; email doesn’t stop and databases are still used to build reports. Also very few enterprise apps like to scale (both in terms of technology and license model) in fractions of a machine. So this means enterprises have a natural “commit” level that matches their workloads.