When you should or should not virtualize an application
Applications can be categorized into three basic groups:
Green: In this group, applications can be virtualized right out of the box. They have great performance with no tuning required.
Yellow: In this group, applications have good performance but require some tuning and attention for optimal performance.
Red: In this group, applications exceed the capabilities of the virtual platform and should not be virtualized.
The vast majority of applications are green, which means that no performance tuning is required. Yellow applications are smaller but still a significant group. There are very few red applications (that is, applications that do not virtualize).
Getting ready
To step through this recipe, you will need one or more running ESXi Servers, more than one datastore attached to the ESXi, a couple of VMs on those datastores, a vCenter Server, and a working installation of vSphere Client. No other prerequisites are required.
