If designing a physical server is similar to designing a house, designing a virtualized infrastructure is almost like designing a small city. There are lots of interrelated components, and you have to make many critical design decisions to ensure that all of the residents’ needs are met properly.
If you don’t properly account for water, gas and electric needs, for example, your houses won’t have the resources they need for basic services and peak loads. Similarly, when designing a virtualized infrastructure for customers, solutions providers need to size the storage, network, CPU and memory resources correctly, or the virtual machines (VMs) will not have the resources they need to run applications.
Besides hardware resources, you have to make other decisions when designing a vSphere virtualized infrastructure, many of which will dictate your hardware requirements. The vSphere features you’ll need are often tied to the type of server hardware you use. If you do not make the correct hardware decisions when designing your customer’s virtual environment, you may find that you cannot use some of vSphere’s features. Therefore, it’s important to understand vSphere’s requirements and limitations early on in your design phase.
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