Once the high-level design or reference architecture is approved, we can start creating the more detailed design elements. All designs are iterative in nature. Like the reference architecture, start with a baseline design and refine as you go. This allows flexibility and provides a frame of reference for all decisions. Just remember, if you change any baselines you must reevaluate your design to ensure everything is still in compliance.
Once you have a high-level design approved, you can create a spreadsheet detailing the compute, memory, and storage requirements. Do this by listing the necessary resources for each virtual machine that needs to be created to support the design. These numbers are simply starting points in the conversation and should be reviewed and validated for each individual environment. Ideally, the sizing will come from information gathered during the assessment phase of the project. Regardless of how you scale...