One of the most common questions I get when a customer decided to buy Azure Stack is, how you can calculate the sizing of your Azure Stack. He also wants to know how larger the server should be for his workloads and which Azure Stack Hardware SKU he should go for. Microsoft just released the Azure Stack Capacity Calculator (Version 1801.01). This tool will assists customers in the pre-purchase capacity planning of the Azure Stack hardware configuration. This helps you decided on how large your Azure Stack solution should be configured. This sizes server configuration and amount of servers you need to run your workloads on a Azure Stack integrated system. This also helps you in your Azure Stack Pricing Calculation.
The Azure Stack capacity planner is intended to assist in pre-purchase planning to determine appropriate capacity and configuration of Azure Stack hardware solutions.
The Azure Stack capacity planner helps you make informed decisions with respect to planning capacity in two ways: either the by selecting a hardware offering and attempting to fit a combination of resources or by defining the workload that Azure Stack is intended to run to view the available hardware SKUs that can support it. Finally, the spreadsheet is intended as a guide to help in making decisions related to Azure Stack planning and configuration.
The spreadsheet is not intended to serve as a substitute for your own investigation and analysis. Microsoft makes no representations or warranties, express or implied, with respect to the information provided within the spreadsheet.
Azure Stack Capacity Planner
You can download the Azure Stack Capacity Planner from the TechNet Gallery. It is a simple to use Microsoft Excel file, where you enter your workload data. I will out put some information about the configuration you need and even allows you to compare different hardware SKUs. It will also indicate which one will be the best solution for you.
Download Azure Stack Capacity Calculator: TechNet Gallery Azure Stack Capacity Planner (Version 1801.01)