Storage Spaces Direct storage planning aid

Q. Is there a tool to help plan out storage utilization and the amount of data that will be available with Storage Spaces Direct?

A. Microsoft has a website available at http://www.cosmosdarwin.com/spacesdirect/ which enables the number, type and capacity of disks available in each node of a cluster to be specified, the number of nodes and the level of resiliency required to be entered. The output shows the amount of storage that will be available for usage and the amount used for resiliency and reserved for disk replacement as shown.