https://www.scalecomputing.com/documents/data-sheets/data_sheets_hc3_common_configs.pdf
HC3 from Scale Computing is an advanced and highly flexible IT infrastructure solution designed for simplicity, scalability, and high availability. All businesses need disaster recovery (DR) and some businesses have more than one production site to consider. HC3 can be deployed in a number of configurations for production and DR but these are the more common configurations.
With HC3, nodes can be mixed and matched with different models and sizes of nodes. It is easy to create clusters or configure single nodes to meet your capacity needs. You can also add nodes as needed to scale out your clusters, adding whatever resources you need. Flexibility and simplicity come at no extra cost.