Dell EMC Solutions for Microsoft Azure Stack HCI encompasses various configurations of AX-R740xd, AX-R640, and AX-6515 to power the primary compute cluster deployed as Hyper-Converged Infrastructure (HCI). This uses a flexible solution architecture rather than a fixed component design. This flexibility in component choice brings in different choices for integrating the server nodes as a solution and in the host network configuration. Dell EMC Solutions for Azure Stack HCI can be deployed in two different usage models. The scalable model supports from 2 to 16 nodes in a cluster and uses top-of-rack switches for management and storage traffic networking. The switchless storage usage model uses full-mesh connections between the cluster nodes for storage traffic and supports from 2 to 4 nodes in a cluster. Host management and storage networking within each usage model can be implemented in different ways. The scalable model support fully-converged, non-converged physical, and non-converged SET storage options while the switchless storage networking model supports single-link full mesh and dual-link full mesh topologies. A detailed description of these different topologies across usage models is available in the subsequent sections.
Figure 1 depicts the network integration options available based on the Dell EMC Solutions for Azure Stack HCI.
Figure 1. Network Integration Options
This article describes the complete list of integration options for each usage model (Scalable and Switchless Storage), host OS configuration options, and provides PowerShell commands to complete the host OS network configuration. This includes adapter specific configuration instructions related to RoCEv2 or iWarp configuration in the host OS. Instructions to configure Top-of-Rack networking switches are specified in the sample network switch configurations page.
The following sections provide an overview of the topology and deployment instructions for each integration option.