Each of the variants in Dell EMC Solutions for Azure Stack HCI supports a specific type of network connectivity. The type of network connectivity determines the solution integration requirements.
Fully converged network connectivity
In the fully converged network configuration, both storage and management/virtual machine (VM) traffic use the same set of network adapters. The adapters are configured with Switch Embedded Teaming (SET). In this network configuration, when using RoCE, you must configure data center bridging (DCB).
The following table shows when to configure DCB based on the chosen network card and switch topology:
Network card on node
DCB (not required)
* For simplicity, all converged sample switch configurations have DCB configured for both Mellanox and QLogic. However, for QLogic (iWARP), except for high-performance configurations such as all-NVMe, DCB is not required.
Nonconverged network connectivity
In the nonconverged network configuration, storage traffic uses a dedicated set of network adapters either in a SET configuration or as physical adapters. A separate set of network adapters is used for management, VM, and other traffic classes. In this connectivity method, DCB configuration is optional because storage traffic has its own dedicated fabric.
The switchless storage networking deployment model also implements nonconverged network connectivity without the need for network switches for storage traffic.