The Ethernet network not only provides connectivity to the VMs and services, it also provides the backplane for the nodes in a hyperconverged infrastructure to aggregate and share system resources. Therefore, network bandwidth is critical to system scale and performance. Today, most data centers are built with 10 Gb Ethernet connectivity, but 1 GbE still exists in some environments. To support these environments, Dell EMC also offers 1 GbE VxRail models for smaller, less-demanding workloads. The following are considerations for using the 1GbE connectivity option:
1 GbE is only supported for hybrid storage configurations, as it does not provide the bandwidth necessary for the ultra-high performance required by an all-flash system.
The maximum supported node count is eight nodes per cluster, because vSAN traffic increases with the number of nodes.
Only nodes with single-socket CPUs are supported.
A minimum of four ports are required per node. This increases the total number of switch ports required.