In releases earlier than 4.7.410, the two vSAN data nodes must be directly connected using SFP+ or Cat6 cables. Starting with VxRail 4.7.410, the two vSAN data nodes can be connected through the switch.
The following physical layout is enforced:
- Either a 1GbE or a 10 GbE switch is supported. 1 GbE switch is only supported in a directly connected configuration.
- Ports 1 and 2 of the VxRail Appliances are connected to a switch and used for the management and witness traffic. Port speed auto-negotiate down to 1 Gb if they are connected to a 1 GbE switch.
- If direct-connect is desired, Ports 3 and 4 from Node 1 are directly connected to Ports 3 and 4 of Node 2 respectively and are used for vSAN and vMotion traffic.
- If switched config is desired, all four ports must be connected to the switch(es).
Figure 4. Direct-connect port configuration on VxRail appliances