I would like to use following 2-node witness design. Remote sites mgmt & witness traffic is sent on managment network. But witness appliance is provisioned with two port groups. Can i use the management network on witness appliance (WP) to send witness traffic and only use one vmnic ?
I was unable to delete the witness vmkernel port group on WA.
https://cormachogan.com/wp-content/uploads/2017/10/L3-witnessmgmt-single-vmknic.png
In the case of 2 Node vSAN, If it is desired to have vSAN traffic on the same subnet as vmk0, (or simply use a single interface for simplicity), it is recommended to disable vSAN services on vmk1 (WitnessPg) and enable vSAN services on vmk0 (Management). This is a perfectly valid and supported configuration.
Dont delete the WitnessPG, simply uncheck the vSAN Service from it and enable on the MGMT PG.