Nates is right.
One full node / with farmer, multi harvest machines is good.
Initially , I was in a rush ( Chia coin fever ) , I did not setup the network correctly.
I spend the first week learning about plotting and building plotting machines.
Second week, I started deploying remote harvester machine, then I figured out that I need a
private network between harvester and plotters.
During the time that it took to transfer TB of plots to harvester using the same farming network.
the farming network is saturate, no farming was done.
Now, I have 5 harvester machine connecting to 6 plotter via a private network.
due to limit of pcie slots , I could not run 10gbe network, not all machines has onboard 10gbe .
Second best is to use USB 2.5gb Ethernet to transfer plots to harvester.
I picked up a 8 ports 2.5gbe switch for $150, few usb 2.5gbe , 2.5gbe pcie card.
Another benefit, it let me move the harvester / plot storage without taking down the entire setup.
