Summary : During my preparation for the VCAP DCA exam and upon a rescan activity on the host it error out “vim.fault.NoHost”. I had not seen this error before in my lab nor in production.
Solution: I googled and found few useful links, they have occurred interestingly in the older version of ESX and also during an Host upgrade activity. A simple reboot did not fix the problem for me, so the solution is to get the host in to maintenance mode, disconnect and re-connect the host to the cluster, remember this is my lab host so I can play around it with it. This fixed the issue for me, if you still face the same issue. Remove the host from the cluster and add it back to the cluster, remember that by removing the host from cluster you would lose the inventory stored for the ESXi host.