I found out today that Nimble does not support direct connections for iSCSI networking between ESXi hosts and the array. We have a couple HP DL380G8 hosts and the CS220. It is currently setup and functional but won't allow a software upgrade due to network issues. I'm unable vmkping the discovery IP on the array from the hosts yet the existing LUN.
Has anybody ever made a direct connect (no Ethernet switches in the middle) work or are we stuck with having to add the switches? It is a remote office with no IT people so a long trip may be required.
Thanks for any insight