It’s worth checking the Nimble Storage Documentation site as there are lots of environment and product specific best practises guides available.
A Windows based computer to run the initialisation and setup.At least 3 static IP addresses for FC setups or 5 for iSCSI.For iSCSI at least 2 additional cat 6 cables and GbE or 10GbE (recommended), for FC at least 2 OM3 or better Fibre channel cables and ports.