I have two ESX servers running 3.0.1 and want to upgrade them to 3.0.2 Update 1. Do I need to unplug the FC cables from the servers when I upgrade them? Does the upgrade make any changes to the VMFS structure that I need to be concerned about? How do it work when I have two servers connected to the same SAN, sharing LUNs? Will I be able to upgrade them one at a time without causing a problem?
Thanks,