We have several applications that run on ESX 3.5. The guest OS is Windows 2003 SP2. At the moment, all our ESX hosts are SAN attached.
We've just bought a NAS too and will be building ESX 3.5 servers that are NAS attached too. We'll be building more application servers on the NAS attached infra too.
From a guest point of view, is there any difference between NAS and SAN hosted servers? Is there a difference in I/O etc?