I have a datastore on an ESXi 5.1 host that I'd like to make accessible via NFS or FTP so that other hosts can see its contents
-> What other type of hosts? (ESXi, Linux, Unix, Windows etc..)
Other ESXi and and Windows machines.
-> What do you plan on doing with the Files once presented to the other hosts?
The datastore is just going to hold a library of ISO images that VMs on the same hosts and other hosts can reference as needed. Is my only option to have a ReadyNAS VM or something similar with direct access to the datastore so I can make an NFS share? It looks like I'd need a VSA appliance on every host otherwise?