did you check the datastore tab (CtrlShftD)
The (1) normally is used because you want to create a datastore wich allready exists or ESX thinks this datastore still exists. you can try rescan the storage on both esx hosts (storage adapters section) and than have a look in the datastore section.
Okay that was easy enough. I never look at the Datastores section on VC. I was just looking at the host storage tab. Thanks a lot. I see my problem is I have hosts on this VC pointing to the same NFS mount using different IPs and that is why it is not using the same name for new NFS mount that same datastore. It is assuming these are differnt datastores even though the datastores are the same. I am assuming this will also cause me problems trying to VMotion between hosts if I tried to use it like this. I guess I will be requesting some new IPs for these hosts. Thanks for the quick response.
Thanks. So obvious, but sometimes you just get stuck on the basic stuff