How is it certain to create a datastore in NFS/CIFS share?
What is the principle behind creating a datastore in that share....?
I think you need to restate your question more exactly if you expect a useful answer.
How is the datastore created in NFS/CIFS share is working?
You probably should read the File Access and Protocols Management Guide for your release on the NOW site. If you have specific questions after that, then ask them here.