Today I created some new NFS volumes at a NetApp FAS2040, after I configured the datastores in vSphere I couldn’t write files and folders, warning message:
Call "FileManager.MakeDirectory" for object "FileManager" on vCenter Server "server.domain.local" failed.
I forgot (stupid me) to configure the correct access rights, in the NetApp OnCommand System Manager:
Storage > Exports > select Export Path > add the correct rights + IP addresses for the configured VMware VMkernels:
I added the IP-addresses from the VMkernel ports with Root Access and I was able to create new files to the datastores.