Can't add an NFS share on my ESX host.

[dwatters]

When I try to map an NFS share to my ESX host, I get the following error message:

Call "HostDatastoreSystem.CreateNasDatastore" for object "ha-datastoresystem" on ESXi "<HOST_ADDRESS>" failed.

Operation failed, diagnostics report: Cannot open volume: /vmfs/volumes/558537c6-ae971e4d

I can ping it:

~ # vmkping -I vmk1 -s 1472  <NFS_ADDRESS>

PING 192.168.6.200 (192.168.6.200): 1472 data bytes

1480 bytes from <NFS_ADDRESS>: icmp_seq=0 ttl=128 time=0.665 ms

1480 bytes from <NFS_ADDRESS>: icmp_seq=1 ttl=128 time=0.362 ms

NFS Server is Win2008 R2 with NFS server process running.  The share is viewable from the Share and Storage Management snap-in.  The share is configured as read-only, but it's just a repository for .ISO files anyways, so I don't really want it to be writable either. 

Any help would be appreciated. 

[dospavlos]

On the netapps side, make sure you  qtree security type value is set to Unix rather than NTFS.  That fixed the issue for me.