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NFS mount of NTFS volume using root user not working due to name mapping failure

Last Updated:

Applies to

  • ONTAP 9
  • NTFS security style volume
  • NFSv3 and NFSv4.x


  • NFS mount of an NTFS volume hangs, times out, or getting error "permission denied" using root user:

mount.nfs: timeout set for Mon May  6 13:21:35 2024
mount.nfs: trying text-based options 'proto=tcp,soft,timeo=300,retrans=2,actimeo=1,vers=4,addr=10.x.x.12,clientaddr=10.x.x.11'
mount.nfs: mount(2): Permission denied
mount.nfs: access denied by server while mounting 10.x.x.12:/dir1/dir2

  • Export policy rules grant the client read and write access to the volume:
cluster1::> vserver export-policy check-access -vserver vs1 -client-ip -volume vol4 -authentication-method sys -protocol nfs3 -access-type read-write
                                         Policy    Policy       Rule
Path                          Policy     Owner     Owner Type  Index Access
----------------------------- ---------- --------- ---------- ------ ----------
/                             default    vs1_root  volume          1 read
/dir1                         default    vs1_root  volume          1 read
/dir1/dir2                    default    vs1_root  volume          1 read
/dir1/dir2/flex1              data       vol4      volume         10 read-write
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