A client is attempting to mount a UNIX security style volume using NFSv4. The client receives the "permission denied" message, but mounting NFSv3 works fine. You have confirmed both NFSv4 and NFSv3 are allowed in the export policy.
Which statement describes this behavior?
A. Extended groups for AUTH_SYS are enabled.
B. NFSv4 takes file permissions into account when mounting.
C. There is no proper name-mapping rule for the user mounting.
D. The export policy applied to the volume has superuser set to none.
C
https://community.netapp.com/t5/Network-Storage-Protocols-Discussions/NFSv4-Access-Denied/td-p/77856