Unable to mount NFS export when root volume's export policy deny read access

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Views:: 11,539

Visibility:: Public

Votes:: 7

Category:: ontap-9

Specialty:: NAS

Last Updated:

Applies to

ONTAP 9
NFS
Linux
VMware
Windows

Issue

Permission denied/access denied errors seen while mounting the volume on client:

[root@client1 ~]# mount 10.1.2.3:/vol1 /mnt -v

mount.nfs: timeout set for Fri Mar 12 01:11:48 2021 mount.nfs: trying text-based options 'vers=4.1,addr=10.1.2.3,clientaddr=10.3.4.5' mount.nfs: mount(2): Operation not permitted mount.nfs: trying text-based options 'addr=10.1.2.3' mount.nfs: prog 100003, trying vers=3, prot=6 mount.nfs: trying 10.1.2.3 prog 100003 vers 3 prot TCP port 2049 mount.nfs: prog 100005, trying vers=3, prot=17 mount.nfs: trying 10.1.2.3 prog 100005 vers 3 prot UDP port 635 mount.nfs: mount(2): Permission denied mount.nfs: Operation not permitted

[root@client1 ~]# mount 10.1.2.3:/vol1 /mnt mount.nfs: access denied by server while mounting 10.1.2.3:/vol1

NFS Client for Windows shows below error:

System error 53 has occurred. The network path was not found

VMWare error log:

2025-07-19T22:41:27.047Z cpu24:2102285 opID=7d15c6b6)WARNING: NFS41: NFS41FSGetRootFH:4401: Failed to get the pseudo root for volume NACL_NFS41_SSD_HVTmp: Permission denied 2025-07-19T22:41:27.047Z cpu24:2102285 opID=7d15c6b6)WARNING: NFS41: NFS41FSCompleteMount:3942: NFS41FSGetRootFH failed: Permission denied 2025-07-19T22:41:27.047Z cpu24:2102285 opID=7d15c6b6)WARNING: NFS41: NFS41FSDoMount:4584: First attempt to mount the filesystem failed: Permission denied 2025-07-19T22:41:27.047Z cpu24:2102285 opID=7d15c6b6)WARNING: NFS41: NFS41_FSMount:4888: NFS41FSDoMount failed: Permission denied 2025-07-19T22:41:27.047Z cpu24:2102285 opID=7d15c6b6)WARNING: NFS41: NFS41_VSIMountSet:413: NFS41_FSMount failed: Permission denied 2025-07-19T23:04:51.047Z cpu3:2106842 opID=5eb79a50)WARNING: NFS41: NFS41FSGetRootFH:4401: Failed to get the pseudo root for volume NACL_NFS41_SSD_HVTEST: Permission denied 2025-07-19T23:04:51.047Z cpu3:2106842 opID=5eb79a50)WARNING: NFS41: NFS41FSCompleteMount:3942: NFS41FSGetRootFH failed: Permission denied 2025-07-19T23:04:51.047Z cpu3:2106842 opID=5eb79a50)WARNING: NFS41: NFS41FSDoMount:4584: First attempt to mount the filesystem failed: Permission denied 2025-07-19T23:04:51.047Z cpu3:2106842 opID=5eb79a50)WARNING: NFS41: NFS41_FSMount:4888: NFS41FSDoMount failed: Permission denied 2025-07-19T23:04:51.047Z cpu3:2106842 opID=5eb79a50)WARNING: NFS41: NFS41_VSIMountSet:413: NFS41_FSMount failed: Permission denied

Command check-access shows which export-policy rule is denying read access on SVM's root volume (svm1_root):

::> vserver export-policy check-access -vserver svm1 -volume vol1 -client-ip 10.3.4.5 -authentication-method sys -protocol nfs3 -access-type read-write

                                         Policy    Policy       Rule
Path                          Policy     Owner     Owner Type  Index Access
----------------------------- ---------- --------- ---------- ------ ----------
/                             default    svm1_root
                                                   volume          0 denied