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NFS Clients are unable to see specific files in a Flexgroup volume on ONTAP

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Category:
ontap-9
Specialty:
nfs
Last Updated:

Applies to

  • ONTAP 9
  • NFSv3
  • NFSv4
  • Flexgroup Volumes

Issue

  • NFS Clients which use OS flavor other than Solaris are unable to see files in the directories .
  • Solaris shows the file inode as 0
  • Empty directory that could not be deleted as it contained an invisible file (the client does not display it, even with "ls -la")

Example:

1) CentOS Linux release 7.6.1810 (Core) doesn't show the file link_file.sv
user1@centos:~ % ls /tmp/vol9/aa/bb/cc/dd/ee/fff/gg/folder
user1@centos:~ % df /tmp/vol9/aa/bb/cc/dd/ee/fff/gg/folder
Filesystem                             1K-blocks        Used   Available Use% Mounted on
fs2:/vol9/aaa 41943040064 22924518144 19018521920  55% /tmp/vol9
user1@centos:~ % uname -a
Linux us01ites08 3.10.0-862.3.3.el7.x86_64 #1 SMP Fri Jun 15 04:15:27 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
user1@centos:~ % cat /etc/redhat-release
CentOS Linux release 7.6.1810 (Core)

2) Red Hat Enterprise Linux Workstation release 6.7 (Santiago) doesn't show the file link_file.sv
user1@rhel:~ %  ls /vol9/aa/bb/cc/dd/ee/fff/gg/folder
user1@rhel:~ % ls -la /vol9/aa/bb/cc/dd/ee/fff/gg/folder
total 8
drwxr-xr-x. 2 sam nas 4096 Jul  9 00:19 .
drwxr-xr-x. 3 sam nas 4096 Jul  9 00:19 ..
user1@rhel:~ % uname -a
Linux us01nasadmin3 2.6.32-696.20.1.el6.x86_64 #1 SMP Fri Jan 12 15:07:59 EST 2018 x86_64 x86_64 x86_64 GNU/Linux
user1@rhel:~ % cat /etc/redhat-release
Red Hat Enterprise Linux Workstation release 6.7 (Santiago)

3) From Solaris it shows fileid as 0 for file link_file.sv and it is visible
bash-2.03# ls -li /vol9/aa/bb/cc/dd/ee/fff/gg/folder
total 8
0 lrwxrwxrwx   1 sam   nas     101 Jul  8 23:18 link_file.sv -> /tmp/vol5/xxx/yyy/zzz/sss/rrr/ddd/folder/link_file.sv

  • file-directory show command fails:

::*> vserver security file-directory show -vserver vs1 -path  /vol9/aa/bb/cc/dd/ee/fff/gg/folder/link_file.sv
Error: show failed: The specified path "/vol9/aa/bb/cc/dd/ee/fff/gg/folder/link_file.sv" cannot be used. 
Reason: No such file or directory.

  • Node Shell shows correct inode for the file:

::*> node run -node node1 -command ls -li  /vol/vol9/aa/bb/cc/dd/ee/fff/gg/folder
d-rwxr-xr-x       1858   10690121      2             4096       Wed Aug  5 04:34:54 PDT 2020     .
d-rwxr-xr-x       1840         96      8             4096       Wed Aug  5 23:30:04 PDT 2020     ..
 -rwxrwxrwx       1858    9042433      1              101       Wed Jul  8 23:18:02 PDT 2020     link_file.sv

 

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