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Unable to mount volume using CIFS on Linux client and fails with Error Host is Down

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Category:
ontap-9
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nas
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Applies to

  • ONTAP 9
  • CIFS
  • Linux/Unix

Issue

  • Host is Down error observed while mounting SMB share on Linux client.

root@xxxx# mount -t cifs -o credentials=/etc/windows-credentials,vers=3.0 //10.201.xx.xx/xxxxxxx$ /test3
mount error(112): Host is  down
Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)

  • kernal.log shows the following logs:

CIFS: Invalid version specified
CIFS: Invalid version specified
CIFS: Invalid version specified
CIFS VFS: ioctl error in smb2_get_dfs_refer rc=-2
CIFS VFS: cifs_mount failed w/return code = -112
CIFS VFS: cifs_mount failed w/return code = -112
CIFS: Invalid version specified
CIFS VFS: ioctl error in smb2_get_dfs_refer rc=-2
CIFS VFS: cifs_mount failed w/return code = -112

  • EMS logs show the following:

7/15/2020 16:54:16  cluster-01      ERROR         Nblade.noSmbVerNegotiated: For Vserver "test", Data ONTAP(R) could not negotiate with the client "10.200.10.10" because it does not support any of the SMB protocol versions that the client sent in the list "".

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