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Samba client unable to mount CIFS to NTFS share: Input/output error

Last Updated:

Applies to

  • ONTAP 9
  • SAMBA client
  • CIFS


  • Samba client is unable to mount an NTFS CIFS share and gets an Input/output error 
sudo mount -t cifs -vvv -o credentials=/etc/tempcreds,vers=3 //<SVM>/<volume>/<directy /tmp/FileTest/
mount.cifs kernel mount options: ip=,unc=\\UNC_path\<volume>,vers=3,user=<Domain_User>,domain=<domain>,prefixpath=/<directory>,pass=********
mount error(5): Input/output error
  • EMS/SECD logs show secd.cifsAuth.problem with NTLM authentication error 0xc000005e
FAILURE: Pass-through authentication failed. (NT Status: NT_STATUS_NO_LOGON_SERVERS(0xc000005e))

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