samba - Nov 2016 - Using smbclient to transfer files from a Linux system to a CIFS share

Hello,

I have a script which utilizes smbclient to transfer files across to a CIFS
shares from my Red Hat Linux 7.x servers on a daily basis.

Mounting of CIFS shares work fine to transfer but this is for some reason
not to be implemented.

I have the following version of samba-client

Loaded plugins: langpacks, product-id, rhnplugin, search-disabled-repos,
subscription-manager

This system is receiving updates from RHN Classic or Red Hat Satellite.

Installed Packages

Name        : samba-client

Arch        : x86_64

Version     : 4.4.4

Release     : 9.el7

Size        : 1.7 M

Repo        : installed
>From repo   : ramesh-clone-v7
Summary     : Samba client programs

URL         : http://www.samba.org/

License     : GPLv3+ and LGPLv3+

Description : The samba-client package provides some SMB/CIFS clients to
complement ……

Unfortunately this was working fine to a 7Mode NetApp CIFS share and still
works but does not work with any of the NetApp CDOT CIFS share .

To test it manually it connect fine to the CIFS share

However if I transfer files it transfers successfully any files below 64
kbytes but comes up with "cli_push returned
NT_STATUS_INVALID_PARAMETER"
when the files are bigger than this.

When this error occurs it creates an empty/Null file with the same name at
the CIFS share.

Anyone come across this problem and if so what is the solution.

You don't need a complete samba install just the smbclient install should
be enough to test this.

You can connect to the CIFS share from the Linux box using the following
command

#smbclient //CIFS_SERVER_NAME/CIFS_SHARE_NAME -U AD_Domain\\Username

This will prompt for password

smb: \>

smb: \> put SMALL

putting file SMALL as \SMALL (10128.9 kb/s) (average 10129.1 kb/s)

smb: \> put BIG

cli_push returned NT_STATUS_INVALID_PARAMETER

putting file BIG as \BIG (86067.4 kb/s) (average 64973.9 kb/s)

smb: \>



File sizes

52K     SMALL

1.1M    BIG



SMALL file is transferred successfully to the destination CIFS share

BIG file just creates a null or empty file with the name BIG at the
destination CIFS share location



If you connect to a 7Mode NetApp FAS controller providing the CIFS share
this works fine for any file sizes as shown below.



smb: \> put SMALL

putting file SMALL as \SMALL (405.2 kb/s) (average 405.2 kb/s)

smb: \> put BIG

putting file BIG as \BIG (6216.0 kb/s) (average 3834.5 kb/s)

smb: \>





Any help would be appreciated.



Cheers,

Ramesh

On Fri, Nov 11, 2016 at 08:36:00AM +0800, H.S.Ramesh via samba
wrote:
> Unfortunately this was working fine to a 7Mode NetApp CIFS share and still
> works but does not work with any of the NetApp CDOT CIFS share .
The sad fact is that NetApp does not support smbclient. So NetApp
tends to implement exactly what Windows client request, not what
Windows server could do, which is a very limited subset of SMB.
You might want to send a network trace of the failing command, see
https://wiki.samba.org/index.php/Capture_Packets for some info on how
to do it. We *might* be able to help.

Volker