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damian_19221's avatar
damian_19221
Icon for Nimbostratus rankNimbostratus
Mar 11, 2014

Configuration SMB Monitors

Hi, We are looking to load balance CIFS servers using the F5 - the idea is we have two servers, a primary and a secondary. I'd like to only use the secondary when the primary fails (using priority gr...
application delivery
availability
deployment
LTM
monitor
smb
  • F50_147262's avatar
    F50_147262
    Mar 13, 2014

    It seems as though the issue was due to a missing directory. The message below which was seen in the logs was due to the local directory not being present.

    file.txt was not transferred: No such file or directory

    The monitoring uses /var/run/monitors as a default directory. This appears to be hardcoded. The get commands are successful and the files are being placed in /var/run as indicated by the preceding lines in the logs.

    smbclient //longweb03sandbo/share mypassword -I 10.200.8.28 -p 445 -c cd .; cd; get file.txt file.txt.18261 -U myuser 
dirstring: Current directory is \
Domain=[LONGWEB03SANDBO] OS=[Unix] Server=[Samba 3.0.33-3.39.el5_8]
getting file \file.txt of size 2 as file.txt.18261 (0.5 kb/s) (average 0.5 kb/s)
Recvd: 'Current directory is \

    Creating /var/run/monitors directory resolved the issue. We now get:

    smbclient //longweb03sandbox/share mypassword -I 10.200.8.28 -p 445 -c cd .; cd; get damian.txt damian.txt.24691 -U 101135 
dirstring: Current directory is \
Domain=[LONGWEB03SANDBO] OS=[Unix] Server=[Samba 3.0.33-3.39.el5_8]
getting file \damian.txt of size 6 as damian.txt.24691 (1.5 kb/s) (average 1.5 kb/s)
Recvd: 'Current directory is \
'
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damian_19221's avatar
damian_19221
Icon for Nimbostratus rankNimbostratus
Mar 12, 2014

There's not a whole lot of information in the Samba log file. It just says successful connection and successful close:

    [2014/03/12 12:42:52, 1] smbd/service.c:make_connection_snum(1085)
  f5_device (10.200.11.44) connect to service share initially as user myuser (uid=1161, gid=1161) (pid 21728)
[2014/03/12 12:42:52, 1] smbd/service.c:close_cnum(1282)
  f5_device (10.200.11.44) closed connection to service share

The path to the share is \longweb03sandbox\share and file.txt is just there. One thing I noticed when Samba starts is the Netbios name is truncated to "longweb03sandbo" but it doesn't seen to make a difference whether I name the server with or without the x in my monitor.