[Samba] Intermittent file server problems

[Doug VanLeuven]

Jim wrote:

> Hi - We have been running into some intermittent problems with Samba in
> a configuration where it is employed as a file server for several Windows
> Server 2003 boxes. This problem generally occurs only under heavy load
> when running some I/O intensive programs on the Windows side. Another
> common element seems to involve working with files that remain open for
> a long duration and are heavily updated.
>
> On the Windows side the failure is typically preceded by a series of 
> event
> log messages similar to the following.
>
>   MRxSmb Warning Event ID: 50
>
>   {Delayed Write Failed} Windows was unable to save all the data for the
>   file \Device\LanmanRedirector. The data has been lost. This error 
> may be
>   caused by a failure of your computer hardware or network connection.
>   Please try to save this file elsewhere.
>
>   (This message is the one that includes the c000020c status code)
>
>   Application Popup Information Event ID: 26
>
>   Application popup: Windows - Delayed Write Failed: Windows was 
> unable to
>   save all the data for the file \\Server\mount\path\to\file.dat. The 
> data
>   has been lost. This error may be caused by a failure of your computer
>   hardware or network connection. Please try to save this file elsewhere.

Hi Jim,
There's a pretty good writeup about this by Tangent Systems.
    http://www.tangent-systems.com/support/delayedwrite.html
They document smb signing issues that affect windows to windows machines.

Regards, Doug