[Samba] Samba & AutoCad 2007

Jack Downes jax at nwmt.us
Tue Mar 3 01:10:19 GMT 2009

Hmm, my gut instinct here is to look at oplocks and how  they are setup 
on your server.  I had a similar issue with quickbooks a long time ago - 
this is one large file that can be worked on by several people 
simultaneously, and we had to fix it with oplocks.  I can't recall 
excactly what was done, but that might at least get you in the right 
direction.  In our case, I do know we had to seperate that QB file out 
from the rest of the files and create a "special needs" share that was 
different.  Come to think of it, I think we totally disable oplocks... 
but, you really ought to read about them to find out what's needed and 
what's not.


Patrik Dufresne wrote:
> Hi,
> I'm managing a Samba server for almost 4 year now and I've got some 
> glitch with AutoCad & Samba, but I've found many solution to solved 
> those problems. Last week, I receive many complains about some users 
> that experience problem using AutoCad. In fact, it's not AutoCad but 
> Advance Steel Metal 2009 (plugin for AutoCad). In this new version of 
> Advance, there is a new feature called Model Sharing. This feature 
> consist in a support of multiple user sharing the same file - 
> concurrent modifications can be done by multiple user. I'm not really 
> sure how it's implemented, I'm still in process to get access to some 
> implementation details.
> So far, our investigation point that Samba may be in cause. I think 
> it's related to some flag not supported by Samba or implemented 
> differently to the MsWindows.
> This problem is a big issue for us and I want to do everything 
> possible to fix this problem (what ever it's Samba related or AutoCad 
> related.)
> To proceed, I need some help from Samba team to debug the problem with 
> me.
> How can I have detailed logs showing the open flag ?
> Is a tcpdump can be usefull ?
> Is there any configuration to support shared mode ?
> I have a look at this documentation, does Samba support every flags  ?
> http://msdn.microsoft.com/en-us/library/aa365430(VS.85).aspx
> Thanks for any help you can give.
> Patrik Dufresne

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