AutoCad R14 and Samba

[Michael St. Laurent]

We are experiencing the same behaviour with Autocad R14 at Hartwell
Corporation.  The Engineering Department reported it to me just yesterday.
We too are using samba version 1.9.18p8 on a SPARC architecture Solaris
2.5.1 system.

At 07:21 PM 6/16/98 +1000, Jem Atahan wrote:
>Hi all.
>
>We have here a Sun sparc 5 running Solaris 2.5, plus samba-1.9.18p8
>(although it exhibited the same behavior under 1.9.17p4).
>
>The network clients are NT4 SP3 machines, and the problem is AutoCAD R14.
>Files opened in acad will intermittantly open as read only.
>
>Has anyone out there experienced this, and have they found a workaround?
>
>Anyway, my findings are as follows...
>
>Firstly, the problem seems to be speed/latency related (ie. upping the debug
>level will produce the problem more reliably, so will server load). It also
>seems related to oplock support and will behave differently with different
>oplock settings.
>
>I have got the best results using:
>
>strict locking = yes  #this is for ACad R13/R14 locking compatability
>oplocks = no
>fake oplocks = yes
>
>Setting "oplocks = yes" here produces the same results, and smbstatus
>reported oplocks being set, but it seemed like a dangerous idea to me what
>with the fake oplocks and all...
>
>The above configuration produces an occasional read only file on a lightly
>loaded system (however fake oplocks breaks a number of other things...)
>
>I have produced some log files at the following locations. (Due to the debug
>level affecting the symptoms, most of the log files are at level 3.)
>
>ftp://ftp.condor.com.au//pub/outgoing/samba/fakeoplock.success
>ftp://ftp.condor.com.au//pub/outgoing/samba/fakeoplock.failure
>ftp://ftp.condor.com.au//pub/outgoing/samba/fakeoplock.failure.log250
>ftp://ftp.condor.com.au//pub/outgoing/samba/fakeoplock.smbconf
>
>The first three are respectively, a level 3 log of a successful file open, a
>level 3 log of a failed file open, a level 250 log of a failed file open and
>the smb.conf in use at the time. The share being used is [testing].
>
>I would welcome any input, and am in a position to do some serious
>testing...
>
>thanks for your time...
>
>
>

--------------------
Michael St. Laurent
Hartwell Corporation

"Whenever you find yourself on the side of the majority
it is time to pause and reflect."
               -- Mark Twain