samba - Dec 2000 - Network Busy (Samba/Fbsd 4)

I've encountered a problem at a location where I am using a FreeBSD/Samba
setup as a Fileserver for a small LAN ( ~5 workstations ).  The hardware
spec's
of the server should be more than adiquate for a small LAN and the network is
running on all 100 base.

	The problem appears to be initiated by the running of a certain program on
several workstaions at once ( Windows 98 workstations ).  The way the program
works is that it opens serveral ( ~30 ) files on the fileserver at once and uses
them
as well as storing decent sized database files on the server..  When this
program
is used on 3 or 4 workstations at once.. eventually all network operations with
the
server stop working.

	At first all of the workstations can run the program fine and access all
material
in the manner expected.  After a varying amount of time though eventually one of
the workstations will get disconnected from the Samba Fileserver ( the windows
drive mapping will disconnect ).  At this time the other workstaions on the
network
may or may not still have access to the server, but as soon at they try to
relogin
to the server, they are denied ( relogin meaning either rebooting their
workstaion, or
simple loging off windows and relogining in. ). 

	The message that is given when they try to relogin is "Network Busy".
At this
point the only remedy that has been found is to reboot the server and it will
begin
to operate normally for a while.  

I am wondering if anyone is familiar with a possible cause of this problem.  I
have
had a lot of trouble trying to diagnose the cause.. The possibilities that I
have come
up with so far are increasing the default max users and NMBCLUSTERS in the
freebsd kernel, a new nic ( already tried this once and didn't fix the
problem ), the
limits on open files.. which should not be it since that are unlimited right
now, or
a samba configuration problem.  I am at a loss as to what the problem is, so if
anyone could offer some insight or advice I am eager to hear from you.

I do not subscribe to the list, so Please CC me if you think of anything.

Kindest Regards,
		-Aric

Hi User Kuzak,

I am not an expert at all. But I had a some what simular problem. Try using
"oplocks = no". You can also increase your log level to try and find
the
problem in the logs. If you do so, make sure to set "max log size" to
prevent your harddisk from filling up. Monitor your disk usage frequently.

With kind regards,
Paul.

PS.: I am not an expert!!!!!

"Computer games don't affect kids, I mean if pacman affected us as
kids,
we'd all be running around in darkened rooms, munching pills and listening
to repetitive music."



-----Original Message-----
From: samba-admin@lists.samba.org [mailto:samba-admin@lists.samba.org]On
Behalf Of User Kuzak
Sent: maandag 18 december 2000 18:18
To: samba@us5.samba.org
Subject: Network Busy (Samba/Fbsd 4)



	I've encountered a problem at a location where I am using a FreeBSD/Samba
setup as a Fileserver for a small LAN ( ~5 workstations ).  The hardware
spec's
of the server should be more than adiquate for a small LAN and the network
is
running on all 100 base.

	The problem appears to be initiated by the running of a certain program on
several workstaions at once ( Windows 98 workstations ).  The way the
program
works is that it opens serveral ( ~30 ) files on the fileserver at once and
uses them
as well as storing decent sized database files on the server..  When this
program
is used on 3 or 4 workstations at once.. eventually all network operations
with the
server stop working.

	At first all of the workstations can run the program fine and access all
material
in the manner expected.  After a varying amount of time though eventually
one of
the workstations will get disconnected from the Samba Fileserver ( the
windows
drive mapping will disconnect ).  At this time the other workstaions on the
network
may or may not still have access to the server, but as soon at they try to
relogin
to the server, they are denied ( relogin meaning either rebooting their
workstaion, or
simple loging off windows and relogining in. ).

	The message that is given when they try to relogin is "Network Busy".
At
this
point the only remedy that has been found is to reboot the server and it
will begin
to operate normally for a while.

I am wondering if anyone is familiar with a possible cause of this problem.
I have
had a lot of trouble trying to diagnose the cause.. The possibilities that I
have come
up with so far are increasing the default max users and NMBCLUSTERS in the
freebsd kernel, a new nic ( already tried this once and didn't fix the
problem ), the
limits on open files.. which should not be it since that are unlimited right
now, or
a samba configuration problem.  I am at a loss as to what the problem is, so
if
anyone could offer some insight or advice I am eager to hear from you.

I do not subscribe to the list, so Please CC me if you think of anything.

Kindest Regards,
		-Aric