Extremely slow network performance when copying data from DC

Hi there-

I have a rather big problem with the internal Windows networking. Currently
when I transfer big fat file from my Windows 2000 Std. Server DC to Windows
2003 Std. Server, the network utilization stays just below 10% (100mbps). If
I copy the big fat file from Windows 2003 to the Windows 2000, then it
sticks around 70-75%.

But if I use FTP, from Windows 2000 to Windows 2003, then it usually ends up
95-99% utilization.

What could be the cause of this problem?

--
You can't trust water: Even a straight stick turns crooked in it.
(W. C. Fields)

Kim Noer wrote:
> Hi there-
>
> I have a rather big problem with the internal Windows networking.
> Currently when I transfer big fat file from my Windows 2000 Std.
> Server DC to Windows 2003 Std. Server, the network utilization stays
> just below 10% (100mbps). If I copy the big fat file from Windows
> 2003 to the Windows 2000, then it sticks around 70-75%.
>
> But if I use FTP, from Windows 2000 to Windows 2003, then it usually
> ends up 95-99% utilization.
>
> What could be the cause of this problem?

This problem occurs because server message block (SMB) write operations to a
Windows 2000-based domain controller may experience a delay of up to 200
milliseconds between file copies.
Raad here:
http://support.microsoft.com/default...321098&SD=MSKB
and here:
http://support.microsoft.com/kb/328890/
Regards
--
---
Giuseppe Nacci
Microsoft Certified System Engineer
Security Manager

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"Giuseppe Nacci" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)

> This problem occurs because server message block (SMB) write
> operations to a Windows 2000-based domain controller may experience a
> delay of up to 200 milliseconds between file copies.
> Raad here:
> http://support.microsoft.com/default...321098&SD=MSKB
> and here:
> http://support.microsoft.com/kb/328890/
> Regards

It's a long shot from what I read, since it mainly revovles around small files,
and the smallest value I can set, is 100 ms.

But I'll give it a shot, thanks.

--
I doubt, therefore I might be.

Kim Noer wrote:
> "Giuseppe Nacci" <(E-Mail Removed)> wrote in message
> news:(E-Mail Removed)
>
>> This problem occurs because server message block (SMB) write
>> operations to a Windows 2000-based domain controller may experience a
>> delay of up to 200 milliseconds between file copies.
>> Raad here:
>> http://support.microsoft.com/default...321098&SD=MSKB
>> and here:
>> http://support.microsoft.com/kb/328890/
>> Regards
>
> It's a long shot from what I read, since it mainly revovles around
> small files, and the smallest value I can set, is 100 ms.
>
> But I'll give it a shot, thanks.

Let me know if it's fine.....
Regards
--
---
Giuseppe Nacci
Microsoft Certified System Engineer
Security Manager

--------------------------------------------------------------------
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This message and its attachments are addressed solely to the persons
above and may contain confidential information. If you have received
the message in error, be informed that any use of the content hereof
is prohibited. Please return it immediately to the sender and delete
the message. Should you have any questions, please contact us by
replying to (E-Mail Removed)
Thank you
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"Giuseppe Nacci" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)

>> But I'll give it a shot, thanks.
> Let me know if it's fine.....

It didn't budge in any way, still only ~10% utilization. I've tried disabling
NetBIOS over TCP/IP on the interface, yet a network trace on the packets, still
shows active NBT protocol usage!

Secondly using the trace output I tried filtering on 0xA0 (NT transact) as SMB
command, yet nothing appears in the log!

What do to next I wonder?

--
I doubt, therefore I might be.