[THIN] Re: Very slow data transfer XP FR3 on W2003
- From: "Rick Mack" <Rick.Mack@xxxxxxxxxxxxxx>
- To: <thin@xxxxxxxxxxxxx>
- Date: Sat, 4 Dec 2004 07:36:51 +1000
Hi Kevin,
When you see that sort of speed difference, it's almost always a
port/NIC settings mismatch.
Had an issue with a Dell File server recently where the behaviour was
exactly as you're seeing. The server had Broadcom gigabit NICs, was
originally plugged in to a 100 MB port and ran fine until we discovered
it wasn't running gigabit. When the data centre people moved the
connection to a gigabit port, things went bad.
The basic issue was that autonegotation was failing. So one end (the
server) was running full duplex (as configured), and the other (switch
port) was running half duplex. This caused a terrific number of
retransmissions in one direction only, so data transfers were okay in
one direction, but not the other.
Don't waste your time if the replacement NIC uses the same drivers. Just
make sure the switch port is hard coded to full duplex.
Regards,
Rick
Ulrich Mack
Volante Systems
18 Heussler Terrace, Milton 4064
Queensland, Australia
tel +61 7 32467704
rmack@xxxxxxxxxxxxxx
-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On
Behalf Of Kevin Hopley
Sent: Saturday, 4 December 2004 1:20 AM
To: thin@xxxxxxxxxxxxx
Subject: RE: [THIN] Re: Very slow data transfer XP FR3 on W2003
Gave it a go and got in touch with Microsoft about the hotfix mentioned
in the article aswell. They were very helpful and also suggested another
hotfix which replaces the mrxsmb.sys and rdbss.sys files for updated
versions.
The mrxsmb.sys/rdbss.sys update provided a minimal improvement.
I have checked DNS and disabled the anitvirus - again no imrpovement.
I have messed around with the speed/duplex on the NIC and found that
even hard setting to 100/half gives about the same performance. Setting
to 100/full clows it down even more. I do not have managed switches so I
reckon the next step is to swap out the NIC and use a different switch.
But the thing that still confuses me is that for my test data: data
server to citrix server - 15 seconds,
citrix server to data server - 5 mintues
Thanks for the answers
Kev
-----Original Message-----
From: Dogers [mailto:dogers@xxxxxxxxx]
Sent: Fri 03/12/2004 11:12
To: thin@xxxxxxxxxxxxx
Cc:
Subject: [THIN] Re: Ver slow data transfer XP FR3 on W2003
On Fri, 3 Dec 2004 10:53:56 -0000, Kevin Hopley
<khopley@xxxxxxxxxxx> wrote:
> This affects file/save routines and logging off where roaming
profiles are used - regardless of the logged on user and associated
rights.
Try this:
http://support.microsoft.com/default.aspx?scid=kb;en-us;328890
Change the value to 1, reboot and see if you still have it :)
Andrew
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