|
Question : Slow access from server to desktop, fast access from desktop to server
|
|
I have been stumped by an issue at a client location. We installed a Dell PowerEdge 1900 server (Xeon 5130, 4GB ram), a new Dell Powerconnect 2724 gigabit ethernet switch, and 16 new Dell Optiplex 745 desktops for them last August.
The issue that we are experiencing is very slow data transfer from the server to 2 of the desktops. The other 14 desktops are fine. However the data transfer from the workstation to the server is lightning fast. Example - I can move a 50MB file from the workstation to a share folder on the server in 5 seconds. However, if I attempt to move a 50MB file from the server to the desktop, it takes 15 minutes, if it even finishes. This is of course affecting email and MAS90 the most.
Things I have tried:
My laptop on the cable works fine.
New port on switch
new cable at local side and at punch down.
Set NIC to 10 full, 10 half, 100 full, and 100 half duplex - no help
Rebuilt Winsock and network stack
Uninstall reinstall NIC
Various speed test tools all show data xfer to be ridiculously slow. I saw on the forums here someone recommended using QCheck. Using Qcheck, it says my throughput from the workstation to the server is running at 95.46MBps. However, running Qcheck from the server to the workstation is showing 467kbps. This holds true for both computers.
Can anyone tell me what the heck is going on? Why do I have 2 of 16 going nuts and the rest zipping right along?
Thanks,
Jamie
|
Answer : Slow access from server to desktop, fast access from desktop to server
|
|
What is the OS of the two Desktops?
It sounds like the issue is with the two new desktops. Don't change anythign at the server(s).
Few things to look at, refer to the xp/vista portion of the articles:
http://support.microsoft.com/kb/925511
if you have vista:
- Run a command prompt (cmd.exe) as an Administrator
- Type: netsh interface tcp set global autotuninglevel=disabled
If you want to to re-enable it:
- Type: netsh interface tcp set global autotuninglevel=normal
In some cases you may need to use this command in addition to the above, but I didn't have to:
- Type: netsh interface tcp set global rss=disabled
http://support.microsoft.com/kb/822219
http://support.microsoft.com/kb/296264
This says NT4/win2k but it applies:
http://support.microsoft.com/Default.aspx?kbid=888562
|
|
|
|
|
