Copying files to server very slow

[DavidRock]

We recently upgraded the servers at each of our sites from Windows NT to 2003 Standard Server.

Since then, when our users at one particular site copy a file from their pc to their server, it takes about 50 seconds for a 3MB file. Everyone has 100Mbps connections. It doesn't matter if they use Explorer or save from Excel, etc.

Copying files the other direction - from server to client - happens very, very quickly.

None of our other servers have this issue. We have a single domain, which all machines are a part of.

I've tried the basics: rebooting, new network cable, turned off antivirus software etc.

Can someone give me a few pointers to begin looking deeper? Or direct me to network tools that will help me analyze what's happening when a file is saved to the server?

Thank you in advance,
David Rock

 

[monsterjta]

First, check what mode your server is running in. I don't think it would make a huge difference, but still...

Also, check your antivirus config. Is it scanning on reads/writes/both? Some of these virus programs take a while for the 'on-access' scanning. (check both workstation and server)

Is there a policy setup on the server that is throttling incoming connections?

Do you have 2 nics on the server with full-duplexing?

Hmm, interesting dillema you have.

Hope This Helps,

Good Luck!

(I do what I can with what I know)

 

[itsp1965]

Although you checked cabling. Check your driver to ensure that it is not running on a duplex/speed setting of automatic. Make sure that both the switch port setting and that of the NIC are in synch. I had a similar issue with a site I upgraded recently whereby we assumed that all switch ports were hardcoded at 100Mbps/Full Duplex. I also had a hard time copying files in this case.