07-04-2002 01:41 AM - edited 03-01-2019 11:33 PM
We are experiencing performance problems. When doing a filecopy between two NT4s we get about 7MB/s. When doing a blast (wsttcp.exe) I get around 30 MB/s between the two server. A local blast to the loopback gives 30 MB/s and 55MB/s for the two servers. I do not see any errors increasing on the port of the CAT4003 with WSX4418 module and on the NIC statistics...
I would expect around 100 MB/s when doing a blast on Gb??
07-04-2002 04:03 PM
Describe your servers. What processor speed? Are you using 64 bit NICS in 64 bit / 66Mhz mode?
Aside from that, NT4 is somewhat less than a "performer" with high speed network interfaces.
Are you using fiber or copper?
If copper, have you tried other media? Are the jumpers you're using hand-made or purchased? Have you tried other physical paths?
If fiber, have you checked to see that the ends are clean & well terminated? Have you checked for extreme bends (smaller than a 1-2" radius) / kinks / nicks / connectors with no strain reflief? Did you also check the panels to see that the jack is clean / dust-free / in good shape?
What version of code are you running on the switch? Firmware Revs?
07-12-2002 03:33 AM
Two Compaq ML370 (933 mhz).
I am using Intel Pro/1000 (sx).
What would you expect as acceptable speed??
07-12-2002 05:18 AM
I don't have the details in front of me (and my brain was already full - so I don't have it memorized) but NT sets the TCP parameters differently depending on the type of file transfer (pushing a file or pulling a file) etc. Look at the Microsoft web site for some information. You may gain some speed if you hack the registry. Good luck.
07-12-2002 04:40 PM
Have you check for NIC issues described in the following document:
www.cisco.com/warp/customer/473/46.html
I recall something about using NT4.0 with Compaq Netflex requires the compaq driver for performance over the standard Windows driver.
07-14-2002 05:33 PM
I am not sure if you have disabled the full duplex function in NIC and Router.. I have experienced the similar problem before. It works after I did it.
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