Performance problem with gigabit cards 1

[Speridal]

Hi!

We have a compaq ML530 Server and a DL580 Server. I have massive performance problems when I copy a file from server A to server B.
The ML530 server (server A) has a NC6134 gigabit card and the DL580 (server B) a NC6136.

I thought the switch could be the problem, so i connected both cards with an x-link cable. that did not help at all.

The strange thing is that the speed depends on the direction in which i copy the data.

from server a:
copy a file from server b to local hdd (500MB): 2 minutes
copy a file from local hdd to server b (500MB): 40 seconds

The only protocol we use is TCP/IP. I tried both driver versions (2.87.287 and 3.63.363).

I've run out of ideas. Do you have any suggestion?

Oh, I nearly forgot: We have no card that shares its IRQ with the NIC.

Thx4help!

 

[TheLad]

Are both servers set to the same network speed/duplex?

Eg. 100Mb Half-Duplex -----------------------------------------------------
"It's true, its damn true!"
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[Speridal]

the nics are gigabit cards (1000/full).
you cannot change this setting in the nic properties.

 

[TheLad]

My apologies, I shall clean my glasses and learn to read properly

I take it you have installed the latest drivers etc.... Just out of interest, what IRQ is each card using? -----------------------------------------------------
"It's true, its damn true!"
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[HeidarG]

Hi
there is a known problem with the 3.63.363 gigabit driver
(see other posting about backup problems)
upgrade to driver 6.2.23.0
can be found at

http://h18007.www1.hp.com/support/files/server/us/locOsCat/20_3.html

if you are using a teaming upgrade it as well to 7.11.711.1

regards
Heidar

 

[diamondlod]

HeidarG is correct - what is likely happening is that the cards are negotiating to different speeds or duplexes, which can cause the problem you are having.