[TriLUG] NFS performance issues - Solved

[Kevin Flanagan]

I did some testing today, apparently it was the Nortel switch and the HP
onboard NIC interaction.  I have seen a lot of cases with the Nortel
gear we have where setting the NIC to auto doesn't work right, you have
to set it to 100Mb/Full Duplex by hand.  

Is it just me, or does this sound like crap to others?  Why do we have
auto if some combinations of vendor gear don't work right?  I never had
this problem with Cisco switches and HP servers.



Kevin


On Fri, 2004-07-23 at 06:32, Kevin Flanagan wrote:
> I have a problem at work, and I'm digging around for thoughts, here's
> the deal.
> 
> AIX 5.1 system exports /tmp/whatever to the world, unrestricted.
> 
> 2 Windows 2003 servers with MS Services for UNIX NFS clients mount that
> export.
> 
> 
> Performance is absolutely unusable.
> 
> 
> Here's what I have done about troubleshooting.
> 
> 
> - Another AIX system can mount that same exported file system, and
> performance is just fine.
> 
> - A Windows 2000 system can mount a Linux export with the same SErvice
> for UNIX stuff and performance is just fine
> 
> - The systems are all 1 hop on the network apart
> 
> - The network guy is looking at all of the port settings, etc today
> 
> 
> 
> I don't control the AIX system to get a lot more info, but the admin is
> a good guy, basic NFS installation, no tweaking.
> 
> 
> Anybody got any thoughts that don't include lighting the Windows systems
> on fire?  ;-) The app requires them.
> 
> 
> 
> 
> 
> Thanks!
> 
> 
> 
> 	Kevin
> 
> 
> 
> -- 
> 
> +--------------------------------------------------------------+
> If you never see anything that offends you, you aren't living in a free
> society
> 
> Kim Campbell - Former Canadian Prime Minister
-- 

+--------------------------------------------------------------+
If you never see anything that offends you, you aren't living in a free
society

Kim Campbell - Former Canadian Prime Minister