Re: NFS performance question

["Matthew Gillen" <user=50@nabble.blu.org>]

 Jerry Feldman wrote: 
> When we run our application, then save the data on both the NFS server 
> and one of the NFS client machines in the server room, the save takes 
> just a second or 2. But, when I save on one of the servers in the 
> office the save takes nearly a minute.  I checked the 2 switches and 
> they show all relevant connections as being 1GB. So, the differences 
> between machines are: 
> 1. NFS client in server room RHEL4U3, connected directly to the switch. 
> 2. NFS client in office RHEL4U6 connected to a 1GB switch that is 
> connected via an office patch panel to the switch in the server room. 
> 
> Note that when I ping the systems from the server room, I get similar 
> responses (under .5ms) All the systems are on the same subnet. 
> 
> I am not seeing any nfs related messages on any of the client machines. 
> ... 
> I've got plenty of memory on those systems in the server room (16GB) 
> and I'm not showing any swap activity. 
> 
> The question is any idea why the 2 RHEL4U6 systems seem to have such 
> poor NFS performance.