Re: LDM/GEMPAK NFS Question

Then again, the only problem I can attribute to using nfs on RH9 is some remaining virus traffic.
I'm running v3 here on Mesonet. We do some "interesting" cross-mounts without problems. 

gerry

Robert Mullenax wrote:

Under RH 6.2, we would have to specify NFS version 2, but this
version of RH supports version 3.  I would maybe look at NFS
versions to see which version each box is running.

As an aside, based on a lot of NFS use here..
I will say that you will be much happier in the long run
if you just ran Solaris x86 instead of RH 9. NFS was and continues to be a problem on Linux. You will never get 
the same NFS performance with a Linux NFS server as you
would with a Solaris box (SPARC or x86).

Robert

-----Original Message-----
From: Patrick O'Reilly [mailto:patrick.oreilly@xxxxxxx]
Sent: Friday, November 14, 2003 12:29 PM
To: ldm-users@xxxxxxxxxxxxxxxx; gembud@xxxxxxxxxxxxxxxx
Subject: LDM/GEMPAK NFS Question


Hello,

I am switching my LDM machine from a Sun Solaris 8 machine to a PC running
RedHat 9.  This PC will feed the data via NFS to 4 Sun Solaris 8 machines,
who in turn run GEMPAK scripts on the data and post imagery to the web.  My
prior setup had the 4 Suns mounting the NFS share of another Sun and things
went well.  I just made the switchover, i.e. made the PC/Redhat machine the
NFS server to the 4 Suns, and the mount went fine.  The problem is, now the
GEMPAK scripts take a very long time to run on the Suns.  A simple script
takes a couple minutes where it used to take 20 seconds.  I am assuming that
this is because of the communication between the PC and the Suns via the NFS
mount.  Are there any NFS settings I can use to make the data read faster?
Is this even the problem?  Has anyone faced this problem?  Any wisdom on the
situation would be helpful.  Thanks!

Patrick
_______________________________________
Patrick O'Reilly
Meteorological Decision Support Scientist
The STORM Project - University of Northern Iowa
patrick.oreilly@xxxxxxx  ~  ph: 319-273-3789
http://www.uni.edu/storm

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Gerry Creager -- gerry.creager@xxxxxxxx
Network Engineering -- AATLT, Texas A&M University  
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