Considering the origins of NFS, it probably makes sense... Still, I
have yet to see a problem attributable to NFS mounts here.
My LDM data does come in on one machine, and has to traverse a router or
2 to get to my Gempak machine for processing. I'll be most interested
in performance after I can phyically colocate the 2 machines on the same
subnet.
Robert Mullenax wrote:
I have used RH Linux boxes as well with out any
huge problems, but they are still noticeably
slower than Solaris x86 boxes doing the same
thing, especially as load and file size increases.
-----Original Message-----
From: Gerry Creager N5JXS
To: Robert Mullenax
Cc: 'Patrick O'Reilly'; ldm-users@xxxxxxxxxxxxxxxx; gembud@xxxxxxxxxxxxxxxx
Sent: 11/14/2003 8:57 PM
Subject: 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
"No trees were killed in the making of this e-mail...however,
a large number of electrons were horribly inconvenienced."
--
Gerry Creager -- gerry.creager@xxxxxxxx
Network Engineering -- AATLT, Texas A&M University
Cell: 979.229.5301 Office: 979.458.4020 FAX: 979.847.8578
Page: 979.228.0173
Office: 903A Eller Bldg, TAMU, College Station, TX 77843
