RE: Is anyone using NFS?

["Ingvaldson, Scott" <SIngvaldson@xxxxxxxxxxxx>]

When we first set this up about 2 years ago NFS gave us about a
three-fold performance increase over NetServer attached drives.  We have
been using the same (4.13) client this whole time.  Xlink says that this
is the "current" version.

What we are doing is converting metacode output from our mainframe to
pdf documents and then storing them on the iSeries using Content
Manager.  The conversion application, Xenos d2e, works fine when writing
pdf's to local drives but is painfully slow writing to NetServer
attached drives.  Before the V5R3 upgrade using NFS improved the
performance dramatically.  Now NFS is slower than NetServer.

What I'm really trying to figure out is what changed with the V5R3
upgrade.  As the application programmer says, "it worked before, why
doesn't it work now?"

Regards,
 
Scott Ingvaldson
iSeries System Administrator
GuideOne Insurance Group


-----Original Message-----
date: Thu, 3 Nov 2005 10:29:47 -0600
from: "Joe Pluta" <joepluta@xxxxxxxxxxxxxxxxx>
subject: RE: Is anyone using NFS?

Why are you using NFS?  You can map drives from Windows to the iSeries
without NFS.  Also, I notice that 4.13 of Omni-lite is a new version,
and that version 4.12 seems to be a total rewrite; are you sure the
problems aren't in the Omni-lite package?

Joe

> From: Ingvaldson, Scott
> 
> Is anyone using NFS for anything?
> 
> After upgrading to V5R3 we have noticed significant (by a factor of
> about 10, what used to run 2-3 hours now runs all day) degradation in
> throughput on an NFS connection.  (Mapped drive to Win 2000 using
> Omni-lite 4.13 NFS client)
> 
> We've run traces and Supportline says that it is unlikely that they
can
> significantly improve the performance as 90% of the conversation time
> takes place outside of the iSeries.  However, the V5R2 --> V5R3
upgrade
> definitely started this problem.



------------------------------

message: 8
date: Thu, 03 Nov 2005 10:24:54 -0600
from: David Gibbs <david@xxxxxxxxxxxx>
subject: Re: Is anyone using NFS?

Joe Pluta wrote:
> Why are you using NFS?  You can map drives from Windows to the iSeries
> without NFS.  Also, I notice that 4.13 of Omni-lite is a new version,
> and that version 4.12 seems to be a total rewrite; are you sure the
> problems aren't in the Omni-lite package?

I concur on this ... if you're mapping the drives to a windows system,
then use Windows networking.

NFS makes more sense in a *nix environment.

david