SUMMARY: Weird NFS performance problems on solaris 8 and netapp

From: McEwan, Ryan <>
Date: Wed Sep 29 2004 - 12:29:36 EDT
Many thanks to those that replied with suggestions.  It turns out to be a
bug in the NetApp software version that I am running.
The Solaris 9 machine that worked great was reverse dns'ed.  The Solaris 8
machines were not.  Since they were not reverse dns'ed the netapp was
failing with a gethostbyaddr call and thus causing the slowness.  The
solaris 8 and 9 differences caused me to go down the wrong path, but
eventually truth prevailed.
The work around is to reverse dns the servers or add them to /etc/hosts file
on the filer itself.  They have also fixed something to prevent this in a
later release of the software.
Once again,
many thanks


From: McEwan, Ryan 
Sent: Tuesday, September 28, 2004 2:24 PM
To: ''
Subject: Weird NFS performance problems on solaris 8 and netapp

I recently installed 2 Sun V210 servers (Solaris 8 HW4 update) with 1 week
old patch recommended cluster.  I am noticing painfully slow nfs performance
to a volume mounted to a NetApp filer.  When I try to access the same netapp
volume from a Solaris 9 machine (Sun 220R with Solaris 9 U7 and 1 week old
patch cluster) I see great performance.
Where am I going wrong or what can I begin to check?
I have hard coded the /dev/bge0 settings and cisco switch to match as
ndd -set /dev/bge0 adv_1000fdx_cap 0
ndd -set /dev/bge0 adv_1000hdx_cap 0
ndd -set /dev/bge0 adv_100fdx_cap 1
ndd -set /dev/bge0 adv_100hdx_cap 0
ndd -set /dev/bge0 adv_10fdx_cap 0
ndd -set /dev/bge0 adv_10hdx_cap 0
ndd -set /dev/bge0 adv_autoneg_cap 0
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Received on Wed Sep 29 12:29:26 2004

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