Re: [foxboro] 0% idle time & More than 80% iowait on AW51B

This has been a known issue for some time now.
The problem is: If you have ANY IPX/Novell traffic on your second =
Ethernet
port, the AW51 will begin to slow down over time until you reboot.  It =
has
something to do with the Sun workstation parsing every IPX packet it =
gets.

If you have IPX/Novell traffic on your second Ethernet port, you must
isolate that network traffic from the AW with a router.  An common
inexpensive network switch (not a hub) may also work, but I am not 100% =
sure
about that.

Your local Foxboro field service should know about this problem, and =
offer
the router installation service.  Alternatively, Alex Johnson's network
group (Foxboro/Houston) can help out also.=20

Hope this helps!
Mark Dumond
Sr App Engineer
FeedForward, Inc
Applications Engineering


-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx] =
On
Behalf Of Ashley Davey
Sent: Saturday, August 30, 2003 3:40 AM
To: foxboro@xxxxxxxxxxxxx
Subject: Re: [foxboro] 0% idle time & More than 80% iowait on AW51B


Hi Ajay

I can't comment on your idle time problem, but I have encountered =
strange
AW51 performance issues in the time before we installed a router between =
our
IA network and the Corporate LAN.

From what I can remember the Sun network cards have an issue with IPX
traffic and the onlyway to restore performance is to re-boot the =
affected
box.

Hope this helps.

Regards

Ashley Davey
Systems Engineer
African Products (Pty) Ltd
Gauteng, RSA
Tel : +27 11 458 5342
Fax : +27 11 458 5343
Mobile: +27 83 4535169

>>> Ajay.Tathgir@xxxxxxx 30/08/03 7:53:44 AM >>>
Hi! All

We have a AW51B running on Version 6.1. Yesterday on running top, i saw =
that
the cpu idle time is 0%, and the iowait time was running between 70 - =
90%.
We have had 0% idle time problems before, but then there was always a
process out there who was eating away the cpu time. But this time around
there was not a single process of that kind. Could somebody through some
light onto this one.

Just a piece of additional info. Around 20-25 days back I had connected =
the
second ethernet port directly to out Plant LAN, without anything =
in-between.
And there is all kinda traffic on this LAN, IP, IPX, NetBEUI, DECnet, to
name a few.

Are the above two related.


Thanks & Regards

Ajay Tathgir

Reliance Industries Limited
Mumbai - India


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