Re: TCP/IP Performance

["Jim Franz" <franz400@xxxxxxxxxxxx>]

Have you ruled out the capabilities of the hubs, switches, routers in
between?
jim
----- Original Message -----
From: <mgarton@xxxxxxxxxxxxxxx>
To: <midrange-l@xxxxxxxxxxxx>
Sent: Wednesday, April 23, 2003 10:07 AM
Subject: TCP/IP Performance


> My company is running one of the High Availability products to replicate
> (via sockets) our corporate system to our DR system in a data center 400
> miles away.  We have a 9 Mbps WAN link that is dedicated to this process.
> The problem is that we are not able to fully utilize the pipe even though
> the HA product shows that there are transactions backed up waiting to be
> sent.  Currently we are only able to utilize 5 to 6 Mb of the pipe.  We
> have ran performance reports on production system (model 830, V5R2) and
> there are no errors on the line and the IOP is not over utilized.  We have
> set up a separate memory pool for the HA application.  It doesn't seem to
> make a difference if the system is busy or not.  I have tried working with
> the HA product vendor, our network people, and the communications vendor
> and nobody has found anything problems.  Does anyone have any other
> suggestions?  I was wondering if there is something that we could tweak in
> the TCP attributes on the production system to get better throughput.
> Thanks in advance.
>
>
> Mark Garton
> Disaster Recovery Team Leader
> O'Reilly Auto Parts
>
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