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Re: MLM question (limits)

To: nv-l@lists.tivoli.com
Subject: Re: MLM question (limits)
From: Leslie Clark <lclark@US.IBM.COM>
Date: Wed, 8 Sep 1999 14:49:46 -0400
I knew I should not have said that because someone would ask
me to back it up and I cannot find the document. But in my notes from
an update from 9/97 I wrote that down. I also wrote down that the
reason had something to do with it being mulit-threaded on the NT.
It is not the same code as it is on Unix.  When you get a chance to
do something over, sometimes you make it better!  It is also true
that the Unix version has improved over the years.

I don't have access to the data, but I am comfortable telling you that
the two platforms have different performance characteristics re MLM.
And now I am going to shut up on this subject before I get in trouble.

Cordially,

Leslie A. Clark
IBM Global Services - Systems Mgmt & Networking



Did I read that right
NT on a Pentium outperformed UNIX on a server
What size boxes. How can NT handle thousands and UNIX only hundreds - sounds
like something is wrong there
Where can I get that benchmark info

> -----Original Message-----
> From: Leslie Clark [SMTP:lclark@US.IBM.COM]
> Sent: Wednesday, September 08, 1999 11:26 AM
> To:   NV-L@UCSBVM.UCSB.EDU
> Subject:      Re: MLM question (limits)
>
> Like Netview, there are no architectural limits to what the MLM can
> support. It depends on your hardware and your network and your
> polling cycle.  Someone will correct me if I am wrong about this. That
> said, there were some benchmarks done that showed that the MLM ported
> to NT performed better than the Unix version which was originally
> designed for LAN use. The NT MLM has been benchmarked monitoring
> thousands of interfaces (in a lab environment, where network
> latency does not come into it).The Unix MLM is intended for hundreds.
> So probably you only need to worry about where you want the traffic and
> how many MLMs you want to be administering and how big a box you can
> afford.
> And of course how much more that up/down status you are monitoring.
> I know this does not help much, but there it is.
>
> Cordially,
>
> Leslie A. Clark
> IBM Global Services - Systems Mgmt & Networking
>
>
>
> What is the maximum number of devices that a MLM can support?
>
> Best Regards,
>
> Frank W. Hansen
> Tivoli Enterprise Certified Consultant
>
> Enterprise Innovations
> www.enterpriseinnovations.com
> 910 458 9172


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