Re: [ADSM-L] TDP for Mail (Domino) throughput

We did the test with a 2 GB file.

We ran an ftp 4 times and our results yeilded file transfer speeds of 29MB/s.



-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of 
Francisco Molero
Sent: Thursday, June 07, 2007 12:06 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: TDP for Mail (Domino) throughput

Hi Jim ,

One idea is to run a ftp from Domino Server to TSM Server and after that run 
the same with TSM. It is important clarify if your pb is reproduced with ftp. I 
should have taken into account the fs cache in your tests.


----- Mensaje original ----
De: Richard Sims <rbs AT BU DOT EDU>
Para: ADSM-L AT VM.MARIST DOT EDU
Enviado: jueves, 7 de junio, 2007 3:20:23
Asunto: Re: TDP for Mail (Domino) throughput

Jim -

You don't say what conclusions you drew from the included client performance 
statistics.  If you haven't already, see the Performance topic in chapter 1 of 
the TDP Domino manual for some perspective on what your numbers indicate.  
Whereas the Consumer session is twiddling its thumbs waiting for buffer filling 
by the Producer session, it suggests that the disk system that the database is 
on is stinko, or that there are impediments to the I/O.  This is borne out also 
in the ReadWrite vs. SendRecv numbers.  Ideally, you should have benchmark data 
from when the disk system was introduced, to know what it's throughput limits 
are, to compare against what you're seeing now.  You can employ various 
monitoring tools in AIX to look for disk contention, artificial degradation due 
to process re-nicing, etc.  I should think that your Notes guy has already 
checked for a generous / buffers value, but make sure.

    Richard Sims






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