RE: IFS Performance

[Chris Bipes <chris.bipes@xxxxxxxxxxxxxxx>]

But still you are comparing a dedicated win2k box to an AS400 that was not
configured for file serving as the primary task.  Now create a subsystem,
memory pool, and class for the NetServer jobs to run in.  Give it a high
priority and the memory to run.  Now compare the two boxes.  How much better
does the as400 do compared to the previous configuration?  Simple tuning on
the iSeries can greatly increase performance.

If your iSeries is reaching it limit because it is older and slower and
running out of resources, (CPU, Memory, Disk arms), then adding an
additional task will cause poor performance.  When you put all the pieces
together, Backup, management, licenses, etc. the consolidation can justify
itself.

Chris Bipes

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of James Rich
Sent: Tuesday, January 25, 2005 10:28 AM
To: Midrange Systems Technical Discussion
Subject: RE: IFS Performance


On Tue, 25 Jan 2005, Chris Bipes wrote:

> 2. What else does your Win2K Pro box do?  Is it only serving up this one
> file?  How much memory and what type of disk drive(s)?  Now go get a
> dedicate AS400 just for file serving and turn off everything else.  Tune
it
> correctly and see if it performs as well as the PC server.  Let's compare
> thing equally and fairly.

While a dedicated iSeries may well perform better, I don't really think 
that is the point.  The reason for putting the files on the iSeries in the 
first place is consolidation.  But if doing so ruins performance then 
consolidation is not the answer.  If the iSeries purports to solve 
problems by cosolidating machines, it had better perform well when doing 
so!  I am certainly not going to spend many thousands more to get a big 
enough iSeries to handle the additional load of this one task when I can 
spend a few hundred and get a linux box that will run circles around it.