RE: Model 270 At V5R2 Is Dead Toad Slow Running JDE One World.......

["Mike Shaw" <mhshaw@xxxxxxxxxxxxxxxx>]

Machine Pool is at 204.5 MB.  Machine pool is fine.

Regards,

Mike Shaw

-----Original Message-----
From: midrange-l-bounces+mhshaw=worldnet.att.net@xxxxxxxxxxxx
[mailto:midrange-l-bounces+mhshaw=worldnet.att.net@xxxxxxxxxxxx] On
Behalf Of Igor, aka J Oberholtzer
Sent: Sunday, April 13, 2003 12:36 PM
To: Midrange Systems Technical Discussion
Subject: Re: Model 270 At V5R2 Is Dead Toad Slow Running JDE One
World.......

<snip>

That is all fine, system is set to tune itself via system value
settings.  Pools are the same size at V5R2.  

</snip>

Mike,

The tuning may just be the problem.  V5R2 needs more memory at the *BASE

and Machine pool levels.  If you're system has not been properly tuned, 
the memory allocations could be wrong.  Keep in mind that the system 
tuning features like to give memory and activity levels to pools, but 
rarely does a good job of removing them.  OS/400 lives in *BASE and 
Machine pools and if OS/400 struggles for resources, so will JDE.  I 
would suggest a manual tuning first, giving *BASE and Machine pool more 
memory and let the system go from there.  Here is the formula for 
setting the base and machine pools:  

S=M+J+L+F+D + Guest(Linux)
        S =  Base
        M = Minimum Machine pool size
        J  = Job Space
        L  = Communications Space
        F  = Functional Space
        D  = Disk Space
    Guest  = Total memory given to Guest Partitions

The Machine pool should be set with this formula:
Multiply main storage by .04
Add 12mb (12288K)
So, a 2048 MB machine:
            2097152 * .04 + 12288 = 96175k
             97 MB Is minimum

Then allocate the balance of the memory to the rest of the system.  Also

keep in mind that a 2gig/processor minimum is generally accepted as the 
minimum memory for the advanced OS versions.  V5R2 is significantly 
bigger than V5R1.  It  has significantly better functionality as well, 
thus the reason for the size.  

Another thing to be aware of.  Unless you have changed it, JDE runs all 
the QZDASOINIT jobs it needs in *BASE.  In my view a very bad thing. 
 With that configuration JDE is fighting OS/400 for resources.  Everyone

looses in that case.  You should consider moving these server jobs into 
a separate subsystem where you can properly tune and control them.

Just my $0.02, however I have been there done that with JDE tuning
before.

Igor at www.franenseries.com
aka:  Jim Oberholtzer
        IBM Certified in Design, Implementation, System Admin and lots 
of other areas.


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