Sean Gleann wrote:

>Hello Peter
>Problem solved!

Excellent. Thanks to Peter Hunkeler. 


>Your idea(s) regarding the SMF30 record analysis eventually led me to 
>reproducing the test environment used by the developer so that I could run the 
>tests myself.

This is what IBM (and other vendors) also does and recommends. Try to reproduce 
the problem yourself.


>One look at the command being used showed what the problem was - there was a 
>parametrised upper limit of 768M on the memory to be used. The developer had 
>completely missed this information. Bumping the parm value to 1G was enough to 
>get the test through, 

Ouch! So despite all the tuning and resizing attempts, it was the application 
itself which restrict itself too much using a too small value...


>... but I'm still arguing for all such limits to be removed - "let the system 
>sort itself out, don't try and 'second guess' things..."
>Such a simple thing, spotted by a different set of eyes being used, but that's 
>frequently the root cause in problems such as  this, I find.

Agreed! I also find that some weird problems are caused by our clients who 
develop their own applications. Sometimes I recommend - backout changes - 
attempt to recreate the problem - voila, problem resolved.

Groete / Greetings
Elardus Engelbrecht

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