MCCAFCTH is not applicable in this case.  You are correct that this is a LPAR 
level control.

The only "out of the box" solution I can think of is to run the job "V=R' . See 
VRREGN in SYS1.PARMLIB(IEASYS00).
NOTE: An IPL is*REQUIRED* to change this value.....

Of course, you could write a "driver program" to do what you want. i.e. obtain 
the real storage and then invoke JAVA. JZOS *may* be of some help here.

HTH,

<snip>
I would like to ask more experienced sysprogs regarding real storage manager.

Is it possible to limit number of frames of real storage on job level? The 
MEMLIMIT/REGION parameters limit virtual memory of whole address space however 
I would like to limit the only real memory while the virtual memory remain as 
it is.

The reason why I need it; I would like to test the performance of a (Java) 
application in case of lack of frames of real storage. In case of shortage of 
real storage a paging is expected. And I would like to simulate this situation 
to see impact a performance of  the Java application.

I have found  MCCAFCTH (defined in IEAOPTxx) but this seems to be LPAR (not 
job) specifics and moreover this defines length of available frame queue (not 
number of frames per job).
Thx for hints.
</snip>

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