>I would expect different SHRPOOLS to be cumulative, would probably bet big
>money on it, even though I don't really know such from  documentation much
>less a dump. But what about multiple BLSR requests for the same SHRPOOL.
>Does it sum them up and BLDVRP for the sum, just the largest, or what?

The first ACB opened causes the BLDVRP to be done using the parameters for 
that DD only. You should receive message CSR024I indicating SHRPOOL 1 is 
being reused when the second ACB is opened.

If H99NMODF is opened first, the buffer space is (4096*7972)+(8092*272) = 
over 33 meg. If H99NPFLG is opened first, the buffer space is (4096*4070)+
(8192*532) = over 20 meg. 

>No the concern is not performance, the concern is memory. We are a little
>tight on what we allow in REGION around here and 48M in a SHRPOOL at least
>50% of which seems to be TOTAL waste doesn't get it. The step sucks up 
>189M above the line and crashes.  The JCL is a bit more reasonable on the 4 
>or 5 files in the default SHRPOOL.

I agree that the oversized buffers are wasting space. If the BUFSI and BUFSD 
are defaulted, then the space is 'minimized'. However, if the two files had 
different CI sizes, then your specification would not work if the one having 
the 
smaller CISIZE were opened first. 

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