DSNT437I REGION SIZE IS TOO LARGE

Explanation
  The numbers you specified produced
a region size estimate of more than 8000KB. This estimate does not
include the storage required for SWA, because it is assumed that you
placed SWA above the 16MB line. 
  This message is issued by
the following installation CLIST: DSNTINST

System action
  The CLIST continues, but does not produce edited
jobs.

User response
  Check the numbers entered for numbers of concurrent
users and databases, buffers, and plan sizes. One or more of these
numbers needs to be reduced.

Problem determination
  If you suspect an error in the process,
set CONTROL(CONLIST) and invoke the CLIST. This produces tracing for
error documentation.
For more information about activating the
CLIST trace facility, see the DB2® diagnosis
information.

Severity
   8 (error)