What starts printer writers?

Trying to figure out what starts printer writers.

Significant situational facts:

Two i5's.  Both running V5R3 and comparable ptf levels.
CHGIPLA on both machines both have STRPRTWTR(*YES)
DSPSYSVAL QSTRPRTWTR on both machines is set to 1=Start
DSPSYSVAL QSTRUPPGM on both machines point to QSYS/QSTRUP.
DSPPGM QSYS/QSTRUP on both machines looks like:
Program creation date/time . . . . . . . . . . . :   12/04/03  12:50:07
Type of program  . . . . . . . . . . . . . . . . :   OPM 
Source file  . . . . . . . . . . . . . . . . . . :   S000039122 
  Library  . . . . . . . . . . . . . . . . . . . :     $BLDSS1 
Source member  . . . . . . . . . . . . . . . . . :   S000039122 
Source file change date/time . . . . . . . . . . :   11/30/03  20:06:43

There is a writer P01A01 on both machines.

Doing a DSPLOG PERIOD((0915 011505)) JOB(P01A01) where the time and date 
is based on the start time/date of subsystem QCTL shows thus on our 520:
Job 494913/QSPLJOB/P01A01 started on 01/15/05 at 09:17:06
Nothing in it's joblog indicates where it was spawned from.

Doing a DSPLOG PERIOD((1900 011505)) JOB(P01A01) where the time and date 
is based on the start time/date of subsystem QCTL shows thus on our 570:
(nothing until the writer was manually started this morning)

*****************************************************************************************************
Why is it started on the 520 and not on the 570?  Why did it not even 
attempt to start in on the 570?
*****************************************************************************************************

DSPSBSD SBSD(QSPL)
All options are identical on both machines.
DSPJOBD JOBD(QGPL/QSPLSTRWTR)
All options are identical on both machines.


Rob Berendt
-- 
Group Dekko Services, LLC
Dept 01.073
PO Box 2000
Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com