IIRC it could also pick up from the USER= or NOTIFY=


CIT | Ken Porowski | VP Mainframe Engineering | Information Technology | +1 973 
740 5459 (tel) | [email protected]



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-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf 
Of Vernooij, CP - SPLXM
Sent: Monday, April 15, 2013 9:52 AM
To: [email protected]
Subject: Re: [IBM-MAIN] Strange response to SDSF PREFIX command

Interesting enough to make me go search.
For a change I jumped to RTFMing with PF1 and it shows:

Purpose:         Limit the jobs that are displayed by job name.
   (In some cases, this involves columns other than JOBNAME.
   See the note at the end of this topic.)
 ...
With the PREFIX command, two additional columns may be used.
For jobs that entered the system through the TSO/E Interactive
Data Transmission Facility (netmail), SDSF compares the value
for the PREFIX command with a value that is displayed in the
Wtr column (output external writer name) or as part of the
Dest column (JES print destination name).

Does this help?

Kees.


-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf 
Of EXT-Schwarz, Barry
Sent: Monday, April 15, 2013 15:41
To: [email protected]
Subject: Strange response to SDSF PREFIX command

We have a sequence of JES2 commands that run at 1600 every day to purge output 
more the 7 days old.  For reasons almost lost in antiquity, the sequence 
avoided purging jobs/tasks that begin with S.  When I first noticed several 
hundred jobs in the output queue (SDSF command O), I started looking for a 
pattern.  I issued the PREFIX A* and saw a few but they were recent.  I then 
issued PREFIX B* and dozens of jobs name SU00Y appeared.  (If it matters, the 
prefix commands were entered in lower case.  I capitalized them here for ease 
of reading.)  I have never seen a response that didn't match the prefix before. 
 This is on z/OS 1.11.
Thoughts anyone?

PS - After finally recalling the reason for this, the fix to the command 
sequence is to add $PJQ(S*),JM!=SYSLOG,A>7 but I'm still curious why SDSF 
thought SU00Y matched prefix B*.

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