I have not tried this, but IBM supplies a RACF started task whose purpose is to 
issue RACF commands via a console. As supplied, the RACF STC has no DDs, but I 
suppose you could add one for the primary and maybe even alternate RACF data 
base(s) with DISP=SHR. The hard part of coding such a task has already been 
done. Stopping it seems to require FORCE ARM, but you wouldn't stop it very 
often anyway. 

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J.O.Skip Robinson
Southern California Edison Company
Electric Dragon Team Paddler 
SHARE MVS Program Co-Manager
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robin...@sce.com


-----Original Message-----
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf 
Of Jesse 1 Robinson
Sent: Tuesday, May 23, 2017 11:03 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: (External):Re: RACF Database (was: Sample JCL for file transfer using 
NJE/TCPIP)

I've been expecting someone with actual experience in this area to jump in. I 
don't think you can get away with 'wait forever' logic. Eventually you'll get 
S522 abend. OTOH XCFAS, which preserves a permanent enqueue on LINKLIST 
libraries, seems to be very busy doing something, accumulating both CPU time 
and EXCP count. Maybe there's something on CBT?

<snip>

-----Original Message-----
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf 
Of Paul Gilmartin
Sent: Monday, May 22, 2017 4:58 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: (External):Re: RACF Database (was: Sample JCL for file transfer using 
NJE/TCPIP)

On Mon, 22 May 2017 17:44:16 -0500, Joel C. Ewing wrote:

>RECFM PSU may prevent moving the database, but it doesn't block 
>deletion.  After realizing this somewhat-essential data set wasn't 
>protected by an enqueue, we picked an installation started task that 
>was normally running all the time (but which could be shut down if need 
>be), and added an unreferenced DD for the RACF database with DISP=SHR 
>to reduce the odds of both accidental deletion and movement.
>
Suppose one wanted to craft a started task expressly for that purpose, using 
minimum resource.  Would it suffice to WAIT on an ECB that you never POSTed?  
Would this annoy WLM?  Is there a better way?  Should it intercept a STOP 
command and WTOR with an Abort/Retry/Ignore prompt?  What's the OS Classic 
analogue of SIGINT?

-- gil


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