Thanks for the command syntax. I did not know about the SADMP option. As I 
mentioned earlier, we first 'exercised' the auto IPL scenario when one LPAR ran 
out of real storage. System was IPLed around 05:00. No one else even noticed. 
Like you, I was sure someone had done it, but no, it was actually self-induced. 
It happened several times. Even with SAD the cause was elusive. 

With a PMR open, I posted on this list. One esteemed List contributor recalled 
having made a change to z/OS (!) that could be the culprit. We mirror DASD to 
our DR site. Occasionally an XRC action would delay an OS I/O operation, 
causing the I/O to be redriven. However, real storage acquired for the first 
I/O was not freed, causing a real storage leak that gradually reduced the 
available frame count to zero. One PTF fixed the problem. 

.
.
.
J.O.Skip Robinson
Southern California Edison Company
Electric Dragon Team Paddler 
SHARE MVS Program Co-Manager
626-302-7535 Office
323-715-0595 Mobile
[email protected]

-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf 
Of Beesley, Paul
Sent: Tuesday, March 24, 2015 6:56 AM
To: [email protected]
Subject: Re: Unscheduled automatic reIPL on z10

Thanks to all who shared tips and experiences both off- and on-list.
A PMR has been opened and I have changed AUTOIPL to take a standalone dump, 
which I have tested.
By the way for the sake of completeness, the command to trigger a SAD is V 
XCF,sysname,OFF,SADMP

Regards and thanks
Paul

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