For I/O Configuration changes that might require a POR, check the "HCD User's Guide" and/or "HCD Planning" and it may take generating an IODF for it to tell you that a POR is needed.
As a person who has worked on machines from the 360/40 to a z114 (current), the reasons for a REQUIRED POR are becoming fewer and fewer. POR's could be categorized into; required (some I/O configuration changes) and un-intentional (in my shop's incident, mislabeled power cables when shifting to a new PDU). Al Nims Systems Admin/Programmer III UF Information Technology 720 Bld. 3rd Floor, #9 P.O. Box 112050 Gainesville, FL. 32611 (e) ajn...@ufl.edu (p) (352) 273-1298 -----Original Message----- From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of John McKown Sent: Thursday, January 17, 2019 9:06 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: The WHY of the POR On Thu, Jan 17, 2019 at 8:01 AM R.S. <r.skoru...@bremultibank.com.pl> wrote: > Personally I can't remember when I *had* to perform POR. > Yes, sometimes OSA or Crypto card need to be offlined/onlined which > also can be done vie POR, but this is not a requirement, since can be > done without it (even without IPL). > > -- > Radoslaw Skorupka > Lodz, Poland > > We don't have any sort of external times. So our TOD clock drifts around. If it gets too far away, we look at doing a POR so that we can set it. -- People who frustrate us will be around for as long as we need them. Maranatha! <>< John McKown ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
