It's temping to be parsimonious and reduce storage allocation to a bare minimum, but it can be a losing game. Regardless of how little storage you specify in an LPAR profile, the hardware itself will adjust the 'effective allocation' according to the CPU model. That is, the amount of storage reserved to an LPAR will never be less than the h/w minimum. So if you specify a fraction of the hardware increment, you will effectively lose any remaining storage in that range. It cannot be used by any LPAR.
So you might as well as specify any storage remaining in the increment. It will cost you nothing. . . J.O.Skip Robinson Southern California Edison Company Electric Dragon Team Paddler SHARE MVS Program Co-Manager 323-715-0595 Mobile 626-543-6132 Office ⇐=== NEW robin...@sce.com -----Original Message----- From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of Jousma, David Sent: Monday, December 9, 2019 8:04 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: (External):Re: A minimum of 8 GB of real memory is required to IPL I'm pretty sure I've heard it mentioned that Bill Gates said "Who could ever need more than 640K of RAM?" Haha, how times have changed. _____________________________________________________________________________________________________ Dave Jousma AVP | Manager, Systems Engineering Fifth Third Bank | 1830 East Paris Ave, SE | MD RSCB2H | Grand Rapids, MI 49546 616.653.8429 | fax: 616.653.2717 -----Original Message----- From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of R.S. Sent: Monday, December 9, 2019 10:47 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: A minimum of 8 GB of real memory is required to IPL **CAUTION EXTERNAL EMAIL** **DO NOT open attachments or click on links from unknown senders or unexpected emails** W dniu 2019-12-09 o 15:56, Burgess, Otto A. pisze: > Good to know, thanks > > Perhaps IBM is more conservative on the recommendations than they need > to be Well, not so long ago we discussed whether 1GB is really good choice for sandbox z/OS system. The other options were 512MB and .75GB. Later we increased 1GB to 2GB. Nowadays I have 16GB ...in my PC, which is old and my new PC waiting for use have 32GB. I didn't order anything special, just regular PC. -- Radoslaw Skorupka Lodz, Poland ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
