In many/most?/all? of the HMC LPAR controls, you have three options: only change running system, only save changes to activation profile, or do both. The LPAR (Image) profile comes into play any time the LPAR is activated, which includes POR. Unless the profile has been updated one way or another, dynamic 'running system' changes will be lost on the next activation.
IPL itself with or without the LOAD profile does not cause LPAR activation unless the LPAR has been previously deactivated. That is, IPLing a 'not activated' LPAR entails first activation by Image profile followed by IPL with or without use of the LOAD profile. . . 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 [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Leonardo Vaz Sent: Friday, February 16, 2018 1:35 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: (External):Re: PR/SM LPAR Controls Change Running System In my understanding both pages are correct, you lose the changes after a POR, you also lose the changes if you activate the partition. When you IPL by Activate you use the activation profile settings. You can IPL with the Load command to not re-activate the LPAR and use the previous defined capacity. Regards, Leo -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Andrew Arentsen Sent: Friday, February 16, 2018 12:10 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: PR/SM LPAR Controls Change Running System Hi List, I have a question about what we recently experienced when dealing with Defined Capacity changes. Say I have a production LPAR with a defined capacity of 100 and a tech-only LPAR with 10. Management decides that we can afford an extra 2 MSU, temporarily. So I enter Change LPAR Controls and change the production LPAR's Defined Capacity to 102 and a tech-only LPAR to 8. At this point, I click the Change Running System button to apply the change. A few days later, the tech-only LPAR was re-IPL'd using a custom group with a load profile. The IPL was performed by selecting Activate. We notice at this point that the tech-only LPAR's Defined Capacity was set to 10. We promptly changed it back to 8. Then, to test this situation again, I started with a baseline of production=100 and tech-only=5. I entered Change LPAR Controls again and changed the tech-only to 8 and again clicked on Change Running System. This time, when the IPL was performed via an activate, the LPAR came up with a defined capacity of 8. I've found some conflicting documentation on the Google: http://www-01.ibm.com/support/docview.wss?uid=tss1wp102437&aid=1 This page says that Change Running System changes are lost after a POR http://www-01.ibm.com/support/docview.wss?uid=isg209611e17c3b8d419852573f700645d4d&aid=1 This page says that it's lost after a reactivation of a partition It seems that PR/SM selects the highest Defined Capacity between the Running System and what's saved in the Activation profile for the LPAR. Can anyone shed some light as to how PR/SM actually works? Andrew Arentsen Senior Mainframe Systems Engineer Phone: 800.242.7666 x1349 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
