One the best sysprogs I know attempted to free some storage SQA / CSA due to a creeping storage condition. There was a shory pause followed by some expletives and an immediate IPL of the system. I wouldn't attempt it on any system I cared about unless it was to attempt to avoid an impending IPL.
Rob Schramm On Sat, Oct 31, 2015, 10:47 AM Martin Packer <martin_pac...@uk.ibm.com> wrote: > Right. And coming to this late... > > SMF 78-2 has all the numbers you'd usually need on this. My standard > reporting generates useful stuff on this - but generally I don't bore my > customers with it. If it's exciting, however, ... :-) > > Quite often I see SQA oversized leaving unusable 24- or 31-bit SQA. (Also > oversized CSA, but that's a different matter.) > > Cheers, Martin > > Martin Packer, > zChampion, Principal Systems Investigator, > Worldwide Cloud & Systems Performance, IBM > > +44-7802-245-584 > > email: martin_pac...@uk.ibm.com > > Twitter / Facebook IDs: MartinPacker > Blog: > https://www.ibm.com/developerworks/mydeveloperworks/blogs/MartinPacker > > > > From: Peter Relson <rel...@us.ibm.com> > To: IBM-MAIN@LISTSERV.UA.EDU > Date: 31/10/2015 13:56 > Subject: Re: Releasing Orphan Storage without IPL > Sent by: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> > > > > >Remember that CSA and ECSA can overflow to SQA and ESQA, so you have > >more air in you (E)CSA than the 2% and 3% and this might help you > >survive until the next scheduled IPL. > > Actually, it's the other way around, as I think of it. > > CSA can be converted into SQA. If a request to obtain storage from SQA > cannot find it from the defined SQA, the system may convert CSA to satisfy > > the request. > > It will not do the reverse. > > This is why some customers will underconfigure SQA and overconfigure CSA. > > Peter Relson > z/OS Core Technology Design > > ---------------------------------------------------------------------- > 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 > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
