Thought - and probably did this years ago - I will page it back in - come up with one page volume and necessary spool at IPL. Then have AUTOLOG1/2 bring up the other page volumes before the massive guest startup. Quasi dynamic. Just keep your spool slots intact! ha ha unless you like CLEAN start. It is not worth the bother but there it is, a thought. David
-------- Original Message -------- Subject: Re: z/VM page space From: David Boyes <dbo...@sinenomine.net> Date: Tue, June 14, 2011 12:03 pm To: LINUX-390@VM.MARIST.EDU On 6/14/11 10:54 AM, "Marcy Cortes" <marcy.d.cor...@wellsfargo.com> wrote: >The question is why do you need to know? Short version: to know which guests to recycle to clear an old paging volume without having to take a CP IPL just to get old pages off a paging volume. Problem is still going to be dealing with pages written during the first few seconds after an IPL by CP itself. I suspect that it would be possible to tweak the page device list in real storage to remove the volume in question, run the CP page list in real core and force a page in/page out sequence for pages on the volume in question, but There Lie Big Nasty Dragons. There's a lot of interlocking pieces and CP integrity is at stake, so it would not be simple code. Still, CP DRAIN cuu PAGE MIGRATE sounds like a requirement to me. Its probably going to be necessary to get the clustering stuff to behave well, although I suspect breaking one more thing in that rewrite is probably going to cause riots and much wailing in Endicott. ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/ ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
