Sections of NSSes and DCSSes that have never been referenced by any user still reside only on the original SPOOL space they were saved to. For initial reads from SPOOL, NSS and DCSS pages are "blocked" in large (up t o half a meg, I believe) paging blocks, so if one page is touched, the whol e group comes in. Once that has happened for a set of pages, then the "active" copies of those pages will reside in storage, xstore, or on PAGE
space much like any other virtual storage page (that is, as long as any u ser has the DCSS or NSS loaded). One the last user has dropped access to the NSS or DCSS, it reverts back to the "initial read from SPOOL" state again . - Bill Holder z/VM Development, IBM On Wed, 7 May 2008 22:35:18 -0400, Stracka, James (GTS) <[EMAIL PROTECTED]> wrote: >Martha, > >Others have suggested labor intensive ways to find this. I know of no program to do it. Perhaps you are thinking of the SPOOL chain program. > >However, this got me to wondering about DCSSes or NSSes. What happens w hen a user or group of users request a DCSS or NSS and do not use all of it? Do unused portions of DCSSes and NSSes get paged out or just deleted as they can be reloaded if they are needed? Where I am going with the question i s, could that page on the PAGE belong to a portion of a DCSS or NSS that man y users may eventually need? > >By the way, a suggestion made to me many years ago when we could not fin d the owner of a dataset (yes, my other operating system days) on a 3330 we were converting to 3350 was to remove the volume and see who screams. Nobody screamed. That might work for a minidisk but certainly would make CP upset if you removed the page volume on a running system and CP eventuall y tried retrieve it. Do you feel lucky? > >I just realized you said "3 months". Apparently you did not IPL for Daylight Saving Time so waiting for Standard Time is not an option. > >Good luck, >Jim > >-----Original Message----- >From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] >Behalf Of Martha McConaghy >Sent: Wednesday, May 07, 2008 12:49 PM >To: IBMVM@LISTSERV.UARK.EDU >Subject: Owner of a page > > >I faintly recall that there is a way to find out who owns a page out on >disk PAGE space, but can't recall how. I've got a page allocation out >on an old disk that is set to be turned off. Its been drained for about >3 months, but there is 1 page allocated that never goes away. Something >that doesn't get recycled obviously owns it, but I have a lot of virtual >machines that never get recycled. It would help if I could figure out >which owns it and just recycle that one. > >Any bright ideas? > >Martha >-------------------------------------------------------- > >This message w/attachments (message) may be privileged, confidential or proprietary, and if you are not an intended recipient, please notify the sender, do not use or share it and delete it. Unless specifically indicat ed, this message is not an offer to sell or a solicitation of any investment products or other financial product or service, an official confirmation of any transaction, or an official statement of Merrill Lynch. Subject to applicable law, Merrill Lynch may monitor, review and retain e-communications (EC) traveling through its networks/systems. The laws of the country of each sender/recipient may impact the handling of EC, and E C may be archived, supervised and produced in countries other than the coun try in which you are located. This message cannot be guaranteed to be secure or error-free. This message is subject to terms available at the following link: http://www.ml.com/e-communications_terms/. By messaging with Merril l Lynch you consent to the foregoing. >-------------------------------------------------------- >======================== ========================= =======================
