She's doing both. 1st level minidisk for 2nd level guest defined from real cyl 1 to 3338.
2nd level guest uses virtual cylinder 1 to 3337 as PAGE. Virtual cylinde r 0 not used as PAGE space. Brian Nielsen On Mon, 11 Sep 2006 15:11:23 -0500, Mike Walter <[EMAIL PROTECTED]> wrote: >Or, she is following a long-standing practice to not allocate paging on >cylinder zero. >In ancient times, there were problems (perhaps lost in the mists of time ) >with VM using cylinder 0 on a real DASD. I vaguely remember problems >related to allocation bit map when paging in cyl 0. > >I still reserve cylinder 0 on every DASD as PERM space and specifically do >not allocate any MDISKs, CP area, etc. thereon. >One cylinder per disk is really inexpensive compared to a (very unlikely , >but 100% avoidable) system outage. > >Wearing both belts and suspenders in this case, > >Mike Walter >Hewitt Associates >Any opinions expressed herein are mine alone and do not necessarily >represent the opinions or policies of Hewitt Associates. > > > > >"Brian Nielsen" <[EMAIL PROTECTED]> > >Sent by: "The IBM z/VM Operating System" <IBMVM@LISTSERV.UARK.EDU> >09/11/2006 02:34 PM >Please respond to >"The IBM z/VM Operating System" <IBMVM@LISTSERV.UARK.EDU> > > > >To >IBMVM@LISTSERV.UARK.EDU >cc > >Subject >Re: z/VM 5.1 Paging > > > > > > >On Mon, 11 Sep 2006 18:07:22 +0200, Rob van der Heij ><[EMAIL PROTECTED]> wrote: > >>BTW did someone steal a cylinder from you? ;-) > >Her second level guest is using a minidisk that doesn't include real >cylinder zero. > >Brian Nielsen > > > > > >The information contained in this e-mail and any accompanying documents >may contain information that is confidential or otherwise protected >from disclosure. If you are not the intended recipient of this message, >or if this message has been addressed to you in error, please >immediately alert the sender by reply e-mail and then delete this messag e, >including any attachments. Any dissemination, distribution or other use of >the contents of this message by anyone other than the intended recipient >is strictly prohibited. >======================== ========================= ========================
