Yes, I meant that you still need to format those allocated as PAGE (or any non PERM type).. I'm used to seeing full volumes so said 1-END.. Personally - I prefer to format/allocate in one step (single cpfmtxa format/allocate)
Scott Rohling On Tue, Aug 9, 2011 at 12:26 PM, <gclo...@br.ibm.com> wrote: > Hi. > No need, 0-END (or 1-END) is not mandatory. > You can use only pieces of dasd for each type, but all referenced in alloc > map, not PERM type, MUST be formatted. If not, you get the paging errors. > To make a one-pack VM, have the VMRES mdisks, some cylinders for page and > some for spool. The minimum needed to get CMS running. All in the same pack. > > > PS. And is possible (not practical) to start with an empty SPOOL: > > 1. Restore VMRES, > 2. format page/spool, > 3. IPL VM, > 4. logon MAINT (IPL 190), > 5. create the segments and all the other SDFs (or restore them from one > tape). > 6. Followed by a new IPL. > > I saw people working this way ( I help them) in the past. > Personally, nowaday this way looks more an academic POC than a valid DR > exercise... > ______________________________________________ > Clovis > > > From: > Scott Rohling <scott.rohl...@gmail.com> > To: IBMVM@LISTSERV.UARK.EDU Date: 09/08/2011 14:19 Subject: Re: z/vm page > packs at DR Sent by: The IBM z/VM Operating System < > IBMVM@LISTSERV.UARK.EDU> > ------------------------------ > > > > Don't you still need to format 1-END? In my experience, you can end up > with paging errors if the dasd isn't initialized/formatted. Haven't tried > just cylinder 0 though, so I could be wrong.. > > Scott Rohling > > On Tue, Aug 9, 2011 at 6:06 AM, Gentry, Steve <* > steve.gen...@westernsouthernlife.com*<steve.gen...@westernsouthernlife.com>> > wrote: > > We backup cyl 0 (zero) of the page packs just to avoid having to run ICKDSF > to put a label on the packs. We then, of course, restore that cyl 0 at DR. > > Steve > > > > *From:* The IBM z/VM Operating System > [mailto:*IBMVM@LISTSERV.UARK.EDU*<IBMVM@LISTSERV.UARK.EDU>] > *On Behalf Of *Crabtree, Anne D* > Sent:* Tuesday, August 09, 2011 8:03 AM > > * > To:* *IBMVM@LISTSERV.UARK.EDU* <IBMVM@LISTSERV.UARK.EDU> > *Subject:* z/vm page packs at DR > > > > I currently back up all my z/vm packs (res,page,spool) via an adrdssu job > on z/os each Sunday. At the DR site, I run an adrdssu restore job for these > packs. > > This method works fine, however, I’m wondering if backing up the page packs > is necessary? I was thinking that maybe I could backup only 1 page pack so > that I can get z/vm up and then just init the remaining packs after coming > up. Since the page packs are listed as cpvols in system config, would z/vm > even come up if it couldn’t find all of them? Seems like a waste of time to > back them up… > > > > At DR site, we bring up a z/os “rescue” system in order to run restore jobs > for both z/os and z/vm volumes. Afterwards, our z/vm and z/os systems run > as second level guests. Maybe I need a “rescue” z/vm system as well? > > > > Just wondering what everyone else does. > > > > > > > > Anne D. Crabtree > > System Programmer > > WV Office of Technology Data Center > > 1900 Kanawha Blvd East > > Charleston, WV 25305 > > *(304)558-5914 ext 58292* <%28304%29558-5914%20ext%2058292> > > *(304)558-1441* <%28304%29558-1441> fax > > > >
