Not that you need the page packs to be able to IPL z/VM at the DR site. But, as you use adrdssu on z/OS to restore the z/VM packs, you could start some jobs on z/OS to run ICKDSF CPVOL FORMAT ... RANGE(0,xxx) TYPE(PAGE, 1,xxx). I guess that should work as ICKDSF is supposed to be the same on z/OS, z/VM and z/VSE.
2011/8/9 Mike Walter <mike.wal...@aonhewitt.com> > NSSes (e.g. CMS, CMSFILES, CMSPIPES, and may more) can easily be backed up > using SPXTAPE to write them to tape (preferably every night).**** > > Thus the restore at DR is pretty simple (as long as you are very careful to > send a copy of the tapes off-site, along with a hardcopy listing of which > NSS tape volsers were created on which date).**** > > ** ** > > Back when we conducted offsite DR tests, we did just that. The SPOOL > volumes at D.R. were created by an EXEC that would autolog a string of > userids that had just been added by another EXEC to the DR floor system’s > directory. Those autologs permitted concurrent formatting of many DASD, > Each autologed ID (conveniently named ‘-volser-‘ where the ‘volser’ was the > volume serial number of the volume to be formatted), would format its > specific SPOOL, PAGE, or TDISK volume (naturally, just cylinder zero of > TDISK vols). A follow-up step instructed how to restore the NSSes from the > SPXTAPE backup.**** > > ** ** > > A cleanup exec at the end of the D.R. test would carefully delete the ID’s > we had added to the floor system’s directory, along with any EXECs and > control files that we had added.**** > > ** ** > > Mike Walter**** > > Aon Corporation**** > > The opinions expressed herein are mine alone, not my employer's.**** > > ** ** > > *From:* The IBM z/VM Operating System [mailto:IBMVM@LISTSERV.UARK.EDU] *On > Behalf Of *Hans Rempel > *Sent:* Tuesday, August 09, 2011 9:36 AM > > *To:* IBMVM@LISTSERV.UARK.EDU > *Subject:* Re: z/vm page packs at DR**** > > ** ** > > Hi Anne: I have never been in a real DR situation but enough DRs were we > did have a time limit to complete. Today we have high capacity/fast tapes so > I would follow Clovis suggestion. Start tape restores and put your feet up > or ready yourself for the VM IPL once VM base system is restored. **** > > ** ** > > One thing you need to consider are the Saved Segments which are in SPOOL > space. When the system is shipped most if not all are on the spool section > of VM sysres. If any of these get re-saved (via service) they may end up on > any SPOOL volume. Therefore make sure all your spool volumes are available > before IPL –or be prepared to resave missing segments which is not a good > idea in a pressure situation. VM will use SPOOL for paging if not enough > PAGE space is available. PAGE is not as critical as SPOOL and can be added > later sometime shortly after the IPL (before IPLing of your production > systems – since running out of SPOOL space is very bad) using some automated > CMS service machine/exec. You need to consider the number of page volumes > versus backup time/tape usage. If you have 4 or 5 page volumes I would > backup. If you have 20 pages volumes I would consider an exec to reformat > them at the DR site.**** > > ** ** > > Hans**** > > *From:* The IBM z/VM Operating System [mailto:IBMVM@LISTSERV.UARK.EDU] *On > Behalf Of *Crabtree, Anne D > *Sent:* August-09-11 9:34 AM > *To:* IBMVM@LISTSERV.UARK.EDU > *Subject:* Re: z/vm page packs at DR**** > > ** ** > > Good point.. Maybe I’ll continue to back them up but for the test, I could > IPL as soon as I have one restored (if needed).**** > > ** ** > > Anne D. Crabtree**** > > System Programmer**** > > WV Office of Technology Data Center**** > > 1900 Kanawha Blvd East**** > > Charleston, WV 25305**** > > (304)558-5914 ext 58292**** > > (304)558-1441 fax**** > > ** ** > > *From:* The IBM z/VM Operating System [mailto:IBMVM@LISTSERV.UARK.EDU] *On > Behalf Of *gclo...@br.ibm.com > *Sent:* Tuesday, August 09, 2011 9:28 AM > *To:* IBMVM@LISTSERV.UARK.EDU > *Subject:* Re: z/vm page packs at DR**** > > ** ** > > Anne: > I worked with Disaster Recovery for about 10 years. > Some observations: "Real" DR are different than "Test" DR: the major factor > is Time. On a real disaster you don't have time to think, to plan, to > execute... And have a lot of persons making "pressure"... > So, the tip is: use the maximum of automation possible. > If you have a MVS at the DR site, explore it. > From my experience, restore page volumes from tape is faster than format > them. You can run several restore Jobs in parallel. > To be faster, you can start with a one Page volume and one spool volume, > (according to Rick's suggestion: a small spool volume with only the SDF) > After the VM IPL, you can add page/spool volumes on fly. > Working with tapes, one VM can be live in less than 10 minutes, and you > will got time to do the adjusts latter. > Good luck, > ______________________________________________ > Clovis **** > > From: **** > > Rich Smrcina <r...@velocitysoftware.com> **** > > To: **** > > IBMVM@LISTSERV.UARK.EDU **** > > Date: **** > > 09/08/2011 09:13 **** > > Subject: **** > > Re: z/vm page packs at DR **** > > Sent by: **** > > The IBM z/VM Operating System <IBMVM@LISTSERV.UARK.EDU>**** > > ** ** > ------------------------------ > > > > > For your initial IPL at DR, you won't need your PAGE packs at all... yes, > the IPL will > complain. As long as AUTOLOG1/2 isn't kicking off lots of other machines at > DR time, > you'll be just fine. Then an exec can format the page volumes... re-ipl and > all is good. > You will need spool space, so you might as well copy it (or keep a small > spool area > available only with the NSS files, JUST for DR). > > On 08/09/2011 07:03 AM, Crabtree, Anne D wrote: > > > > 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 > > > > (304)558-1441 fax > > > > > -- > Rich Smrcina > Velocity Software, Inc. > http://www.velocitysoftware.com > > Catch the WAVV! http://www.wavv.org > WAVV 2012 - April 13-17, 2012 Covington, KY**** > -- Kris Buelens, IBM Belgium, VM customer support
