A "gotcha" with z/OS DFDSS is that you cannot use the stand alone DFDSS
to restore CPVOL initialized dasd. In a D/R situation, you have to have
z/OS restored enough to be able to run DFDSS under it to bring back the
VM system. This may be what Doug was meant when he referred to the
"restore considerations".
Jim
Doug Shupe wrote:
Daniel,
You can get a valid/usable backup the z/VSE guest dasd with DDR -ONLY IF-
the z/VSE guest is shutdown while performing the backup.
You can use z/OS DFDSS to backup the z/VM and z/VSE dasd but (IMHO) it is
not a wise solution because of the restore considerations. With enough
practice you could make it work. Problem is the z/VSE guest would never work
correctly unless it were shutdown during the backup.
You can backup the running z/VM system with DDR (minus the page and spool
volumes - format the page and spool volumes, cold start the spool after
recovery). You would have to re-save CMS and other DCSS or use SPXTAPE to
save the information in the spool.
Since you have a z/VM system, this would be a good time to try using z/VM
under z/VM to validate your recovery process. If you forgot something just
scrape the 2nd level system and start over. (kind of like using Changeman to
maintain Changeman).
Would be glad to discuss with you offline.
Best Regards,
Doug Shupe
----- Original Message -----
From: "Daniel Allen" <[EMAIL PROTECTED]>
To: <IBMVM@LISTSERV.UARK.EDU>
Sent: Thursday, December 28, 2006 12:48 PM
Subject: Backup of z/VM and z/VSE
I have been given an assignment to backup our z/VM and z/VSE systems.
We also run z/OS. I know about DDR. Can I backup/restore both z/VM and =
z/VSE using DDR ? Can z/OS backup/restore z/VM ?
--
Jim Bohnsack
Cornell University
(607) 255-1760
[EMAIL PROTECTED]
