> -----Original Message----- > From: The IBM z/VM Operating System > [mailto:[EMAIL PROTECTED] On Behalf Of Mark Wheeler > Sent: Friday, June 06, 2008 8:39 AM > To: IBMVM@LISTSERV.UARK.EDU > Subject: Re: Backup: Twinning Tapes to Remote Tape Unit > > Can't do that, unless you can guarantee that the tapes at the > remote site > are longer than the local copy (which would be unlikely). > When the backup > runs, writing to a given pair of tapes ends when the first > one hits EOT. > > You would also need to a complete copy of the tapes, labels and all, > because the tapes are chained together with user labels. > > If you couldn't do that, then the copy utility would have > have to be smart > enough to generate the user label records according to > VM:Backup specs. > Since the VMBACKUP catalog wouldn't know about these tapes, > any restores > would have to be done using VMBRITS or VMBSAR. > > Mark L. Wheeler
Curiousity question, because I don't know VM:Backup, is there a way to tell VM:Backup to only use n% of a tape? Our z/OS backup utility can be told to do this. If this is possible, then you could fill a tape up to, say, 80% and be fairly confident that the second tape would be long enough to hold that data. -- John McKown Senior Systems Programmer HealthMarkets Keeping the Promise of Affordable Coverage Administrative Services Group Information Technology The information contained in this e-mail message may be privileged and/or confidential. It is for intended addressee(s) only. If you are not the intended recipient, you are hereby notified that any disclosure, reproduction, distribution or other use of this communication is strictly prohibited and could, in certain circumstances, be a criminal offense. If you have received this e-mail in error, please notify the sender by reply and delete this message without copying or disclosing it.
