I don't think you can do it, reliably. TSM tries to try to fill each tape as full as it can, until it hits physical EOT. Two tapes, even if from the same manufacturer and the same batch, will inevitably be slightly different lengths. So, when you copy one full tape to another tape, there is a 50% chance that the output tape will be the shorter of the two, and it won't all fit. What's bad is that you might not even know it didn't all fit, until you have to rely on it for an emergency restore and it does not work.
Roger Deschner University of Illinois at Chicago [EMAIL PROTECTED] ======I have not lost my mind -- it is backed up on tape somewhere.===== On Mon, 9 Dec 2002, StorageGroupAdmin StorageGroupAdmin wrote: >Hello, > >Running TSM 5.1 on Solaris 8, using IBM 3590's in an ATL over a SAN (& SAN DATA >GATEWAYS) > >Does anyone know how to copy a TSM BACKUPSET series of tapes directly to another set >of tapes (1 at a time is fine) > >I already know the following: TSM has no way of doing this. >Solaris DD or TAR cannot do this as it requires EOT markers on each tape >IBM TCOPY also cannot do this as it also requires EOT markers on each tape (tcopy can >copy a backupset on a single tape) >MMUNIX software cannot see scsi tapes in an ATL over the SAN. > >I do not have the space to recover the data and make another copy. > >Appreciate any help, > >Thanks >Anthony Langford >Sydney Water > > > >----------------------------------------------------------- >Voluntary water restrictions now apply to residents in >Sydney, Blue Mountains and the Illawarra. >No sprinklers or watering systems between 8am and 8pm. >No hosing of paths, buildings or hard surfaces. >For more information visit www.sydneywater.com.au >----------------------------------------------------------- >This e-mail is solely for the use of the intended recipient >and may contain information which is confidential or >privileged. Unauthorised use of its contents is prohibited. >If you have received this e-mail in error, please notify >the sender immediately via e-mail and then delete the >original e-mail. >----------------------------------------------------------- >
