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тАО11-17-2000 11:54 AM
тАО11-17-2000 11:54 AM
fbackup
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тАО11-17-2000 03:10 PM
тАО11-17-2000 03:10 PM
Re: fbackup
Tape machines (try cybernetics) come with a copy mode for their daul models that may do what you need. I would contact them. They currently sell AIT but have done exabyte in the past.
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тАО11-17-2000 03:21 PM
тАО11-17-2000 03:21 PM
Re: fbackup
http://www.dutchworks.nl/htbin/hpsysadmin?h=3&dn=20027&q=copy%20tape%20fbackup&fh
In summary: fbackup creates archives on tape using a variable, rather than a fixed, record size. dd and similar utilities can't deal with this. Bill suggests using an ancient (circa 1986, judging by the man page), revered utility called 'copytape,' which will copy tape archives created using fbackup in spite of their variable record size.
I think you may find that the link to the copytape tarball that Bill mentions (found at Unix Guru Universe: http://www.ugu.com ) is broken. Try searching for 'copytape.tar.Z' or 'copytape.tar.gz' at http://ftpsearch.lycos.com . (As far as I can tell, the 'compressed' and 'gzipped' archives contain the exact same files.) They're out there somewhere.
I have successfully compiled copytape on a 10.20 system (nothin' to it), but I haven't attempting to duplicate any tapes yet. Judging by some of the other posts to hpux-admin (and Bill's recommendation), it should work fine for single-tape backup sets, but you may have problems duplicating multi-volume sets. Maybe Bill will pick up on this thread and clarify?
For future reference (in case anyone's interested), you can search the hpux-admin archives at the following URL:
http://www.dutchworks.nl/htbin/hpsysadmin
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тАО11-17-2000 03:31 PM
тАО11-17-2000 03:31 PM
Re: fbackup
I haven't actually done the experiment yet, but does anyone care to speculate on this possibility?
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тАО11-17-2000 03:36 PM
тАО11-17-2000 03:36 PM
Re: fbackup
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тАО11-19-2000 12:43 PM
тАО11-19-2000 12:43 PM
Re: fbackup
The dd program is called dd because it primarily is used for disk-to-disk copies (despite the man page's comments about tapes). dd might be convinced to read random record sizes and actually duplicate them on output..I haven't been successful.
As far as copying a multi-volume tape, each continuation volume is just another tape so copying the tape should be easy with copytape. But one precaution: Tape errors on the destination may be handled by erasing over the bad area and continuing on--which will make the destination tape smaller in total output size. So it is possible that the source may not fit on the destination.
Which brings us back to the frecover piped to fbackup solution. Since fbackup will accept stdin with -f -, then it should work, even for a multivolume copy.
Bill Hassell, sysadmin
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тАО07-20-2002 10:21 PM
тАО07-20-2002 10:21 PM
Re: fbackup
I've just had the same problem (i wanted to copy an fbackup tape made on a HP-UX 11 machine).
It turned out that copytape does the job.
regards
Paul