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From: Andrew.Michael@brunel.ac.uk (Andrew J Michael)
Newsgroups: comp.sys.sun
Subject: Re: Verification of backups.
Keywords: Software
Message-ID: <1990Oct7.234916.8834@rice.edu>
Date: 7 Oct 90 21:30:00 GMT
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Organization: Sun-Spots
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X-Sun-Spots-Digest: Volume 9, Issue 320, message 13
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In article <1990Sep20.204529.2184@rice.edu>, bob@morningstar.com (Bob Sutterfield) writes:
> GNU Tar has a verify option (-W).  The Info section comments that
> "Verification requires that the archive be on a back-space-able medium.
> This means pipes, some cartridge tape drives, and some other devices
> cannot be verified."

Yes, but if you make a second pass using the -d option to report differences
between the tape and the original you can use any device, including 
cartridge drives.  I use this quite a lot ....

Regards

Andy Michael (eesrajm@cc.brunel.ac.uk)