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- From: franks@hpuamsa.neth.hp.com (Frank Slootweg CRC)
- Newsgroups: comp.sys.hp
- Subject: Re: moving tar file on DAT (4mm) tape between HP and SGI???
- Message-ID: <28510299@hpuamsa.neth.hp.com>
- Date: 27 Jul 92 12:00:26 GMT
- References: <fish.711910541@news2.gsfc.nasa.gov>
- Organization: Hewlett-Packard, The Netherlands
- Lines: 18
-
- olson@anchor.esd.sgi.com (Dave Olson) writes:
-
- > In <7371166@hpfcso.FC.HP.COM> kinsell@hpfcso.FC.HP.COM (Dave Kinsell) writes:
- [deleted]
- > | I'll bet you're not using an HP dat drive. Tar tvf sends out a
- > | write 0 filemarks command, conventionally used by drivers to flush
- > | buffers. Some drives write 0 filemarks, then write an EOD mark.
- > | This clobbers all your data. Try skipping the tvf pass, or write
- > | protect the cartridge first.
- >
- > I strongly doubt this, since he said he could read the tape on
- > HP after creating it, and very few recent drives are this braindead.
- > (Our driver also uses a write 0 fm cmd, and I've never heard of
- > a drive that dies with it.)
-
- Apparently some Exabyte drives suffer from this. Whether they are
- recent I don't know. See "Exabyte tape drives on Series 700 ?" in this
- group for "details".
-