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- From: kinsell@hpfcso.FC.HP.COM (Dave Kinsell)
- Date: Thu, 23 Jul 1992 18:40:33 GMT
- Subject: Re: moving tar file on DAT (4mm) tape between HP and SGI???
- Message-ID: <7371166@hpfcso.FC.HP.COM>
- Organization: Hewlett-Packard, Fort Collins, CO, USA
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!sdd.hp.com!hpscdc!cupnews0.cup.hp.com!hppad.waterloo.hp.com!hppad!hpfcso!kinsell
- Newsgroups: comp.sys.hp
- References: <fish.711910541@news2.gsfc.nasa.gov>
- Lines: 18
-
- In comp.sys.hp, fish@daacdev1.stx.com writes:
-
- > hi, i'm trying to write a tar archive to a 4mm DAT tape on
- > an HP 720 (hpux 8.05) and then read it on an SGI 440s (irix
- > 4.0.1) and it sez: checksum error, giving up...
- >
- > i just used plain old tar cvf to create it on the HP and then
- > checked it with tar tvf and all was fine then came over to
- > the SGI and it won't read it (even dd won't read anything off
- > of it) - any ideas?
-
- 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.
-
- Dave Kinsell
-