Date: Sun, 24 May 1998 20:18:55 +0400 (MSD) From: Dmitry Morozovsky <marck@rinet.ru> To: Karl Pielorz <kpielorz@tdx.co.uk> Cc: freebsd-hardware@FreeBSD.ORG Subject: Re: dumping really big filesystems to Travan-4 streamer Message-ID: <Pine.BSF.3.96.980524201528.24236K-100000@woozle.rinet.ru> In-Reply-To: <35683536.FA1837DF@tdx.co.uk>
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On Sun, 24 May 1998, Karl Pielorz wrote:
> > 0. FreeBSD 2.2.6-R, ufs with 6G of used space, Travan-4 by Seagate (4G
> > native size) SCSI tape, hardware compression on. Central thing: file system
> > used size is more than 1 tape.
> > dumping with command
> > > dump -0ua -b 32 -f /dev/nrst0
> >
> > leads to error message at the end of the first tape:
> >
> > DUMP: 57.24% done, finished in 1:40
> > DUMP: write error 3999584 blocks into volume 1
> > DUMP: Do you want to restart?: ("yes" or "no")
> >
> > Then, answering "no" leads to abort entire dump; answer "yes" leads to
> > remount tape and rewrite backup set from the very beginning, then to the
> > same error message.
> >
> > Any suggestions?
>
> It sounds like it's not seeing the end of the tape - I've only got a
> workaround for this (I've had similar problems in the past) - in the end I
> had to turn compression off on the device, and tell dump the actual media
> size... I'd also like to know a better 'fix' for this ;-)
Well, at least this MAY be useful; however, it's not in my plans to
turn compression off forever; so, do you (or someone else?) know tape mode
or SCSI command to turn compression off and on?
Sincerely,
D.Marck
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*** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck@rinet.ru ***
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