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From: Eckhard Jokisch <e.jokisch@u-code.de>
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To: Mike Dresser <mdresser@windsormachine.com>, e.jokisch@u-code.de,
        linux-kernel@vger.kernel.org
Subject: Re: 2.4 test10 error reading from HP colorado 7/14 Gb tape
Date: Wed, 29 Nov 2000 20:44:43 +0000
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Mike Dresser wrote:
> I  reported this a few weeks ago or so, it seems that HP 7/14's are not exactly
> standard.  First is the proprietory tape size.  Second is that the drive doesn't
> support locking the tape in, but reports it as possible.  At least, that's what i
> gather from Jens's posting.
> 

I'm very much interested in what is the cause for this error.
> > > # tar -tvf  /dev/ht0
> > > ide-tape: ht0: I/O error, pc = 8, key = 5, asc = 2c, ascq = 0
> > >
In my case the driver tries some error-recovery three or four times before it
gives up.
On of the problems is - that these errors occure after having written several
GB to the tape - and that takes some hours. It also happend that with a tar
-cvM the first tape was ok but the second was unreadeable.

> > I experience the same with OnStream DI30 - but these errors occure in 2.2.17 as
> > well. In my oppinion they show up in fewer cases with 2.4-test10.
> > The error is not quite"stable" because it occures on different tape positions
> > (filenames) when I retension the tape three aor four times befor writing to it.
> >
> > I checked the tapes on a Windows machine and they seem to be o.k..
> >
> > Eckhard Jokisch
> > -
-
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