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Date:      Wed, 22 Mar 1995 07:39:50 -0600 (CST)
From:      Peter da Silva <peter@bonkers.taronga.com>
To:        steve2@genesis.tiac.net (Steve Gerakines)
Cc:        freebsd-hackers@FreeBSD.org
Subject:   Re: Problems with 2940 and 950210snap
Message-ID:  <199503221339.HAA13328@bonkers.taronga.com>
In-Reply-To: <199503220015.AAA06755@genesis.tiac.net> from "Steve Gerakines" at Mar 22, 95 00:15:44 am

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> One concern I have is regarding tape length.  It
> looks like dump wants to calculate the tape length in advance to avoid
> reaching end of media.  QIC-40/80 tape drives have a variable number
> of blocks, depending upon how many have been marked bad, so how would
> I get a decent length?

You have to estimate.

Streaming tape drives have variable size, too, depending on how much they
stream. This is pretty much a standard problem in tape drives in general,
apart from the old 9-tracks where you had good random access.

> Is it a problem for dump to just fall off the
> end of the tape?

NO more than on any other tape device.



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