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Date: Thu, 25 Oct 2001 23:59:35 +0200
From: Pavel Machek <pavel@suse.cz>
To: Rob Turk <r.turk@chello.nl>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [RFC] New Driver Model for 2.5
Message-ID: <20011025235935.B10358@elf.ucw.cz>
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Hi!

> > The act of "suspend" should basically be: shut off the SCSI controller,
> > screw all devices, reset the bus on resume.
> >
> 
> Doing so will create havoc on sequential devices, such as tape drives. If
> your system simply suspends, then all is well. Any data that isn't flushed
> yet is buffered inside the tapedrive. But when the system resumes and resets
> the SCSI bus, it will cause all data in the tape drive to be lost, and for
> most tape systems it will also re-position them at LBOT. Any running
> tar/dump/whatever tape process would not survive such a suspend-resume
> cycle.

Then there's something wrong with st.

Imagine EMI comes and SCSI gets reset. That should not mean tar
failing, right? So you have st broken in first place.
								Pavel
-- 
STOP THE WAR! Someone killed innocent Americans. That does not give
U.S. right to kill people in Afganistan.


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