[8045] in linux-scsi channel archive
Re: Sony SDT-9000
daemon@ATHENA.MIT.EDU (Jason Thomas)
Mon Feb 7 18:04:54 2000
Date: Tue, 8 Feb 2000 09:44:00 +1100
From: Jason Thomas <jason@topic.com.au>
To: Michael Meissner <meissner@cygnus.com>
Cc: linux-scsi@vger.rutgers.edu
Message-ID: <20000208094400.D1980@topic.com.au>
Reply-To: jason@topic.com.au
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In-Reply-To: <20000207114721.A9013@tiktok.cygnus.com>; from meissner@cygnus.com on Mon, Feb 07, 2000 at 11:47:21AM -0500
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Can a dirty drive cause the machine to lockup. Or will it only cause
corrupted reads and write to the tape device. we forgot all about the head
cleaning tape that came with the drive.
Michael Meissner [meissner@cygnus.com] wrote:
> On Mon, Feb 07, 2000 at 10:21:16AM +1100, Jason Thomas wrote:
> > We hava a Sony SDT-9000 that locks up the machine. It has been tried in two
> > different machines and does the same thing, We also tried a Seagate 24GB
> > drive in those same machines and it works flawlessly.
> >
> > The machine locks up to the point where SysRq still works but can't perform
> > any IO function so Emergency sync does not work but Dumping Memory stats
> > still works.
> >
> > The Tape Drive has been sent back to the supplier under warranty and tested,
> > they claim that It is okay.
> >
> > The Scsi controllers are different in both machines, various kernel versions
> > have been tried.
> >
> > When we first bought the tape drive it worked fine for about three months
> > before this happened.
> >
> > Any ideas..
>
> You might want to check out how you terminate the drive and whether you have a
> laser printer near the drive. I had similar problems with my HP DAT24i, and
> I'm on my 3rd drive now. The first drive failed after 3 months with medium
> sense errors, and in talking to HP they said that laser printers emit charged
> particles that can get into the mechanism, and also that the drive wanted
> active termination on an ultra controller (the guy who built my system had
> enabled the termination on the CD-R). For the 2nd tape drive, I put the tape
> on a non-ultra controller and moved the printer away from the computer (though
> in the last 2 months, I had to have the printer in the same room due to
> construction going on in my office). Now I have the drive with a separate
> active terminator, and the laser printer in a separate room. We'll see in 3
> months if the failure occurs again.
>
> --
> Michael Meissner, Red Hat, Inc.
> PMB 198, 174 Littleton Road #3, Westford, Massachusetts 01886
> Work: meissner@redhat.com phone: 978-486-9304 fax: 978-692-4482
> Non-work: meissner@spectacle-pond.org
--
Jason Thomas Phone: +61 2 6257 7111
System Administrator - UID 0 Fax: +61 2 6257 7311
tSA Consulting Group Pty. Ltd. Mobile: 0418 29 66 81
1 Hall Street Lyneham ACT 2602 http://www.topic.com.au/
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