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	Thu, 6 Nov 1997 09:42:49 +1030 (CST)
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Date: Thu, 6 Nov 1997 09:42:49 +1030
From: Greg Lehey <grog@lemis.com>
To: Chris Shenton <chris@absinthe.i3inc.com>
Cc: questions@FreeBSD.ORG
Subject: Re: "mt eject" nonexistent? (FBSD-2.2.5)
References: <199711042359.SAA08160@i4got.lakewood.com> <199711051347.IAA25802@absinthe.i3inc.com>
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In-Reply-To: <199711051347.IAA25802@absinthe.i3inc.com>; from Chris Shenton on Wed, Nov 05, 1997 at 08:47:13AM -0500
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On Wed, Nov 05, 1997 at 08:47:13AM -0500, Chris Shenton wrote:
> I wrote about 2.2.5-STABLE appearing to not have an ability to
> physically eject/unload a tape from a drive with the "mt" command.
>
> Bunches of people told me to RTFM, "mt offline", etc. Guess I should
> have said I did both of those, then clarified with what kind of drive
> I was using. I did get some confirmation that I'm not totally insane:
>
> On Tue, 04 Nov 1997 17:55:03 Jeff Wheat <jeff@tad.cetlink.net> wrote:
>
> jeff> mt -f <device> offline does not work with my 4 tape
> jeff> changer.. been going over it all day now.
>
> Yup, I've got the Archive Python 4xDDS2 changer that has been in the
> surplus/auction houses recently for as little as $150.
>
>     (aha0:6:0): "ARCHIVE Python 28849-XXX 4.CM" type 1 removable SCSI 2
>     (aha0:6:1): "ARCHIVE Python 28849-XXX 4.CM" type 8 removable SCSI 2
>
> I guess it doesn't support physical eject.

I have had one of these drives for nearly a year, and so far it's been
the most reliable DDS drive I ever had.  This is exactly the probe
string from my machine.  It supports physical eject.

> I finally got "chio" to work by replacing my NCR810 SCSI card with an
> Adaptec 1540, so now I can say
>
> 	chio move drive 0 slot 3
>
> or whatever to remove the tape to a slot. (The NCR caused SCSI
> errors which others tell me is probably a bug in the driver).

This might be the real reason.  Have you tried 'mt offline' since
changing the host adapter?

Greg