Date: Mon, 06 Mar 1995 17:03:31 -0800 From: "Justin T. Gibbs" <gibbs@estienne.cs.berkeley.edu> To: Heikki Suonsivu <hsu@cs.hut.fi> Cc: Peter Dufault <dufault@hda.com>, freebsd-current@freefall.cdrom.com Subject: Re: Wiring Message-ID: <199503070103.RAA14610@estienne.cs.berkeley.edu> In-Reply-To: Your message of "Tue, 07 Mar 1995 00:48:29 %2B0200." <199503062248.AAA11458@shadows.cs.hut.fi>
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>
> Am I right that your concern is that the default behavior of a
> FreeBSD kernel is potentially wondering SCSI disks, and that providing
> the capability of wiring down the disks is only a partial solution,
> since the majority of the great unwashed won't wire them down and will
> be likely to be hurt by this?
>
>Great majority probably have 1 or 2 disks, so this isn't a big risk for
>them, but it is also irrelevant to them whether the disks are wired or
>mapped (most people probably have root disk as id 0 anyway). For large
>systems it is both administrative trouble and filesystem/database
>corruption risk.
>
> If we built a kernel using your table above my disks would move around.
>
> Also, my tapes will show up as st2 and st3
> since they aren't at those targets.
>
> I can't see how to change this without having a big upgrade headache
> and incompatability with existing kernels.
>
>It will continue to cause headache as long as it stays there, and the later
>the reverting to fixed ids is pushed, the more difficult it will become.
The solution to this and many other configuration problems is to allow
the user to reconfigure their kernel during installation. Wiring down
SCSI devices would just be one option.
>
>-
>Heikki Suonsivu, T{ysikuu 10 C 83/02210 Espoo/FINLAND,
>hsu@cs.hut.fi home +358-0-8031121 work -4513377 fax -4555276 riippu SN
--
Justin T. Gibbs
==============================================
TCS Instructional Group - Programmer/Analyst 1
Cory | Po | Danube | Volga | Parker | Torus
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