Date: Sun, 5 Mar 1995 11:14:52 -0500 (EST) From: Peter Dufault <dufault@hda.com> To: hsu@cs.hut.fi (Heikki Suonsivu) Cc: hsu@cs.hut.fi, freebsd-current@freefall.cdrom.com Subject: Re: Wiring Message-ID: <199503051614.LAA02146@hda.com> In-Reply-To: <199503051450.AA06069@cardhu.cs.hut.fi> from "Heikki Suonsivu" at Mar 5, 95 04:50:48 pm
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Heikki Suonsivu writes: (...) > Something I would assume it should be: > > disk sd0 at scbus0 target 0 unit 0 > disk sd1 at scbus0 target 1 > disk sd2 at scbus0 target 2 > disk sd3 at scbus0 target 3 > disk sd4 at scbus0 target 4 > disk sd5 at scbus0 target 5 > disk sd6 at scbus0 target 6 > tape st0 at scbus0 target 4 > tape st1 at scbus0 target 5 > device cd0 at scbus0 target 6 > (...) > SunOS uses a kludge, target x lun y becomes sd(2*x+1). Not nice, but at > least it has got a fixed mapping. > (...) 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? 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. -- Peter Dufault Real Time Machine Control and Simulation HD Associates, Inc. Voice: 508 433 6936 dufault@hda.com Fax: 508 433 5267
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