Date: Tue, 16 Jan 1996 05:06:35 +1100 From: Bruce Evans <bde@zeta.org.au> To: j@uriah.heep.sax.de, lists@argus.flash.net Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: m-o drives Message-ID: <199601151806.FAA03986@godzilla.zeta.org.au>
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>> i thought this might help someone out... is there any way this could be
>> added to the distribution /etc/disktab ?
>I would do it, but:
>> mta3230|mo230|IBM MTA-3230 230 Meg 3.5inch Magneto-Optical:\
>> :ty=removeable:dt=SCSI:rm#3600:\
>> :se#512:nt#64:ns#32:nc#216:sc#2048:su#444384:\
> ^^^^^^^^^^^^^^^^^^
>> :pa#444384:oa#0:ba#4096:fa#0:ta=4.2BSD:\
>> :pc#444384:oc#0:
>This rather seems like a translated geometry from your SCSI adapter in
>the DOS/BIOS environment, not the actual geometry of the disk. For a
>disk like an MO, using the UFS layout optimizations will still make
>sense (unlike for other disks), so using the physical geometry might
>be better here.
There's no need for disktab entries for drives that report their geometry
"correctly". `disklabel /dev/rod0' gives the geometry reported by the
^^^^^^ whole disk
drive provided the drive doesn't have a DOSpartition table. The output
isn't quite suitable for input to `disklabel -w -r -R sd0' - you have to
^ no /dev/r
(whole compatibility slice)
change the interleave and rpm and the FreeBSD partitions.
Bruce
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