From owner-freebsd-scsi  Thu Jan  2 05:48:57 1997
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Date: Fri, 3 Jan 1997 00:42:43 +1100
From: Bruce Evans <bde@zeta.org.au>
Message-Id: <199701021342.AAA06032@godzilla.zeta.org.au>
To: core@freebsd.org, freebsd-scsi@freebsd.org, j@uriah.heep.sax.de
Subject: Re: Iomega SCSI Zip Drive
Sender: owner-freebsd-scsi@freebsd.org
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>> `od' is an odd name for a removable scsi disk driver.
>
>Yes, but we can already consider it ``historical practice'' by now. :)
>
>Basically, as it stands now, it's just that: a removable disk driver,
>with an ioctl interface e.g. to eject a disk.

So it should have been part of sd all along.  Treating disks non-uniformly
causes unnecessary problems.  E.g., booting from "od0" is not supported.

Bruce