Date: Tue, 20 Jan 2004 10:44:54 -0700 From: "Kenneth D. Merry" <ken@kdm.org> To: Mark Terribile <materribile@yahoo.com> Cc: scsi@freebsd.org Subject: Re: Does this document (also) describe FreeBSD SCSI? Message-ID: <20040120174454.GA13828@panzer.kdm.org> In-Reply-To: <20040120164830.39726.qmail@web21108.mail.yahoo.com> References: <20040120164830.39726.qmail@web21108.mail.yahoo.com>
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On Tue, Jan 20, 2004 at 08:48:30 -0800, Mark Terribile wrote: > Hi, > > This document: > > http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3GD-TET1_html/camosf2.html > > claims to describe the SCSI subsystem in ``Digital UNIX'' but it looks a lot > like > FreeBSD. Does anyone know if there is a genetic relationship, or how reliable > a > guide it is? FreeBSD and DEC UNIX/Tru64 have both implemented the ANSI CAM spec. Thus the reason that DEC's implementation looks a lot like the FreeBSD SCSI layer. (They're based on the same spec.) The spec is here: http://www.t10.org/ftp/t10/drafts/cam/cam-r12b.pdf So the DEC CAM paper may be somewhat applicable to FreeBSD, but certainly not 100% applicable. Ken -- Kenneth Merry ken@kdm.org
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