Subject: Re: NetBSD master CVS tree commits
To: Justin T. Gibbs <email@example.com>
From: Jason Thorpe <firstname.lastname@example.org>
Date: 09/03/1996 12:44:56
On Tue, 03 Sep 1996 11:44:07 -0700
"Justin T. Gibbs" <email@example.com> wrote:
> You mean its set until we know that its a SCSI-2 device not that,
> "Its set (always) for the SCSI-2 devices 'just in case'", right?
After discussing it with Charles, and checking the spec again, we didn't
see any reason _not_ to allow it to be set on SCSI-2 devices. The spec
clearly states that it's allowed (albeit discouraged). Also, in every
SCSI-2 draft I've ever seen, the LUN is clearly marked in the CDB,
further indicating to me SCSI-2 devices don't mind if it's there.
The only mention of those bits being reserved is in the section that says
those bits may be reclaimed by SCSI-3.
If there's a compelling reason to _not_ set those bits in the case of a
SCSI-2 device, I'll change it. However, everthing thing I've seen
indicates that it's completely benign.
-- save the ancient forests - http://www.bayarea.net/~thorpej/forest/ --
Jason R. Thorpe firstname.lastname@example.org
NASA Ames Research Center Home: 408.866.1912
NAS: M/S 258-6 Work: 415.604.0935
Moffett Field, CA 94035 Pager: 415.428.6939