More SBC-2 items to obsolete

Lawrence Chen LawrenceChen at
Fri Aug 27 18:55:16 PDT 2004

* From the T10 Reflector (t10 at, posted by:
* "Lawrence Chen" <LawrenceChen at>
Hi Jim and Bob,

obsolescing commands are nice but creating an up to date
scsi disk profile would be even better :)

Best Regards,

Lawrence Chen

Principal Member of Technical Staff (PMTS)
MaXXan Systems, Inc.

(408) 382-6427 (V)
(832) 382-6599 (F)
(408) 204-2460 (C)

LawrenceChen at

-----Original Message-----
From: Robert Snively [mailto:rsnively at Brocade.COM]
Sent: Friday, August 27, 2004 3:51 PM
To: Jim.Coomes at; t10 at
Cc: Robert Snively
Subject: More SBC-2 items to obsolete

* From the T10 Reflector (t10 at, posted by:
* "Robert Snively" <rsnively at Brocade.COM>

In the same vein,  Brocade posted either a question or
a statement with respect to making the following SBC-2
items obsolete.  These should also be considered at the
September meeting.

	Question on making READ LONG obsolete.
	Question on making WRITE LONG obsolete.

		As the drives become more sophisticated, the
		meaningfulness of the data becomes more and more
		difficult to interpret.  I know they will be 
		obsolete soon, but is the time already?

	In FORMAT command:

		Make bytes from index format address descriptor
		Make physical sector format address descriptor obsolete.

	Invent a new condition of deprecated (~ "should not") in
	for future obsolete state and apply it to:

		READ (6)
		WRITE (6)

	Make READ DEFECT DATA command obsolete.

	Make translate address input/output diagnostic pages obsolete.

Some of these hypothesize that modern drives use proprietary mechanisms
for determining and executing defect management and that there are
no application clients that use these somewhat dated tools for
drive ECC and establishing defect lists.  If this is not true,
READ/WRITE (6) is the only remaining question.

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