09-085r1 Power Condition Transition modifications

Kevin_Marks at Dell.com Kevin_Marks at Dell.com
Wed Apr 29 18:50:57 PDT 2009

Formatted message: <a href="http://www.t10.org/cgi-bin/ac.pl?t=r&f=r0904296_f.htm">HTML-formatted message</a>

I will take a look at it, and see where in the proposal and SPC4 you
think it assumes a block device and START STOP UNIT. Are you talking
about LU Control? I looked thru rev 2 that I am working on, and did not
see the issue. Almost all the SSU command changes are in SBC3.
From: owner-t10 at t10.org [mailto:owner-t10 at t10.org] On Behalf Of Kevin D
Sent: Wednesday, April 29, 2009 6:23 PM
To: t10 at t10.org
Subject: 09-085r1 Power Condition Transition modifications
I have an issue with 09-085r1.	The suggested changes to SPC-4 assume
that every device that uses power conditions and the power condition
mode page support the START/STOP UNIT command and its controlling of
power conditions.  Since this is in SPC-4 this applies to all devices
including SSC (i.e., Tape) and SMC (i.e., library) devices and neither
of these devices support START/STOP UNIT - nor can they because the
opcode is LOAD/UNLOAD - whatever is proposed needs to make the
distinction between those devices.  I don't know if the solution is to
exclude SSC and SMC devices or to explicitly state that the statements
only apply to SBC devices or to have a list of behaviors depending on
device type. 
Kevin D. Butt
SCSI & Fibre Channel Architect, Tape Firmware
MS 6TYA, 9000 S. Rita Rd., Tucson, AZ 85744
Tel: 520-799-5280
Fax: 520-799-2723 (T/L:321)
Email address: kdbutt at us.ibm.com

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