Power Condition mode page code

ROWEBER at ACM.ORG ROWEBER at ACM.ORG
Thu May 11 09:27:28 PDT 1995


X3T10/95-222r0

To:   SCSI Reflector
From: Ralph Weber (SPC technical editor)
Subj: Power Condition mode page code
Date: 10 May 1995

The X3T10 Working Group has determined that the Power Condition mode page
(defined in approved document X3T9.2/91-014r6) should be applied to all
device types.  Power management has equal importance to all device types,
not just disks, as originally envisioned.

However, the Power Condition mode page code (0Dh) is the same as the code
used by the CD-ROM mode page.  Successful use of the Power Condition mode
page by all device types requires assignment of a currently unused mode
page code.  At the request of the Working Group, I have assigned mode page
code 1Ah to the Power Condition mode page (as used by all device types).

The X3T10 working group recommends usage of the 1Ah mode page code for all
device type implementations of the Power Condition mode page, including
direct access devices.  The 0Dh mode page code will remain reserved for the
Power Condition mode page in disk devices.  However, mode page code 1Ah is
recommended instead.  In all cases, the Power Condition mode page shall be
implemented as described in approved document X3T9.2/91-014r6.

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Please reply to: ROWeber at ACM.org
                                        Ralph O. Weber
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