To: t10@t10.org
Subject: SSC-3: Discussion related to Letter Ballot comment HPQ-70
From: Kevin D Butt <kdbutt@us.ibm.com>
Date: Thu, 19 Jun 2008 12:58:50 -0700
X-Message-Number: 8870
Formatted message: HTML-formatted message

HPQ-70: First paragraph in the section - ". . . enough space in the 
partition for the application client to write any buffered logical object 
in the application client buffer to the medium." - What is the application 
client buffer?	Is that different from the object buffer?  If so then a 
definition is needed.
4.2.5 Programmable early warning
When writing, the application client may need an indication that it is 
approaching early warning (see 4.2.4) while there is enough space in the 
partition for the application client to write any buffered logical objects 
in the application client buffer to medium.
Application clients that need this indication may set the PEWS field (see 
8.3.8) to a value that creates a PEWZ that allows sufficient recording 
space for the data that is in the application client buffer.
===>
An application client may need the capability to tune the system for user 
applications that reside inside the application client.  One of the 
parameters that may need tuned is how soon prior to receiving an early 
warning indication the user application needs to be notified to prepare 
the application client to optimally react to early warning.  This tuning 
may be accomplished by setting the PEWS field (see 8.3.8) to a value that 
creates a PEWZ.
Figure 10 shows an example of the PEWZ.
==========> How does this look as a draft proposal?
Thanks,
Kevin D. Butt
SCSI & Fibre Channel Architect, Tape Firmware
MS 6TYA, 9000 S. Rita Rd., Tucson, AZ 85744
Tel: 520-799-2869 / 520-799-5280
Fax: 520-799-2723 (T/L:321)
Email address: kdbutt@us.ibm.com
http://www-03.ibm.com/servers/storage/