Proposal about A Note

keiji_katata at post.pioneer.co.jp keiji_katata at post.pioneer.co.jp
Fri Oct 10 01:51:08 PDT 2008


* From the T10 Reflector (t10 at t10.org), posted by:
* keiji_katata at post.pioneer.co.jp
*
Hello all,
This is a proposal about "A Note".
There is a paragraph that talk about host retry on page 708 in Fuji7 rev.
1.10.
-------
Not Ready error may be reported to READ command. For example while writing is
occurring, if READ (10) command or READ (12) command cannot be terminated
immediately due to insufficient buffer capacity, the logical unit may
terminate
the READ command with CHECK CONDITION status, 2/04/07 LOGICAL UNIT NOT READY,
OPERATION IN PROGRESS or 2/04/08 LOGICAL UNIT NOT READY, LONG WRITE IN
PROGRESS.
The host shall issue the same READ command again. After logical unit becomes
ready due to sufficient buffer capacity for the READ command, the READ
command
shall be performed normally.
-------
I would like to propose to add this note below this paragraph.
-------
Note: When a logical unit cannot perform read operation due to data writing
on a
Random writable medium, the logical unit may use 3/02/00 NO SEEK COMPLETE
instead of 2/04/07 LOGICAL UNIT NOT READY, OPERATION IN PROGRESS or 2/04/08
LOGICAL UNIT NOT READY, LONG WRITE IN PROGRESS. It is recommended that host
issue the same READ command again several times. The 3/02/00 NO SEEK COMPLETE
may be used for the actual seek failure. Therefore the number of the retry
may
be limited.
-------
I would like to ask all members following questions.
1. Do you agree to add some note in Fuji7 Rev. 1.10?
2. Do you have any comment to this proposal sentence?
Please send your opinion by November 3.
I would like to ask Bill to share time to discuss this in/after the next MMC.
Best regards,
Keiji Katata
PIONEER CORP.
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