Question regarding K28.6
Marian Lakov
Marian_Lakov at us.xyratex.com
Thu Oct 11 13:58:21 PDT 2007
* From the T10 Reflector (t10 at t10.org), posted by:
* "Marian Lakov" <Marian_Lakov at us.xyratex.com>
*
Hi All,
I need a clarification regarding K28.6 control character. According to SAS
(2r10) it will indicate a SATA_ERROR if used in SATA link and has no meaning
in SAS:
Table 75 - Control character usage
First character Usage in SAS physical links Usage in SATA physical links
of a dword
K28.3 Primitives used only inside All primitives except ALIGN
STP connections
K28.5 ALIGN and most primitives ALIGN
defined in this standard
K28.6 Not used SATA_ERROR
The corresponding part of the ATA-8 AST does not define K28.6 as a valid
control character:
Table 21 - Valid control characters
Name Description
K28.3 Occurs only at byte 0 of all primitives except for
the ALIGN primitive
K28.5 Occurs only at byte 0 of the ALIGN primitive
Is K28.6 a valid control character for SATA and which part of the ATA
standard describes its usage?
Thanks,
Marian
________________________
Marian Lakov
Systems Engineer
Xyratex
1804 Centre Point Circle, Suite #112
Naperville, IL 60563
Office: 630-364-7600
Fax: 630-364-7601
marian_lakov at us.xyratex.com
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