VERY LATE ISSUE FOR SAS 1.1

Elliott, Robert (Server Storage) Elliott at hp.com
Mon Sep 19 14:19:34 PDT 2005


* From the T10 Reflector (t10 at t10.org), posted by:
* "Elliott, Robert (Server Storage)" <Elliott at hp.com>
*
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Thanks.  Both those sentences were added in response to the same
comment, but "one" and "zero" should not have been swapped in the first
sentence (both inside the i.e. and in the main text).  I'll fix that in
revision 10.  (I've also run a spell-check on the whole document)
=20
--=20
Rob Elliott, elliott at hp.com=20
Hewlett-Packard Industry Standard Server Storage Advanced Technology=20
https://ecardfile.com/id/RobElliott
<https://ecardfile.com/id/RobElliott> =20

=20


  _____ =20

From: owner-t10 at t10.org [mailto:owner-t10 at t10.org] On Behalf Of Bill
Martin
Sent: Friday, September 16, 2005 1:56 AM
To: Elliott, Robert (Server Storage); gop at us.ibm.com; t10 at t10.org
Subject: VERY LATE ISSUE FOR SAS 1.1
Importance: High



Rob & George:

=20

I hope that I am mistaken; however, I think that there may be an error
in the latest revision of SAS 1.1.  Page 455 just below table 197, =
there
is the following statement:

=20

If a SAS phy reset sequence occurs (see 6.7.4)(i.e., one or more of the
ATTACHED SSP INITIATOR PORT bit, ATTACHED STP INITIATOR PORT bit,
ATTACHED SMP INITIATOR PORT bit, ATTACHED SSP TARGET PORT bit, ATTACHED
STP TARGET PORT bit, and/or ATTACHED SMP TARGET PORT bit is set to
zero), then the ATTACHED SATA PORT SELECTOR bit, the ATTACHED SATA
DEVICE bit, and the ATTACHED SATA HOST bit shall each be set to one.

=20

I believe that this should set the last three referenced bits to ZERO
not one.  I compare this to the following statement from the third
paragraph on page 456 which discusses what is done when a SATA phy =
reset
sequence occurs and the bits associated with any type of SCSI port
(e.g., ATTACHED SSP INITIATOR PORT) are set to zero:

=20

If a SATA phy reset sequence occurs (see 6.7.3)(i.e., the ATTACHED SATA
PORT SELECTOR bit is set to one, the ATTACHED SATA DEVICE bit is set to
one, or the ATTACHED SATA HOST bit is set to one), then the ATTACHED =
SSP
INITIATOR PORT bit, ATTACHED STP INITIATOR PORT bit, ATTACHED SMP
INITIATOR PORT bit, ATTACHED SSP TARGET PORT bit, ATTACHED STP TARGET
PORT bit, and ATTACHED SMP TARGET PORT bit shall each be set to zero.

=20

=20

Bill Martin
Sr. Principal Engineer
Standards and Interoperability
Sierra Logic, Inc.
916 772-3658

916 765-6875 (Cell)
bill_martin at sierralogic.com

=20


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<BODY lang=3DEN-US vLink=3Dpurple link=3Dblue>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D784251621-19092005><FONT =
face=3DArial=20
color=3D#0000ff size=3D2>Thanks.&nbsp; Both those sentences were added =
in response=20
to&nbsp;the same&nbsp;comment, but "one" and "zero" should not have =
been swapped=20
in the first sentence (both inside the i.e. and in the main =
text).&nbsp; I'll=20
fix that in revision 10.&nbsp; (I've also run a spell-check on the =
whole=20
document)</FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D784251621-19092005><FONT =
face=3DArial=20
color=3D#0000ff size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV dir=3Dltr align=3Dleft><SPAN =
class=3D784251621-19092005></SPAN><SPAN=20
lang=3Den-us><FONT face=3DArial size=3D2>--</FONT></SPAN> <BR><SPAN =
lang=3Den-us><FONT=20
face=3DArial size=3D2>Rob Elliott, elliott at hp.com</FONT></SPAN> =
<BR><SPAN=20
lang=3Den-us><FONT face=3DArial size=3D2>Hewlett-Packard Industry =
Standard Server=20
Storage Advanced Technology</FONT></SPAN> <BR><SPAN lang=3Den-us><FONT =
face=3DArial=20
size=3D2><A=20
href=3D"https://ecardfile.com/id/RobElliott">https://ecardfile.com/id/Ro=
bElliott</FONT></SPAN>=20
</DIV><BR>
<DIV>&nbsp;</DIV><BR>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px =
solid; MARGIN-RIGHT: 0px">
  <DIV class=3DOutlookMessageHeader lang=3Den-us dir=3Dltr =
align=3Dleft>
  <HR tabIndex=3D-1>
  <FONT face=3DTahoma size=3D2><B>From:</B> owner-t10 at t10.org=20
  [mailto:owner-t10 at t10.org] <B>On Behalf Of </B>Bill =
Martin<BR><B>Sent:</B>=20
  Friday, September 16, 2005 1:56 AM<BR><B>To:</B> Elliott, Robert =
(Server=20
  Storage); gop at us.ibm.com; t10 at t10.org<BR><B>Subject:</B> VERY LATE =
ISSUE FOR=20
  SAS 1.1<BR><B>Importance:</B> High<BR></FONT><BR></DIV>
  <DIV></DIV>
  <DIV class=3DSection1>
  <P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">Rob &amp;=20
  George:<o:p></o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial"><o:p>&nbsp;</o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">I hope that I am =
mistaken;=20
  however, I think that there may be an error in the latest revision of =
SAS=20
  1.1.&nbsp; Page 455 just below table 197, there is the following=20
  statement:<o:p></o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial"><o:p>&nbsp;</o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">If a SAS phy reset =
sequence occurs=20
  (see 6.7.4)(i.e., one or more of the </SPAN></FONT><FONT face=3DArial =

  size=3D1><SPAN style=3D"FONT-SIZE: 8pt; FONT-FAMILY: Arial">ATTACHED =
SSP INITIATOR=20
  PORT </SPAN></FONT><FONT face=3DArial size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">bit, =
</SPAN></FONT><FONT=20
  face=3DArial size=3D1><SPAN style=3D"FONT-SIZE: 8pt; FONT-FAMILY: =
Arial">ATTACHED=20
  STP INITIATOR PORT </SPAN></FONT><FONT face=3DArial size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">bit, =
</SPAN></FONT><FONT=20
  face=3DArial size=3D1><SPAN style=3D"FONT-SIZE: 8pt; FONT-FAMILY: =
Arial">ATTACHED=20
  SMP INITIATOR PORT </SPAN></FONT><FONT face=3DArial size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">bit, =
</SPAN></FONT><FONT=20
  face=3DArial size=3D1><SPAN style=3D"FONT-SIZE: 8pt; FONT-FAMILY: =
Arial">ATTACHED=20
  SSP TARGET PORT </SPAN></FONT><FONT face=3DArial size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">bit, =
</SPAN></FONT><FONT=20
  face=3DArial size=3D1><SPAN style=3D"FONT-SIZE: 8pt; FONT-FAMILY: =
Arial">ATTACHED=20
  STP TARGET PORT </SPAN></FONT><FONT face=3DArial size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">bit, and/or =
</SPAN></FONT><FONT=20
  face=3DArial size=3D1><SPAN style=3D"FONT-SIZE: 8pt; FONT-FAMILY: =
Arial">ATTACHED=20
  SMP TARGET PORT </SPAN></FONT><FONT face=3DArial size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">bit is set to zero), =
then the=20
  </SPAN></FONT><FONT face=3DArial size=3D1><SPAN=20
  style=3D"FONT-SIZE: 8pt; FONT-FAMILY: Arial">ATTACHED SATA PORT =
SELECTOR=20
  </SPAN></FONT><FONT face=3DArial size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">bit, the =
</SPAN></FONT><FONT=20
  face=3DArial size=3D1><SPAN style=3D"FONT-SIZE: 8pt; FONT-FAMILY: =
Arial">ATTACHED=20
  SATA DEVICE </SPAN></FONT><FONT face=3DArial size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">bit, and the =
</SPAN></FONT><FONT=20
  face=3DArial size=3D1><SPAN style=3D"FONT-SIZE: 8pt; FONT-FAMILY: =
Arial">ATTACHED=20
  SATA HOST </SPAN></FONT><FONT face=3DArial size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">bit shall each be set =
to=20
  one.<o:p></o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial"><o:p>&nbsp;</o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">I believe that this =
should set the=20
  last three referenced bits to ZERO not one.&nbsp; I compare this to =
the=20
  following statement from the third paragraph on page 456 which =
discusses what=20
  is done when a SATA phy reset sequence occurs and the bits associated =
with any=20
  type of SCSI port (e.g., ATTACHED SSP INITIATOR PORT) are set to=20
  zero:<o:p></o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial"><o:p>&nbsp;</o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">If a SATA phy reset =
sequence=20
  occurs (see 6.7.3)(i.e., the </SPAN></FONT><FONT face=3DArial =
size=3D1><SPAN=20
  style=3D"FONT-SIZE: 8pt; FONT-FAMILY: Arial">ATTACHED SATA PORT =
SELECTOR=20
  </SPAN></FONT><FONT face=3DArial size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">bit is set to one, the=20
  </SPAN></FONT><FONT face=3DArial size=3D1><SPAN=20
  style=3D"FONT-SIZE: 8pt; FONT-FAMILY: Arial">ATTACHED SATA DEVICE=20
  </SPAN></FONT><FONT face=3DArial size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">bit is set to one, or =
the=20
  </SPAN></FONT><FONT face=3DArial size=3D1><SPAN=20
  style=3D"FONT-SIZE: 8pt; FONT-FAMILY: Arial">ATTACHED SATA HOST=20
  </SPAN></FONT><FONT face=3DArial size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">bit is set to one), =
then the=20
  </SPAN></FONT><FONT face=3DArial size=3D1><SPAN=20
  style=3D"FONT-SIZE: 8pt; FONT-FAMILY: Arial">ATTACHED SSP INITIATOR =
PORT=20
  </SPAN></FONT><FONT face=3DArial size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">bit, =
</SPAN></FONT><FONT=20
  face=3DArial size=3D1><SPAN style=3D"FONT-SIZE: 8pt; FONT-FAMILY: =
Arial">ATTACHED=20
  STP INITIATOR PORT </SPAN></FONT><FONT face=3DArial size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">bit, =
</SPAN></FONT><FONT=20
  face=3DArial size=3D1><SPAN style=3D"FONT-SIZE: 8pt; FONT-FAMILY: =
Arial">ATTACHED=20
  SMP INITIATOR PORT </SPAN></FONT><FONT face=3DArial size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">bit, =
</SPAN></FONT><FONT=20
  face=3DArial size=3D1><SPAN style=3D"FONT-SIZE: 8pt; FONT-FAMILY: =
Arial">ATTACHED=20
  SSP TARGET PORT </SPAN></FONT><FONT face=3DArial size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">bit, =
</SPAN></FONT><FONT=20
  face=3DArial size=3D1><SPAN style=3D"FONT-SIZE: 8pt; FONT-FAMILY: =
Arial">ATTACHED=20
  STP TARGET PORT </SPAN></FONT><FONT face=3DArial size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">bit, and =
</SPAN></FONT><FONT=20
  face=3DArial size=3D1><SPAN style=3D"FONT-SIZE: 8pt; FONT-FAMILY: =
Arial">ATTACHED=20
  SMP TARGET PORT </SPAN></FONT><FONT face=3DArial size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">bit shall each be set =
to=20
  zero.<o:p></o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial"><o:p>&nbsp;</o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial"><o:p>&nbsp;</o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><st1:PersonName w:st=3D"on"><FONT face=3DArial =
size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">Bill=20
  Martin</SPAN></FONT></st1:PersonName><BR><FONT face=3DArial =
size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">Sr. Principal=20
  Engineer<BR>Standards and Interoperability<BR>Sierra Logic, =
Inc.<BR>916=20
  772-3658</SPAN></FONT><o:p></o:p></P>
  <P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">916 765-6875=20
  (Cell)<BR>bill_martin at sierralogic.com</SPAN></FONT><FONT face=3DArial =

  size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial"><o:p></o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D3><SPAN=20
  style=3D"FONT-SIZE: =
12pt"><o:p>&nbsp;</o:p></SPAN></FONT></P></DIV></BLOCKQUOTE></BODY></HTM=
L>

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