Accredited Standards Committee*
InterNational Committee for Information Technology Standards (INCITS)
Doc. No.: T10/05-417r0
Date: November 7, 2005
Reply to: John Lohmeyer
To: T10 Membership
From: Ralph Weber and John Lohmeyer
Subject: SAS Protocol WG -- November 7, 2005
Austin, TX
Agenda
1. Opening Remarks
2. Approval of Agenda
3. Attendance and Membership
4. Old Business
4.1 SAS-2 protocol for changing driver amplitude (03-285r2) [Evans]
4.2 SAS-2 More counters (04-172r2) [Elliott]
4.3 SAS-2 Zoning (05-144r9) [Symons, Laio and Grieff]
4.4 SAS-2 Add device name to IDENTIFY address frame (05-309r1) [Elliott]
4.5 SAS-2 STP connection time limits (05-306r1) [Elliott]
4.6 SAS-2 More Phy Test Patterns (04-222r5) [Elliott]
5. New Business
5.1 SAS-2, SAM-4, SPC-4, NOTIFY (POWER FAILURE EXPECTED) Fixes (05-370r0)
[Penokie]
5.2 SAS 1.1 Expander Issues-092805 (05-373r2) [Stoops]
5.3 SAS-2 revision 0 minor corrections (05-412r0) [Elliott]
5.4 SAS-2 Multiplexing (05-381r0) [Elliott]
5.5 SAS-2 Wide SSP target port simultaneous connection rules (05-322r0)
[Elliott]
5.6 SAS-2 Zone Check and Route Table Clarification (05-416r0) [D'Avignon]
5.7 Analysis of DFE Error Bursts on Primitive Sequences (05-422r0) [Gorshe]
6. Review of Recommendations
7. Meeting Schedule
8. Adjournment
Results of Meeting
1. Opening Remarks
John Lohmeyer called the meeting to order at 9:00 a.m. Monday, November 7,
2005. He thanked Kevin Marks of Dell for hosting the meeting. As usual, the
people present introduced themselves.
2. Approval of Agenda
The draft agenda was approved with no changes.
No agenda changes were made during the course of the meeting.
3. Attendance and Membership
Attendance at working group meetings does not count toward minimum attendance
requirements for T10 membership. Working group meetings are open to any person
or organization directly and materially affected by T10's scope of work. The
following people attended the meeting:
Name S Organization
---------------------------------- -- ------------------------------------
Ms. Pat Thaler P Agilent Technologies
Mr. Ron Roberts A Broadcom Corp.
Mr. Kevin Marks P Dell, Inc.
Mr. Kenneth Hirata A Emulex
Mr. Robert H. Nixon P Emulex
Mr. Ralph O. Weber P ENDL Texas
Mr. Neil Wanamaker V Finisar
Mr. Rob Elliott P Hewlett Packard Co.
Mr. Steven Fairchild V Hewlett Packard Co.
Mr. Chris Martin V Hewlett Packard Co.
Mr. Dan Colegrove P Hitachi Global Storage Tech.
Mr. George O. Penokie P IBM / Tivoli Systems
Mrs. Vicky Duerk V Intel
Mr. Martin Massucci V Intel
Mr. Pak Seto V Intel Corp.
Mr. Robert Sheffield P Intel Corp.
Mr. Dennis Moore AV KnowledgeTek, Inc.
Mr. Brad Besmer V LSI Logic Corp.
Mr. Brian Day V LSI Logic Corp.
Mr. Steve Johnson V LSI Logic Corp.
Mr. John Lohmeyer P LSI Logic Corp.
Mr. Avraham Shimor P M-Systems
Mr. Greg Elkins V Marvell Semiconductor
Mr. David Geddes AV Marvell Semiconductor, Inc.
Mr. Martin Czekalski A Maxtor Corp.
Mr. Mark Evans P Maxtor Corp.
Mr. Tim Symons P PMC-Sierra
Dr. Steve Gorshe V PMC-Sierra, Inc.
Mr. Don Carothers V QLogic Corp.
Mr. Gerald Houlder P Seagate Technology
Mr. Doug Loree V Toshiba America
Mr. David Allen A Vitesse Semiconductor
Mr. Ed D'Avignon V Vitesse Semiconductor
Mr. Gregory Tabor P Vitesse Semiconductor
Mr. Jeff Williams P Xiotech Corp.
Mr. Bob Hansen V Xyratex
36 People Present
Status Key: P - Principal
A,A# - Alternate
AV - Advisory Member
L - Liaison
V - Visitor
4. Old Business
4.1 SAS-2 protocol for changing driver amplitude (03-285r2) [Evans]
Mark Evans requested that discussion of this topic be deferred to the next
meeting.
4.2 SAS-2 More counters (04-172r2) [Elliott]
Rob Elliott presented a proposal to add counters to the SAS Protocol-Specific
Log Page (04-172r2). The latest revision included an SMP management interface
and Brian Day identified areas where the interface needed enhancements or
clarifications. The newly added Broadcast based on counters reaching their
maximum values contained unclear definitions and the group requested that it
be clarified.
Rob agreed to prepare a new revision for consideration at the next meeting.
4.3 SAS-2 Zoning (05-144r9) [Symons, Laio and Grieff]
Tim Symons presented the revised SAS-2 Zoning proposal (05-144r9). The group
discussed several enhancements to the proposal. Several clarity issues were
raised regarding the Configure Zone Permission Request description. Additional
concerns revolved around the length of the Zone Broadcast Address frame and
the group agreed to make the frame smaller, perhaps as small as two Dwords.
Tim agreed to prepare a new revision for consideration at the next meeting.
4.4 SAS-2 Add device name to IDENTIFY address frame (05-309r1) [Elliott]
Rob Elliott presented a proposal to add device name information to the SAS-2
IDENTIFY address frame (05-309r1). The group discussed IEEE format names and
updating the usage tutorials on the IEEE web site. Concerns were raised
regarding the UML representation of SAS Addresses and SAS Device Names.
Rob agreed to revise the proposal based on the discussion and present the
revision at the next meeting.
4.5 SAS-2 STP connection time limits (05-306r1) [Elliott]
Rob Elliott presented a proposal to add time limits for SAS-to-SATA
connections (05-306r1). Coordinating the proposal with ATA-8 required some
changes that Rob noted with the help of Mark Evans. Concerns were raised about
the automatic clearing of Affiliations. Rob agreed to prepare a modified
revision of the proposal.
Rob Elliott moved that 05-306r2 (r1 as modified) be recommended for inclusion
in SAS-2. Steve Johnson seconded the motion. The motion was approved 14:0:4.
4.6 SAS-2 More Phy Test Patterns (04-222r5) [Elliott]
Rob Elliott presented a proposal to add more Phy test patterns (04-222r5).
George Penokie complained that illegal K characters were still allowed in the
proposal. Rob led efforts to revise the text to eliminate such concerns which
were ultimately successful.
Rob Elliott moved that 04-222r6 (r5 as modified) be recommended for inclusion
in SAS-2. Kevin Marks seconded the motion. The motion passed 9:3:6.
5. New Business
5.1 SAS-2, SAM-4, SPC-4, NOTIFY (POWER FAILURE EXPECTED) Fixes (05-370r0)
[Penokie]
George Penokie presented a proposal to address issues raised during the
incorporation of 05-370r0). Concerns were raised about the effects
of the changes on the lifetimes of task management functions and George agreed
to revise the proposal.
George Penokie moved that 05-370r1 (r1 as revised) be recommended for
inclusion in SAS-2, SAM-4, and SPC-4. Mark Evans seconded the motion. The
motion passed 12:1:2.
5.2 SAS 1.1 Expander Issues-092805 (05-373r2) [Stoops]
Because Tim Hoglund was unable to attend, the group felt that this topic could
not be resolved, so closing the identified issues was deferred to the next
meeting.
5.3 SAS-2 revision 0 minor corrections (05-412r0) [Elliott]
Rob Elliott presented three typographical problems in substantive SAS-2 text
(05-412r0 be recommended for incorporation
in SAS-2. Bob Sheffield seconded the motion. In the absence of any objections,
the motion passed unanimously.
5.4 SAS-2 Multiplexing (05-381r0) [Elliott]
Due to the late hour, Rob Elliott agreed to defer discussion of this topic to
the next meeting.
5.5 SAS-2 Wide SSP target port simultaneous connection rules (05-322r0)
[Elliott]
Rob Elliott presented a proposal to add a mode page to manage target usage of
simultaneous connections (05-322r0). The target memory requirements needed to
support the mode page raised substantial concerns. The only way to address the
concerns was to remove the mode page from the proposal and Rob agreed to
revise it accordingly for consideration at the next meeting.
5.6 SAS-2 Zone Check and Route Table Clarification (05-416r0) [D'Avignon]
Ed D'Avignon presented a discussion of where checks are performed in a Zoning
Service Delivery Subsystem (05-416r0).
The group agreed to remove this item from future agendas.
5.7 Analysis of DFE Error Bursts on Primitive Sequences (05-422r0) [Gorshe]
Noting that 6 Gbs support may require receivers to implement Decision Feedback
Equalization in Phys, Steve Gorshe presented an analysis of DFE usage on key
SAS Primitive Sequences (05-422r0).
The group suggested a `majority voting' solution to issues regarding the
detection of the key SAS Primitive Sequences raised by Steve's presentation.
Steve agreed to prepare a new, detailed proposal based on the suggestion.
The group agreed to remove this item from future agendas.
6. Review of Recommendations
The following document was recommended for inclusion in SAS-2 during this
meeting:
For inclusion in SAS-2:
04-222r6 (More Phy Test Patterns) [Elliott]
05-306r2 (STP connection time limits) [Elliott]
05-412r0 (Revision 0 minor corrections) [Elliott]
For inclusion in SAS-2, SAM-4, and SPC-4:
05-370r1 (NOTIFY (POWER FAILURE EXPECTED) Fixes) [Penokie]
7. Meeting Schedule
A SAS Protocol Working Group meeting is scheduled for:
Monday, January 9, 2006 commencing at 9:00 a.m. in Scottsdale, AZ at the
Embassy Suites Hotel Phoenix - Scottsdale (Reservations:
http://www.b-there.com/arm/t10phx2006) hosted by Intel.
Teleconference calls will be announced on the T10 reflector as needed.
8. Adjournment
The meeting was adjourned at 6:55 p.m. on Monday November 7, 2005.