Accredited Standards Committee*
InterNational Committee for Information Technology Standards (INCITS)
Doc. No.: T10/06-318r0
Date: July 13, 2006
Reply to: John Lohmeyer
To: T10 Membership
From: Ralph Weber and John Lohmeyer
Subject: SCSI Commands, Architecture, & Protocol Working Group Meeting --
July 12, 2006
Colorado Springs, CO
Agenda
1. Opening Remarks
2. Approval of Agenda
3. Attendance and Membership
4. SCSI Architecture Model Topics
4.1 Making linked commands obsolete (no document) [Evans]
4.2 SAM-4, et al.: making linked commands obsolete (06-259r1) [Evans]
4.3 SAM-4 SPC-4 et al Multiple service delivery subsystem editorial
tweaks (06-323r0) [Elliott]
4.4 SAM-4 Response Fence for protocol services (06-341r0) [Elliott]
5. Command Set Topics
5.1 SCSI Primary Commands Proposals
5.1.1 SPC-4: Log Command Corrections (05-232r1) [Penokie]
5.1.2 SPC-4: Self Describing Command Timeouts (05-284r1) [Butt]
5.1.3 SPC-4 Wrapping and saturating counter definitions (06-175r1)
[Elliott]
5.1.4 SPC-4 Peripheral device informational identifier (06-221r1) [Elliott]
5.1.5 SPC-4 REQUEST SENSE parameter data clarifications (06-264r1)
[Elliott]
5.1.6 SPC-4 Fix persistence of SET DEVICE IDENTIFIER (06-278r0) [Entzel]
5.1.7 SPC-4 SBC-3 REQUEST SENSE and Stopped power condition (06-274r0)
[Elliott]
5.1.8 SPC-4 WRITE BUFFER clarifications (06-282r0) [Elliott]
5.1.9 SPC-4 Persistent Reservations correction (06-298r0) [Weber]
5.1.10 SPC-4 Statistics logging for FUA and FUA_NV (06-320r0) [Elliott]
5.1.11 SPC-4 Statistics and Performance log pages command cleanup (06-321r0)
[Elliott]
5.1.12 SPC-4: New ASC/ASCQ for SAT queue cleared condition (06-325r0)
[Overby]
5.1.13 Statistics Group Number inconsistencies in SPC-4, SSC-3, and MMC-5
(06-337r0) [Weber]
5.2 SCSI Block Commands Proposals
5.2.1 SBC-3 Physical blocks (06-034r4) [Elliott]
5.3 SCSI Enclosure Services Proposals
5.4 Other Proposals
6. SCSI Protocol Topics
7. Old Business
8. New Business
9. Review of Working Drafts
10. Review of Recommendations to the Plenary
11. Meeting Schedule
12. Adjournment
Results of Meeting
1. Opening Remarks
John Lohmeyer called the meeting to order at 9:10 a.m. Wednesday, July 12,
2006. He thanked LSI Logic Corp. for hosting the meeting. As usual, the people
present introduced themselves.
2. Approval of Agenda
The draft agenda was approved with no additions or changes.
No items were added/revised 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
------------------------------------ -- ------------------------------------
Mr. Chris Fore P Adaptec, Inc.
Mr. James A. Lott, Jr. P Dallas Semiconductor
Mr. Gideon Avida P Decru
Mr. Kevin Marks P Dell, Inc.
Mr. Gary S. Robinson P EMC Corp.
Mr. Robert H. Nixon P Emulex
Mr. Ralph O. Weber P ENDL Texas
Mr. Walt Hubis V Engenio Information Tech.
Mr. Mike Fitzpatrick P Fujitsu
Mr. Michael Banther V Hewlett Packard Co.
Mr. Rob Elliott P Hewlett Packard Co.
Mr. Steven Fairchild V Hewlett Packard Co.
Mr. Dan Colegrove P Hitachi Global Storage Tech.
Mr. Kevin Butt A IBM Corp.
Mr. George O. Penokie P IBM Corp.
Mr. Schelto van Doorn V Intel Corp
Mr. Robert Sheffield P Intel Corp.
Mr. Dennis Moore P KnowledgeTek, Inc.
Mr. John Geldman P Lexar Media, Inc.
Mr. John Lohmeyer P LSI Logic Corp.
Mr. Avraham Shimor P M-Systems
Mr. David Geddes P Marvell Semiconductor, Inc.
Mr. David Peterson P McDATA
Mr. Faisal Faruqui AV NeoScale Systems Inc.
Mr. Landon Noll AV NeoScale Systems Inc.
Mr. Frederick Knight A Network Appliance
Mr. Mark Overby P Nvidia Corp.
Mr. Edward A. Gardner V Ophidian Designs
Mr. Paul Entzel P Quantum Corp.
Dr. Paul Suhler A Quantum Corp.
Mr. Gerald Houlder P Seagate Technology
Mr. Gary D. Moorhead V Seagate Technology
Mr. William Martin P Sierra Logic, Inc.
Mr. Stephen Finch AV STMicroelectronics
Mr. Vit Novak P Sun Microsystems, Inc.
Mr. Curtis Stevens P Western Digital
Mr. Jeff Williams P Xiotech Corp.
Mr. Rich Ramos P Xyratex
38 People Present
Status Key: P - Principal
A,A# - Alternate
AV - Advisory Member
L - Liaison
V - Visitor
4. SCSI Architecture Model Topics
4.1 Making linked commands obsolete (no document) [Evans]
This topic was covered under agenda item 4.2.
4.2 SAM-4, et al.: making linked commands obsolete (06-259r1) [Evans]
Mark Evans was unable to attend and Gerry Houlder volunteered to assume
ownership of the proposal.
The group reviewed the proposal and provided suggested improvements which
Gerry agreed to incorporate in the next revision.
Ralph Weber moved that 06-259r1 (r0 as revised) be recommended for inclusion
in SAM-4, SPC-4, SBC-3, SSC-3, SMC-3, MMC-6, SES-2, OSD-2, ADC-2, SAS-2,
FCP-4, ADT-2, and SAT. John Lohmeyer seconded the motion. In the absence of
objections, the motion passed unanimously.
4.3 SAM-4 SPC-4 et al Multiple service delivery subsystem editorial tweaks
(06-323r0) [Elliott]
Rob Elliott presented a proposal to change 'the service delivery subsystem' to
'a service delivery subsystem' in several draft standards (06-323r0). George
Penokie raised concerns about there being only one service delivery subsystem
in a domain and Rob resolved them.
The group requested several minor changes and Rob agreed to prepare a new
revision.
Rob Elliott moved that 06-323r1 (r0 as modified) be recommended for inclusion
in SAM-4, SPC-4, SBC-3, SSC-3, SMC-3, SES-2, ADC-2, SAS-2, and FCP-4. Bob
Nixon seconded the motion. In the absence of objections, the motion passed
unanimously.
4.4 SAM-4 Response Fence for protocol services (06-341r0) [Elliott]
Rob Elliott presented a proposal to add a 'Response Fence' parameter to the
SAM-4 function prototypes that initiate Transport Layer actions (06-314r0).
George Penokie questioned how well the details of the proposal fit the current
SCSI Architecture Model.
Rob Elliott suggested that 04-072r0 might be a more palatable solution and
George concurred with some caveats. Rob agreed to prepare a new revision of
04-072r0 for consideration at the next meeting.
5. Command Set Topics
5.1 SCSI Primary Commands Proposals
5.1.1 SPC-4: Log Command Corrections (05-232r1) [Penokie]
George Penokie asked that discussion of this topic be deferred to the next
meeting.
5.1.2 SPC-4: Self Describing Command Timeouts (05-284r1) [Butt]
Kevin Butt asked that discussion of this topic be deferred to the next
meeting.
5.1.3 SPC-4 Wrapping and saturating counter definitions (06-175r1) [Elliott]
Rob Elliott presented a proposal to clarify how counters are processed when
they reach their maximum values (06-175r1). One minor editorial correction was
requested and Rob agreed to prepare a new revision.
Rob Elliott moved that 06-175r2 (r1 as modified) be recommended for inclusion
in SPC-4. Vit Novak seconded the motion. In the absence of objections, the
motion passed unanimously.
5.1.4 SPC-4 Peripheral device informational identifier (06-221r1) [Elliott]
Rob Elliott presented a proposal to add administrative identification
information to the SET/REPORT DEVICE IDENTIFIER commands (06-221r1). The group
requested several changes including changes to the command name. Rob agreed to
prepare a new revision of the proposal for consideration at the next meeting.
5.1.5 SPC-4 REQUEST SENSE parameter data clarifications (06-264r1) [Elliott]
Rob Elliott presented a proposal to clarify REQUEST SENSE command processing
in various error cases (06-264r1). The group requested several editorial
changes and Rob agreed to prepare a new revision of the proposal.
Rob Elliott moved that 06-264r2 (r1 as modified) be recommended for inclusion
in SPC-4. Ralph Weber seconded the motion. In the absence of objections, the
motion passed unanimously.
5.1.6 SPC-4 Fix persistence of SET DEVICE IDENTIFIER (06-278r0) [Entzel]
Paul Entzel presented a proposal to clearly specify that information stored by
the SET DEVICE IDENTIFIER command persist across all types of resets, power
loss, etc. (06-278r0 be recommended for
inclusion in SPC-4. Gerry Houlder seconded the motion. In the absence of
objections, the motion passed unanimously.
5.1.7 SPC-4 SBC-3 REQUEST SENSE and Stopped power condition (06-274r0)
[Elliott]
Rob Elliott presented a proposal to clarify responses returned by the REQUEST
SENSE command when a drive is in the stopped power condition (06-274r0). The
group requested substantive changes in the proposal and Rob agreed to prepare
a new revision.
Rob Elliott moved that 06-274r1 (r0 as modified) be recommended for inclusion
in SPC-4 and SBC-3. Kevin Marks seconded the motion. The motion passed
10:1:10.
5.1.8 SPC-4 WRITE BUFFER clarifications (06-282r0) [Elliott]
Rob Elliott presented a proposal to clarify when downloaded microcode takes
effect (06-282r0). He noted that the proposal included several other editorial
changes. Several modified descriptions generated significant confusion in the
group. Among other suggestions, Bob Nixon proposed writing a model clause for
microcode download as a way to better clarify the microcode download behavior.
Rob collected dozens of other suggestions for improving the proposal. He
promised to prepare a revised proposal for consideration at the next meeting.
5.1.9 SPC-4 Persistent Reservations correction (06-298r0) [Weber]
Ralph Weber presented a proposal to make the spec_i_pt bit definition match
the persistent reservations model (06-298r0
be recommended for inclusion in SPC-4. Bob Nixon seconded the motion. In the
absence of objections, the motion passed unanimously.
5.1.10 SPC-4 Statistics logging for FUA and FUA_NV (06-320r0) [Elliott]
Rob Elliott presented a proposal to collect separate logging of commands with
the fua and fua_nv bits set (06-320r0). The group requested that the new
fields be placed in a new, optional log parameter and Rob agreed to modify the
proposal.
Rob Elliott moved that 06-320r1 (r0 as modified) be recommended for inclusion
in SPC-4. Mark Overby seconded the motion. The motion passed 7:0:16.
5.1.11 SPC-4 Statistics and Performance log pages command cleanup (06-321r0)
[Elliott]
Rob Elliott presented a proposal to clarify several issues with the Statistics
and Performance log pages (06-321r0). The group questioned the addition of
WRITE SAME to the list of write commands covered by the log page. The handling
of the XOR commands could not be fully resolved and George Penokie threatened
to invoke the two-week rule when the proposal was modified to remove the
XDREAD and XDWRITE commands from the current list.
Rob Elliott moved that 06-321r1 (r0 as modified) be recommended for inclusion
in SPC-4. Gerry Houlder seconded the motion. The motion passed 7:0:16.
5.1.12 SPC-4: New ASC/ASCQ for SAT queue cleared condition (06-325r0) [Overby]
Mark Overby presented a proposal requesting the assignment of an additional
sense code for use by SAT (06-325r0 be
recommended for inclusion in SPC-4. Bob Sheffield seconded the motion. In the
absence of objections, the motion passed unanimously.
5.1.13 Statistics Group Number inconsistencies in SPC-4, SSC-3, and MMC-5
(06-337r0) [Weber]
Ralph Weber presented a proposal to remove three commands from the Statistics
and Performance log page list of read commands (06-337r0). Ralph Weber moved
that 06-337r0 be recommended for inclusion in SPC-4. Rob Elliott seconded the
motion. In the absence of objections, the motion passed unanimously.
5.2 SCSI Block Commands Proposals
5.2.1 SBC-3 Physical blocks (06-034r4) [Elliott]
Rob Elliott presented a proposal to add reporting actual sector size and
managing such information using the FORMAT UNIT command, READ CAPACITY
command, and related aspects of SBC-3 (06-034r4). The group requested the
addition of figures showing the effects of the LBA To Be Aligned values.
Several other changes were requested and Rob agreed to prepare a new revision
of the proposal.
Rob Elliott moved that 06-034r5 (r4 as revised) be recommended for inclusion
in SBC-3. Curtis Stevens seconded the motion. The motion passed 5:4:12.
5.3 SCSI Enclosure Services Proposals
No SES-2 proposals were presented to the group.
5.4 Other Proposals
No other proposals were presented to the group.
6. SCSI Protocol Topics
No SCSI Protocol topics were presented to the group.
7. Old Business
There was no old business.
8. New Business
There was no new business.
9. Review of Working Drafts
No requests were made to review working drafts at this meeting.
10. Review of Recommendations to the Plenary
Ralph Weber noted that the following recommendations have been made to the T10
plenary:
For inclusion in SPC-4:
06-175r2 (Wrapping and saturating counter definitions) [Elliott]
06-278r0 (Fix persistence of SET DEVICE IDENTIFIER) [Entzel]
06-264r2 (REQUEST SENSE parameter data clarifications) [Elliott]
06-325r0 (New ASC/ASCQ for SAT queue cleared condition) [Overby]
06-298r0 (Persistent Reservations correction) [Weber]
06-320r1 (Statistics logging for FUA and FUA_NV) [Elliott]
06-337r0 (Statistics Group Number inconsistencies in SPC-4, SSC-3, and MMC-5)
[Weber]
06-321r1 (Statistics and Performance log pages command cleanup) [Elliott]
For inclusion in SBC-3:
06-034r5 (Physical blocks) [Elliott]
For inclusion in SPC-4 and SBC-3:
06-274r1 (REQUEST SENSE and Stopped power condition) [Elliott]
For inclusion in SAM-4, SPC-4, SBC-3, SSC-3, SMC-3, MMC-6, SES-2, OSD-2,
ADC-2, SAS-2, FCP-4, ADT-2, and SAT:
06-259r1 (Making linked commands obsolete) [Evans/Houlder/Weber]
For inclusion in SAM-4, SPC-4, SBC-3, SSC-3, SMC-3, SES-2, ADC-2, SAS-2, and
FCP-4:
06-323r1 (Multiple service delivery subsystem editorial tweaks) [Elliott]
11. Meeting Schedule
The next meeting of the SCSI Commands, Architecture, and Protocols Working
Group will be Wednesday, September 14, 2006 from 9 a.m. to 8 p.m. (or until
all agenda items are completed). The meeting will be in Nashua, NH at the
Crowne Plaza hotel (1-603-886-1200 Reservations: www.crowneplazanashua.com
Group Code: HCM) hosted by Hitachi Cable Manchester.
12. Adjournment
The meeting was adjourned at 4:35 p.m. on Wednesday July 12, 2006.