Draft minutes of CAP WG -- May 7, 2003
John Lohmeyer
lohmeyer at t10.org
Thu May 8 11:25:34 PDT 2003
* From the T10 Reflector (t10 at t10.org), posted by:
* John Lohmeyer <lohmeyer at t10.org>
*
Accredited Standards Committee*
InterNational Committee for Information Technology Standards (INCITS)
Doc. No.: T10/03-178r0
Date: May 8, 2003
Reply to: John Lohmeyer
To: T10 Membership
From: Ralph Weber and John Lohmeyer
Subject: SCSI Commands, Architecture, May 7, 2003
Nashua, NH
Agenda
1. Opening Remarks
2. Approval of Agenda
3. Attendance and Membership
4. SCSI Architecture Model Topics
4.1 SAM-3, SPC-3, and SBC power conditions proposal (02-464r2) [Evans]
4.2 Remove ULP and LLP from SAM-3 (03-003r2) [Weber]
4.3 Calls and Arguments in SAM-3 (03-108r2) [Weber]
4.4 Task Management Incorrect Logical Unit Selection (03-173r0) [Weber]
4.5 SAM-3 Hard reset generates I_T nexus loss (03-184r0) [Elliott]
5. Command Set Topics
5.1 Persistent Reserve Out Functionality for Reserve/Release Replacement
(02-141r1) [Peterson]
5.2 Ordered SCSI proposal (02-283r0) [Peterson]
5.3 Two persistent Reservations Problems - Update (02-483r1) [Cummings]
5.4 Yet More Persistent Reservation Fixes (03-094r2) [Penokie]
5.5 RBC Defect Report (03-021r0) (RBC-A) [Atkinson, Roberts]
5.6 SES-2 Enclosure/Array Control Device Element for device activity
(03-059r1) [Sheffield]
5.7 SPC-3 MSB and LSB labels (03-127r1) [Elliott]
5.8 Should security erase be mandatory in SBC-2? [Lohmeyer]
5.9 QErr=01b 5.10 SES-2 Array Control and Array Status diagnostic pages (reflector
message #3976) [Elliott]
5.11 SPC-3:New Inquiry VPD Page - Management Network Address (03-183r0)
[Binford]
5.12 SPC-3: Un-hiding S.M.A.R.T. (03-169r0) [Lohmeyer]
6. SCSI Protocol Topics
7. Old Business
8. New Business
8.1 End-to-End Data Protection Proposal (03-110r1, 03-111r0) [Houlder]
8.2 Simplified End-to-End Data Protection (03-176r0) [Penokie]
9. Review of Documents
9.1 SRP-2 Review (SRP-2) [Simpson]
10. Review of Recommendations to the Plenary
11. Meeting Schedule
12. Adjournment
Results of Meeting
1. Opening Remarks
John Lohmeyer, the T10 Chair, called the meeting to order at 9:00 a.m.,
Wednesday May 7, 2003. He thanked Zane Daggett of Hitachi Cable Manchester for
hosting the meeting.
As is customary, the people attending introduced themselves and a copy of the
attendance list was circulated.
2. Approval of Agenda
The draft agenda was approved with no changes.
The following agenda items were added/revised during the course of the
meeting:
5.12 SPC-3: Un-hiding S.M.A.R.T. (03-169r0) [Lohmeyer]
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 Electronic Mail Address
---------------------- -- ------------------------- -------------------------
Mr. Ron Roberts P Adaptec, Inc. rkroberts at aol.com
Ms. Pat Thaler V Agilent Technologies pat_thaler at agilent.com
Dr. Claudio DeSanti P Andiamo Systems, Inc. cds at andiamo.com
Mr. John Tyndall A Crossroads Systems, Inc. jtyndall at crossroads.com
Mr. Titkwan Hui A Dallas Semiconductor tk.hui at dalsemi.com
Mr. David Black A EMC Corp. black_david at emc.com
Mr. Robert H. Nixon P Emulex bob.nixon at emulex.com
Mr. Ralph O. Weber P ENDL Texas roweber at acm.org
Mr. Nathan Hastad P General Dynamics nathan.hastad at gd-ais.com
Mr. Rob Elliott P Hewlett Packard Co. Elliott at hp.com
Mr. Zane Daggett P Hitachi Cable Manchester zdaggett at hcm.hitachi.com
Mr. George O. Penokie P IBM / Tivoli Systems gop at us.ibm.com
Mr. Cris Simpson P Intel Corp. cris.simpson at intel.com
Mr. Robert Sheffield A Intel Corp. robert.l.sheffield at intel.
com
Mr. John Lohmeyer P LSI Logic Corp. lohmeyer at t10.org
Mr. Keith Holt V LSI Logic Corp. keith.holt at lsil.com
Mr. Mark Evans P Maxtor Corp. mark_evans at maxtor.com
Mr. Rich Ramos V MTI rich at chi.mti.com
Mr. Edward A. Gardner AV Ophidian Designs eag at ophidian.com
Mr. Bill Galloway P Pivot3, Inc. billg at pivot3.com
Mr. Craig W. Carlson A# QLogic Corp. craig.carlson at qlogic.com
Mr. Paul Entzel P Quantum Corp. paul.entzel at quantum.com
Mr. Gerald Houlder P Seagate Technology gerry.houlder at seagate.com
Mr. Gary D. Moorhead V Seagate Technology gary.moorhead at seagate.com
Mr. Vit Novak P Sun Microsystems, Inc. vit.novak at sun.com
Mr. Charles Binford A Sun Microsystems, Inc. Charles.Binford at sun.com
Mr. Robert Kando A. Texas Instruments Robert_Kando at ti.com
Mr. Ron Mathews P UNISYS Corporation ronald.mathews at unisys.com
Mr. Roger Cummings P Veritas Software roger.cummings at veritas.
com
Mr. Kenneth Hirata P Vixel Corp. Ken.Hirata at Vixel.com
30 People Present
Status Key: P - Principal
A,A# - Alternate
AV - Advisory Member
L - Liaison
V - Visitor
4. SCSI Architecture Model Topics
4.1 SAM-3, SPC-3, and SBC power conditions proposal (02-464r2) [Evans]
Mark Evans presented a proposal to make the power management feature
consistent between SAM-3, SPC-3, and SBC-2 (02-464r2). The group requested
minor editorial changes and Mark agreed to prepare a new revision.
Mark Evans moved that 02-464r3 (r2 as modified) be recommended for inclusion
in SPC-3, SAM-3, and SBC-2. Rob Elliott seconded the motion. In the absence of
any objections the motion passed unanimously.
4.2 Remove ULP and LLP from SAM-3 (03-003r2) [Weber]
Ralph Weber presented a proposal to remove the confusing use of ULP and LLP
|from SAM-3 (03-003r1). The group requested minor changes and Ralph agreed to
prepare a new revision.
Ralph Weber moved that 03-003r2 (r1 as modified) be recommended for inclusion
in SAM-3. George Penokie seconded the motion. In the absence of any objections
the motion passed unanimously.
4.3 Calls and Arguments in SAM-3 (03-108r2) [Weber]
Ralph Weber presented a proposal intended to make the usage of call and
arguments consistent in SAM-3 (03-108r1). The group requested minor changes
and Ralph agreed to prepare a new revision.
Ralph Weber moved that 03-108r2 (r1 as modified) be recommended for inclusion
in SAM-3. Mark Evans seconded the motion. In the absence of any objections the
motion passed unanimously.
4.4 Task Management Incorrect Logical Unit Selection (03-173r0) [Weber]
Ralph Weber presented a proposal to define a task management function service
response for Incorrect Logical Unit Selection (03-173r0). The group discussed
whether the proposed new service response is needed.
Ralph Weber moved that 03-173r0 be recommended for inclusion in SAM-3. Mark
Evans seconded the motion. In the absence of any objections the motion passed
unanimously.
4.5 SAM-3 Hard reset generates I_T nexus loss (03-184r0) [Elliott]
Rob Elliott presented a proposal to add a requirement that hard reset
conditions generate I_T nexus loss conditions (03-184r0). Rob noted that the
proposal simply adds text to match lines in existing SAM-3 figures.
The group requested minor changes and Rob agreed to prepare a revised
proposal.
Rob Elliott moved that 03-184r1 (r0 as modified) be recommended for inclusion
in SAM-3. Ralph Weber seconded the motion. In the absence of any objections
the motion passed unanimously.
5. Command Set Topics
5.1 Persistent Reserve Out Functionality for Reserve/Release Replacement
(02-141r1) [Peterson]
In the absence of Dave Peterson, discussion of this topic was deferred to the
next meeting.
5.2 Ordered SCSI proposal (02-283r0) [Peterson]
In the absence of Dave Peterson, discussion of this topic was deferred to the
next meeting.
5.3 Two persistent Reservations Problems - Update (02-483r1) [Cummings]
Roger Cummings presented a proposal to change the way Persistent Reservations
interact with Reserve/Release reservations (03-483r1). The group suggested
that defining a new command that converts a Reserve/Release reservation to a
Persistent Reservation should solve Roger's first problem. It was noted that a
solution that accounts for error recovery issues probably will require adding
text defining a new behavior for the RELEASE command in SPC-3.
The group discussed Roger's second problem and recommended defining a Move
Reservation PERSISTENT RESERVE OUT service action.
Roger agreed to prepare a new proposal for consideration at the next meeting.
5.4 Yet More Persistent Reservation Fixes (03-094r2) [Penokie]
George Penokie presented a proposal to correct several problems in the
definition of persistent reservations introduced by the All Registrants type
persistent reservation (03-094r2).
George noted that discussions by e-mail have resulted in revisions to the
proposal that makes a PREMPT AND ABORT remove all registrations. The group
discussed this change and reached agreement that the change is appropriate.
The group requested minor changes in the proposal and George agreed to prepare
a new revision.
Ralph Weber moved that 03-094r3 (r2 as modified) be recommended for inclusion
in SPC-3. Roger Cummings seconded the motion. In the absence of any objections
the motion passed unanimously.
5.5 RBC Defect Report (03-021r0) (RBC-A) [Atkinson, Roberts]
Ron Roberts and John Lohmeyer reported that the RBC amendment has been posted
and that a letter ballot will begin at the end of the week.
5.6 SES-2 Enclosure/Array Control Device Element for device activity
(03-059r1) [Sheffield]
Bob Sheffield presented a proposal to define a DR_ACT bit in SES-2 (03-059r1).
No concerns were expressed regarding the proposal.
Bob Sheffield moved that 03-059r1 be recommended for inclusion in SES-2. Rob
Elliott seconded the motion. In the absence of any objections the motion
passed unanimously.
5.7 SPC-3 MSB and LSB labels (03-127r1) [Elliott]
Rob Elliott presented a proposal to remove some MSB and LSB labels in SPC-3
(03-127r1). The group discussed the effects of the proposal on the way ASCII
strings are represented in SPC-3 and concluded that no technical changes
result.
Ralph Weber mentioned the possibility of applying the conventions introduced
by the proposal to padded strings and it was agreed that such a change should
be considered editorial.
Rob Elliott moved that 03-127r1 be recommended for inclusion in SPC-3. Gerry
Houlder seconded the motion. The motion passed 11:1:4.
5.8 Should security erase be mandatory in SBC-2? [Lohmeyer]
John Lohmeyer presented a request from Gordon Hughes (Center for Magnetic
Recording Research) to make the SBC-2 security erase function mandatory. John
mentioned a claim by Gordon that ATA drives generally provide security erase
while SCSI drives do not. Some people present questioned this claim.
The group discussed the mechanisms and needs for the security erase function.
Mark Evans reported on the ATA definition of security erase, noting that the
implementation is far more subject to vendor interpretation than the SCSI
feature.
The group reviewed the SCSI definition as it currently reads in SBC-2.
Ralph Weber moved that the SBC-2 editor be instructed to make the SI bit
mandatory and make any necessary additional changes. John Lohmeyer seconded
the motion. The motion failed 2:7:8.
5.9 QErr=01b
Ralph Weber presented a proposal to clarify which tasks receive TASK ABORTED
status after a CHECK CONDITION is returned and the QErr value is 01b.
The group requested that changes be made to clarify and simplify the proposal
and Ralph agreed to prepare a new revision.
Ralph Weber moved that 03-172r1 (r0 as modified) be recommended for inclusion
in SPC-3. Bill Galloway seconded the motion. The motion passed 13:0:4.
5.10 SES-2 Array Control and Array Status diagnostic pages (reflector
message #3976) [Elliott]
Rob Elliott brought a T10 reflector message (#3976) he sent on April 24, 2003
to the group's attention. He noted that a formal proposal might be presented
at the next meeting.
5.11 SPC-3:New Inquiry VPD Page - Management Network Address (03-183r0)
[Binford]
Charles Binford presented a proposal to add a VPD page to return the network
management address (e.g., IP address or URL). The group provided Charles with
advice regarding improvements for the proposal.
It was suggested that the proposal should be written for incorporation in MSC
instead of SPC-3 and that the function should be defined as part of a
well-known logical unit.
Closer coordination with the ongoing changes in FC-GS-4 was recommended.
Charles agreed to work with the interested parties to prepare a revised
proposal for consideration at the next meeting.
5.12 SPC-3: Un-hiding S.M.A.R.T. (03-169r0) [Lohmeyer]
John Lohmeyer presented a proposal to add a note describing SMART in the
Information Exceptions mode page. The group requested changes in the proposal
and John agreed to prepare a new revision.
John Lohmeyer moved that 03-169r1 (r0 as modified) be recommended for
inclusion in SPC-3. Mark Evans seconded the motion. The motion passed 12:2:1.
6. SCSI Protocol Topics
No SCSI protocol topics were brought to the group.
7. Old Business
No old business was brought to the group.
8. New Business
8.1 End-to-End Data Protection Proposal (03-110r1, 03-111r0) [Houlder]
Gary Moorhead presented a proposal for end-to-end data protection (03-110r1).
The group discussed the principles of end-to-end data protection.
Gary agreed to bring his detailed proposal (03-111r0) to the next meeting.
8.2 Simplified End-to-End Data Protection (03-176r0) [Penokie]
George Penokie presented a proposal for simplified end-to-end data protection
(03-176r0).
The group discussed the usage of LBA information to identify the position of
data sent. George agreed to study the addition a second field based on an
application client view of LBA position information for end-to-end position
whereas LBA might be used by a RAID controller for position information in
relationship to its backing storage.
The group discussed the proposed extensions to existing commands.
George agreed to prepare a revised proposal for consideration at the next
meeting.
9. Review of Documents
9.1 SRP-2 Review (SRP-2) [Simpson]
At the request of Cris Simpson, discussion of this topic was deferred to the
next 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 SAM-3, SPC-3, SAM-3, SPC-3, and SBC power conditions proposal (02-464r3) [Evans] {modified}
For inclusion in SAM-3:
Remove ULP and LLP from SAM-3 (03-003r2) [Weber] {modified}
Calls and Arguments in SAM-3 (03-108r2) [Weber] {modified}
Task Management Incorrect Logical Unit Selection (03-173r0) [Weber]
SAM-3 Hard reset generates I_T nexus loss (03-184r1) [Elliott] {modified}
For inclusion in SPC-3:
Yet More Persistent Reservation Fixes (03-094r3) [Penokie] {modified}
SPC-3 MSB and LSB labels (03-127r1) [Elliott] {11:1:4}
QErr=01b SPC-3: Un-hiding S.M.A.R.T. (03-169r1) [Lohmeyer] {12:2:1, modified}
For inclusion in SES-2:
SES-2 Enclosure/Array Control Device Element for device activity (03-059r1)
[Sheffield]
11. Meeting Schedule
The next meeting of the SCSI Commands, Architecture, and Protocols Working
Group will be Tuesday, July 8, 2003 commencing at 1:30 p.m. and continuing
Wednesday, July 9, 2003 from 9 a.m. to 7 p.m. (or until all agenda items are
completed). The meeting will be in Colorado Springs, CO at the Wyndham
Colorado Springs Hotel (719-260-1800), hosted by LSI Logic.
12. Adjournment
The meeting was adjourned at 5:45 p.m. on Wednesday May 7, 2003.
*
* For T10 Reflector information, send a message with
* 'info t10' (no quotes) in the message body to majordomo at t10.org
More information about the T10
mailing list