Accredited Standards Committee*
InterNational Committee for Information Technology Standards (INCITS)
Doc. No.: T10/06-290r0
Date: June 21, 2006
Reply to: Ralph Weber
To: T10 Membership
From: Ralph Weber
Subject: Minutes of SAS Zoning Management Working Group - June 20, 2006
Denver, CO
Agenda
1. Opening Remarks
2. Approval of Agenda
3. Attendance and Membership
4. Zone management
4.1 SAS-2 Zone Management Models (06-285r0) [Symons]
4.2 SAS-2 Zone Management Proxy Device (06-215r1) [Symons]
4.3 SAS-2 Registered Zone Management Client (06-286) [Symons]
4.4 SAS-2 Zone Management Use Cases (06-260r0) [Elliott]
4.5 SAS-2 Allow More Than One ZPSDS in a SAS Domain (06-279r0) [Elliott]
4.6 SAS-2 Enable and Disable Zoning (06-281r0) [Elliott]
4.7 SAS-2 Reporting ZONE PARTICIPATING CAPABLE in the IDENTIFY address
frame (06-210r2) [Marks]
5. SMP function topics
5.1 SAS-2 Add expander change count to all SMP functions (06-197r2)
[Elliott]
5.2 SAS-2 Restrict access to SMP write functions (06-208r1) [Elliott]
5.3 SAS-2 REPORT GENERAL additions for zoning and self configuration
(06-213r1) [Johnson]
5.4 SAS-2 SMP Lists (DISCOVER LIST) (06-037r6) [Johnson]
5.5 SAS-2 SMP CONFIGURE PHY ZONE function (06-201r1) [Symons]
5.6 SAS-2 Expander Routing Table (REPORT EXPANDER ROUTE TABLE) (06-078r2)
[Johnson]
5.7 SAS-2 Expander Route Table (CONFIGURE EXPANDER ROUTE TABLE) (06-214r0)
[Johnson]
5.8 SAS-2 SMP REPORT ZONE PERMISSION function (06-203r2) [Symons]
5.9 SAS-2 SMP CONFIGURE ZONE PERMISSION function (06-202r2) [Symons]
5.10 SAS-2 SMP ACTIVATE ZONE PERMISSION UPDATE functions (06-288r0) [Symons]
5.11 SAS-2 CONFIGURE & REPORT ZONE MANAGEMENT CLIENT ADDRESS functions
(06-289r0) [Symons]
6. Zoning/expander topology topics
6.1 SAS-2 Allow table-to-table expander attachment (06-189r2) [Elliott]
7. Self-configuring expander devices
7.1 SAS-2 Self-configuring expander status (06-187r1) [Elliott]
7.2 SAS-2 Expander Configuration Supervisor and SMP CHANGE Request
(06-029r2) [Weber and Johnson]
8. New Business
9. Review of Recommendations
10. Meeting Schedule
11. Adjournment
Results of Meeting
1. Opening Remarks
George Penokie, the T10 Vice-Chair, called the meeting to order at 9:32 a.m.,
Tuesday June 20, 2006. He thanked Steve Johnson of LSI Logic for hosting the
meeting.
As is customary, the people attending introduced themselves. Attendance was
taken electronically via the meeting web site.
2. Approval of Agenda
The draft agenda was approved with no changes.
No agenda additions and 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
------------------------------------ -- ------------------------------------
Mr. Kevin Marks P Dell, Inc.
Mr. Ralph O. Weber P ENDL Texas
Mr. Rob Elliott P Hewlett Packard Co.
Mr. George O. Penokie P IBM Corp.
Mr. Brad Besmer V LSI Logic Corp.
Mr. Steve Johnson V LSI Logic Corp.
Mr. Tim Symons P PMC-Sierra
Mrs. Zenta Darnell V Vitesse Semiconductor
8 People Present
Status Key: P - Principal
A,A# - Alternate
AV - Advisory Member
L - Liaison
V - Visitor
4. Zone management
4.1 SAS-2 Zone Management Models (06-285r0) [Symons]
Tim Symons presented a discussion of zoning management models which defined
either a zoning proxy server or a locking protocol to coordinate zoning
updates (06-285r0). The group coalesced around a distributed locking protocol
as opposed to the proxy model. Tim and Rob collected numerous comments to be
used in developing specific proposals.
Tim asked that discussion of this topic be removed from future agendas because
the detailed proposal resulting from the discussion is a separate document
(see agenda item 4.3).
4.2 SAS-2 Zone Management Proxy Device (06-215r1) [Symons]
Based on the decisions reached in agenda item 4.1,Tim Symons asked that
discussion of this topic be removed from future agendas.
4.3 SAS-2 Registered Zone Management Client (06-286) [Symons]
Tim Symons noted that key aspects of this proposal had been discussed under
item 4.1 and asked that discussion of this topic be deferred to the next
meeting.
4.4 SAS-2 Zone Management Use Cases (06-260r0) [Elliott]
Based on the results of the conference calls, Rob Elliott asked that
discussion of this topic be removed from future agendas.
4.5 SAS-2 Allow More Than One ZPSDS in a SAS Domain (06-279r0) [Elliott]
Rob Elliott presented a proposal to allow more than one ZPSDS in a SAS Domain
(06-279r0). Questions were raised about the proposal making SAS violate the
SAM-4 definition of a domain.
Rob noted that the situation described by the proposal is unavoidable during
the merging of two existing zones. Ralph Weber remained unwilling to allow the
multi-ZPSDS condition to be included in the zoning model, but expressed a
willingness to accept it as part of the description of zone merge processing.
Rob agreed to review the proposal in the larger context of merging zones and
revise the proposal for consideration at the next meeting.
4.6 SAS-2 Enable and Disable Zoning (06-281r0) [Elliott]
Rob Elliott presented a proposal showing how a zoning JBOD could be added to a
configuration with appropriate zoning management (06-281r0). Concerns were
raised regarding interactions between this proposal and the ideas discussed in
agenda item 4.1. Rob noted the issues and potential solutions. Rob agreed to
prepare a new revision of the proposal for consideration at the next meeting.
4.7 SAS-2 Reporting ZONE PARTICIPATING CAPABLE in the IDENTIFY address
frame (06-210r2) [Marks]
Kevin Marks presented a proposal to add bits to automate setting the zone
participating bit (06-210r2). Because of some write-only bits, the group
requested the addition of reporting functions and Kevin agreed to prepare a
new revision for consideration at the next meeting.
5. SMP function topics
5.1 SAS-2 Add expander change count to all SMP functions (06-197r2) [Elliott]
Rob Elliott presented a proposal to add expander change counters to SMP
functions (06-197r2). Because no use could be found for it, the group
requested removal of the expander change count field from the Zoned Broadcast
function and requested other minor changes. Rob agreed to prepare a new
revision of the proposal.
Concerns were raised about which error was more important to report than
others, but the issue was not considered critical to resolve in this proposal.
Rob Elliott moved that 06-197r3 (r2 as revised) be recommended for inclusion
in SAS-2. Kevin Marks seconded the motion. The motion passed 5:0:1.
5.2 SAS-2 Restrict access to SMP write functions (06-208r1) [Elliott]
Rob Elliott presented a proposal to restrict usage of SMP write functions to
zone group 2 (06-208r1). Rob noted the need to limit usage to zoning devices
and proposed specific changes.
Rob Elliott moved that 06-208r2 (r1 as revised) be recommended for inclusion
in SAS-2. Steve Johnson seconded the motion. In the absence of any objections,
the motion passed unanimously.
5.3 SAS-2 REPORT GENERAL additions for zoning and self configuration
(06-213r1) [Johnson]
Steve Johnson presented a proposal to enhance the Report General SMP function
for zoning and self configuring expanders (06-213r1). The group requested
several minor changes and Steve agreed to prepare a new revision of the
proposal.
Steve Johnson moved that 06-213r2 (r1 as revised) be recommended for inclusion
in SAS-2. Rob Elliott seconded the motion. In the absence of any objections,
the motion passed unanimously.
5.4 SAS-2 SMP Lists (DISCOVER LIST) (06-037r6) [Johnson]
Steve Johnson presented a proposal to define a single SMP function that
returns information about multiple phys (06-037r6). The group requested that
attempts to define the meaning of Reserved be removed. Concerns were raised
about the number of vendor specific bytes proposed. The group requested
several changes in the data returned in the response frame.
Steve agreed to prepare a new revision of the proposal reflecting all the
changes requested by the group.
Steve Johnson moved that 06-037r7 (r6 as revised) be recommended for inclusion
in SAS-2. Kevin Marks seconded the motion. The motion passed 6:1:0.
5.5 SAS-2 SMP CONFIGURE PHY ZONE function (06-201r1) [Symons]
Due to the late hour, discussion of this topic was deferred to the next
meeting.
5.6 SAS-2 Expander Routing Table (REPORT EXPANDER ROUTE TABLE) (06-078r2)
[Johnson]
Steve Johnson presented a proposal to an SMP Routing Tables Reporting function
that removed the concept of per-phy route tables (06-078r2) and indicated that
he had already begun making r3 in response to e-mail requests.
The group discussed which types of routing phys would be reported and
eventually concluded that only table routed phys would be reported (i.e.,
subtractive routed phys would not be reported).
Steve Johnson moved that 06-078r3 (r2 as revised) be recommended for inclusion
in SAS-2. Zenta Darnell seconded the motion. The motion passed 6:0:1.
5.7 SAS-2 Expander Route Table (CONFIGURE EXPANDER ROUTE TABLE) (06-214r)
[Johnson]
Due to the late hour, discussion of this topic was deferred to the next
meeting.
5.8 SAS-2 SMP REPORT ZONE PERMISSION function (06-203r) [Symons]
Due to the late hour, discussion of this topic was deferred to the next
meeting.
5.9 SAS-2 SMP CONFIGURE ZONE PERMISSION function (06-202r2) [Symons]
Due to the late hour, discussion of this topic was deferred to the next
meeting.
5.10 SAS-2 SMP ACTIVATE ZONE PERMISSION UPDATE functions (06-288r0) [Symons]
Tim Symons reviewed a proposal to define an SMP function to activate shadowed
zoning data (06-288r0). The group provided several suggestions to improve the
proposal and Tim agreed to prepare a new revision for consideration at the
next meeting.
5.11 SAS-2 CONFIGURE & REPORT ZONE MANAGEMENT CLIENT ADDRESS functions
(06-289r0) [Symons]
Tim Symons presented a proposal to define the SMP locking function discussed
under agenda item 4.1 (06-289r0). The group requested that the sender's SAS
address be removed from the request frame and Tim agreed to prepare a new
revision for consideration at the next meeting.
6. Zoning/expander topology topics
6.1 SAS-2 Allow table-to-table expander attachment (06-189r2) [Elliott]
Due to the late hour, Rob Elliott asked that discussion of this topic be
deferred to the next meeting.
7. Self-configuring expander devices
7.1 SAS-2 Self-configuring expander status (06-187r1) [Elliott]
Due to the late hour, Rob Elliott asked that discussion of this topic be
deferred to the next meeting.
7.2 SAS-2 Expander Configuration Supervisor and SMP CHANGE Request (06-029r2)
[Weber and Johnson]
Ralph Weber asked that discussion of this topic be deferred to the next
meeting.
8. New Business
No new business was brought before the group.
9. Review of Recommendations
The following document was recommended for inclusion in SAS-2 during this
meeting:
For inclusion in SAS-2:
06-197r3 (Add expander change count to all SMP functions) [Elliott]
06-208r2 (Restrict access to SMP write functions) [Elliott]
06-213r2 (REPORT GENERAL additions for zoning and self configuration)
[Johnson]
06-037r7 (SMP Lists (DISCOVER LIST)) [Johnson]
06-078r3 (Expander Routing Table (REPORT EXPANDER ROUTE TABLE)) [Johnson]
10. Meeting Schedule
A SAS Protocol Working Group meeting is scheduled for:
Monday, July 10, 2006 commencing at 9:00 a.m. in Colorado Springs, CO the
Antlers Hilton Hotel (1-719-955-5600) hosted by LSI Logic Corp.
Teleconference calls for SAS-2 Zoning will be held weekly and announced on the
T10 reflector. Other teleconference calls will be announced on the T10
reflector as needed.
11. Adjournment
The meeting was adjourned at 5:55 p.m. on Tuesday June 20, 2006.