SPP Meeting January 15, 1992 Houston, Texas                       X3T9.2/92-21

Date:     January 17, 1992
To:       X3T9.2
From:     John Lohmeyer
Subject:  SPP Meeting January 15, 1992
______________________________________________________________________________

No specific agenda had been established for this meeting.  Another SPP 
architectural meeting had already been arranged for later in January with the 
editors and the people who had been most vocal about SPP architecture.  It was 
hoped that the working group could make some headway on a document structure 
so that the late January meeting could be more constructive.

Kurt Chan had drawn a foil with a suggested roadmap for the packetized 
documentation.  Dal whipped out a marker and came up with an alternative idea 
that no one found particularly repugnant.  Amazing.  This group had never 
agreed previously.  

The basic idea was to move the common packetized layer up into the Command Set 
layer.  This would establish an interface much like the CAM CCB.  Then any 
number of mapping documents could be established to map these CAM-like CCBs 
to the specific hardware interface (much like SIM does in CAM).

Dal's diagram (rearranged slightly) was as follows:

          +--------------------------+
          |  SCSI-3 Command Sets     |
          |- - - - - - - - - - - - - |
          |    CAM-like layer        |
          +--------------------------+
                       |
    +----------+-------+--+---------+---------+
    |          |          |         |         |   
 +-----+  +---------+  +-----+  +-------+  +-----+
 | SIP |  | Generic |  | FC4 |  | P1394 |  | SSA |
 | SIM |  |   SIM   |  | SIM |  |  SIM  |  | SIM |  <-- Actually SIM-like
 +-----+  +---------+  +-----+  +-------+  +-----+
    |          |          |         |         |   
 +-----+  +---------+  +-----+  +-------+  +-----+
 | SPI |  |  Other  |  | FC? |  | P1394 |  | SSA |
 +-----+  +---------+  +-----+  +-------+  +-----+

The group kick this idea around and couldn't find any obvious flaws.  Of 
course, we will have to go back to SPARC for several more project proposals if 
we make the SIMs separate documents, but the benefit of having separate 
documents may outweigh the extra work.

The group was so pleased with their achievement that they didn't want to jinx 
it by digging too much further.  The meeting was adjourned early at 3:00 p.m.

The next SPP working group meeting will be held at Apple Computer on January 
27-29, 1992.  This is intended to be a fairly small meeting to establish the 
document(s) structure.  If you wish to participate, please contact Scott 
Smyers at (408) 974-7057.

                              Meeting Attendees

             Name              Status          Organization
------------------------------ ------ ------------------------------
Mr. Edward A. Gardner            A    Digital Equipment Corp.
Dr. William Ham                  A    Digital Equipment Corp.
Mr. John A. Gallant              A    Digital Equipment Corp.
Mr. I. Dal Allan                 P    ENDL
Mr. Kurt Chan                    P    Hewlett Packard Co.
Mr. Ian D. Judd                  V    IBM (UK) Ltd.
Mr. Mike Mitoma                  V    IBM Almaden Research
Mr. George Penokie               P    IBM Corp.
Mr. Gary R. Stephens             A    IBM Corp.
Mr. Giles Frazier                S    IBM Corp.
Mr. John R. Taylor               V    IBM Corp.
Mr. Kevin R. Pokorney            A    Intellistor, Inc.
Mr. John Lohmeyer                P    NCR Corp.
Mr. David Steele                 S    NCR Corp.
Mr. Robert B. Lewis              V    Novell, Inc.
Mr. Gene Milligan                A    Seagate Technology
Mr. Gerald Houlder               A    Seagate Technology
Mr. Forrest Crowell              P    SGS-Thomson Microelectronics
Mr. Michael Franzino             O    Tandem
Mr. Arlan P. Stone               A    UNISYS

20 People Present

Status Key:  P   -  Principal Member
             A   -  Alternate Member
             L   -  Liaison
             O   -  Observer
             S,V -  Visitor