ASCII Text of SBP-2 Project Proposal

Martin Freeman martin at PRPA.Philips.COM
Fri Oct 18 12:05:40 PDT 1996


* From the SCSI Reflector (scsi at symbios.com), posted by:
* Martin Freeman <martin at PRPA.Philips.COM>
*
Peter:

It would be a good idea to reference the following standards activities
in the appropriate sections (e.g. sections 5.4, 5.8) of the SBP-2 proposal:

   IEEE P1212A    (revision PAR to be requested soon)
   IEEE P1596     Scalable Coherent Interface
   IEEE P1285     Scalable Storage Interface
   IEEE P1996     HI-REL PCI

Regards,
Martin


> From PJohansson at aol.com Wed Oct 16 12:33 PDT 1996
> From: PJohansson at aol.com
> Date: Wed, 16 Oct 1996 15:16:18 -0400
> To: scsi at symbios.com (x3t10scsireflector)
> Cc: p1394 at Sun.COM (ieee1394reflector)
> Subject: ASCII Text of SBP-2 Project Proposal
> Content-Type: text
> Content-Length: 7510
> 
>                       Project Proposal
>                         For a New
>                        X3 Standard
>                   Serial Bus Protocol 2
>                         (SBP-2)
> 
>                     November 7, 1996
> 
> 1. IDENTIFICATION OF PROPOSED PROJECT
> 
> 1.1 TITLE: Serial Bus Protocol 2 (SBP-2).
> 
> 1.2 PROPOSER: X3T10.
> 
> 1.3 DATE SUBMITTED: November 7, 1996
> 
> 1.4 PROJECT TYPE: D
> 
> Development of a standard within an X3 Technical Committee.
> 
> 2. JUSTIFICATION OF PROPOSED STANDARD
> 
> 2.1 NEEDS:
> 
> The standardization of High Performance Serial Bus, IEEE Std 
> 1394-1995, has generated a requirement for a simple, 
> flexible and command set independent transport protocol. The 
> protocol should define mechanisms for the delivery of 
> commands, data and status for High Performance Serial Bus 
> devices.
> 
> A particular need to be addressed by the SBP-2 project is 
> the definition of facilities to accommodate isochronous data 
> streams.
> 
> 2.2 RECOMMENDED SCOPE OF STANDARD:
> 
> The SBP-2 standard will define  transport layer protocols  
> to take advantage of the continued evolution of the High 
> Performance Serial Bus, IEEE Std 1394-1995.
> Candidates for inclusion in the SBP-2 draft standard are:
> 
>   a) define a transport protocol that is independent of the 
>      command set,
>   b) develop functional specifications for SBP-2 high-
>      availability factors, possibly in connection with yet 
>      to be defined extensions to High Performance Serial Bus 
>      transport media,
>   c) provide functionality to incorporate the anticipated 
>      inclusion of gigabit and greater transfer rates by High 
>      Performance Serial Bus,
>   d) insure SBP-2 compatibility for operations within a 
>      group of High Performance Serial Buses connected by 
>      bridges,
>   e) provision of facilities to take advantage of the 
>      isochronous data transfer capabilities of High 
>      Performance Serial Bus, and
>   f) other capabilities which fit within the general 
>      application scope of High Performance Serial Bus that 
>      may be proposed during the development phase by the 
>      participants in the project.
> 
> 2.3 EXISTING PRACTICE IN AREA OF PROPOSED STANDARD:
> 
> Serial Bus Protocol (X3.268-1995). Other X3T10 projects 
> exist that define transport protocol(s) over different 
> media, for example Fibre Channel and SSA.
> 
> 2.4 EXPECTED STABILITY OF PROPOSED STANDARD WITH RESPECT TO 
>     CURRENT AND POTENTIAL TECHNOLOGICAL ADVANCE:
> 
> The nature of the proposed project is to insure that SBP-2 
> has an upward, highly compatible growth path. This will 
> insure that investments in SBP-2 are provided with stability 
> in the face of technological developments.
> 
> 3. DESCRIPTION OF PROPOSED PROJECT:
> 
> 3.1 TYPE OF DOCUMENT: Standard.
> 
> 3.2 DEFINITION OF CONCEPTS AND SPECIAL TERMS: None.
> 
> 3.3 EXPECTED RELATIONSHIP WITH APPROVED X3 REFERENCE MODELS:
> 
> The SBP-2 standard is intended for use in closed systems.
> 
> 3.4 RECOMMENDED PROGRAM OF WORK:
> 
> The following program of work is planned for the SBP-2:
>   a) solicit continuing participation by the current 
>      membership of X3T10 through X3 procedures. Invite 
>      comments and proposals from organizations that may have 
>      a contribution to the SBP-2 standard,
>   b) establish functional requirements for SBP-2,
>   c) prepare a draft proposed standard based on proposals 
>      submitted and other information gathered during the 
>      initial investigation,
>   d) consider the results of SBP-2 testing as may be 
>      available to the committee through the voluntary 
>      efforts of the X3T10 membership, and
>   e) submit the draft proposed standard to X3 for further 
>      processing.
> 
> 3.5 RESOURCES - INDIVIDUALS AND ORGANIZATIONS COMPETENT IN 
>     THE SUBJECT MATTER:
> 
> The current membership of X3T10 includes representatives 
> from all parts of the computer industry, from semiconductor 
> chip manufacturers to large mainframe system manufacturers 
> as well as government agencies. The members of X3T10 have 
> expressed their desire to participate and cooperate in the 
> development of this proposed standard.
> 
> There are sufficient resources to complete the development 
> of this standard without delaying work on other projects.
> High Performance Serial Bus has been adopted for use outside 
> of the computer industry. X3T10 could benefit from contact 
> with other groups that embody High Performance Serial Bus 
> expertise. The 1394 Trade Association, which meets four 
> times a year, is representative of the High Performance 
> Serial Bus community and is an appropriate point of contact.
> 
> 3.6 RECOMMENDED X3 DEVELOPMENT TECHNICAL COMMITTEE:
> 
> It is recommended that the development work be done in 
> Technical Committee X3T10 which is responsible for 
> developing lower-level interface standards.
> 
> 3.7 ANTICIPATED FREQUENCY AND DURATION OF MEETINGS:
> 
> Technical Committee X3T10 meets bimonthly. Specific task ad 
> hoc groups are called as may be required for one to three 
> days between the regular meetings but their results are not 
> binding.
> 
> 3.8 TARGET DATE FOR dpANS TO X3: November, 1997.
> 
> 3.9 ESTIMATED USEFUL LIFE OF STANDARD:
> 
> It is anticipated that this standard will have a life of 
> five (5) years.
> 
> 4. IMPLEMENTATION IMPACTS
> 
> 4.1 IMPACT ON EXISTING USER PRACTICES AND INVESTMENTS:
> 
> The proposed SBP-2 standard will provide an evolutionary 
> growth path to the existing practices and investments. It is 
> likely that any isolated negative impacts would occur in any 
> case through non-standard evolution or revolution.
> 
> 4.2 IMPACT ON SUPPLIER PRODUCTS AND SUPPORT:
> 
> The proposed SBP-2 standard will provide an evolutionary 
> growth path to the existing practices and investments. It is 
> likely that any isolated negative impacts would occur in any 
> case through non-standard evolution or revolution.
> 
> 4.3 TECHNIQUES AND COSTS FOR COMPLIANCE VERIFICATION:
> 
> The committee will consider the results of SBP-2 testing as 
> may be available to the committee through the voluntary 
> efforts of the various participants in X3T10. With this 
> method all costs are borne by the organizations of the 
> various participants and have for the most part been mainly 
> an adjunct of their normal development costs.
> 
> 4.4 LEGAL CONSIDERATIONS:
> 
> There are no known legal considerations unique to SBP-2. A 
> Call for Patents will be made.
> 
> 5. CLOSELY RELATED STANDARDS ACTIVITIES
> 
> 5.1 EXISTING X3 STANDARDS: None.
> 
> 5.2 X3 STANDARDS DEVELOPMENT PROJECTS:
> 
>   BSR Number    Title                            Project
> 
>   X3.xxx-199x   SCSI-3 Fibre Channel Protocol    993D
>   X3.268-1995   SCSI-3 Serial Bus Protocol       992D
>   X3.xxx-199x   SCSI-3 Serial Storage Protocol
> 
> 5.3 X3 STUDY GROUPS: None.
> 
> 5.4 OTHER RELATED DOMESTIC STANDARDS EFFORTS:
> 
>   IEEE P1394a    High Performance Serial Bus (Supplement)
>   IEEE P1394.1   High Performance Serial Bus Bridges
>   IEEE P1394.2   High Performance Serial Bus
>                (  Scalable Gigabit Extensions)
> 
> 5.5 ISO/IEC JTC 1 STANDARDS DEVELOPMENT PROJECTS:
> 
>   CD xxxx-x      SCSI-3 Fibre Channel Protocol
>   CD 9316-7      SCSI-3 Serial Bus Protocol
>   CD xxxx-x      SCSI-3 Serial Storage Protocol
> 
> It is anticipated that SBP-2 will be proposed to 
> JTC1/SC25/WG4.
> 
> 5.6 OTHER RELATED INTERNATIONAL STANDARDS DEVELOPMENT 
>     PROJECTS:
> 
>   ISO/IEC 1883,
>   "Digital Interface for Consumer Audio/Video Equipment",
>   proposed to IEC Technical Committee 84.
> 
> 5.7 RECOMMENDATIONS FOR COORDINATING LIAISON: None.
> 
> 5.8 RECOMMENDATIONS FOR CLOSE LIAISON:
> 
> Continue liaison with the IEEE Microprocessor Committee 
> responsible for High Performance Serial Bus and its 
> authorized Working Groups.
> 
> 

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