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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