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Final Agenda -- X3T9.2 Meeting #86 February 19-20, 1990 -- Austin, TX 1. Opening Remarks 2. Approval of Agenda 3. Attendance and Membership 3.1 Roll Call of Members in Jeopardy 4. Approval of Minutes - December Meeting San Diego, CA (X3T9.2/89-149) 5. Document Distribution 5.1 1990 Document Subscription Fees 6. Liaison Reports 6.1 ISO [Milligan] 6.2 IT8 6.3 SCSI-2 Common Access Method Committee Report [Allan] 6.4 Fiber Channel [Allan] 6.5 X3B7.1 Report 7. Review of Old Action Items 8. Working Group and/or Project Status Reports 8.1 ESDI [Allan] 8.2 SCSI General Working Group (X3T9.2/90-009) 8.3 Report on Cable Impedance Working Group Meeting (X3T9.2/90-23) [Lamers] 9. Old Business 9.1 Resolution of BSR X3.131-198x (SCSI-2) Public Review Comments 9.2 Single-cable 16-bit SCSI (89-94, 89-150, 90-004, 90-005, 90-006) 9.3 SCSI Transceivers [Murdock] 9.4 Packetized SCSI (X3T9.2/89-130) [Stephens] 9.5 Multi-Ported SCSI (X3T9.2/89-133) [Stephens] 9.6 Diagnostic Command Set (X3T9.2/90-022) 9.7 Call for Volunteers -- X3T9.2 Chairman and Vice Chairman (89-125) 9.8 SCSI-1 and CCS Emulation by SCSI-2 Devices (X3T9.2/90-003R1) [Houlder] 9.9 Paying for the SCSI-2 Editor 10. New Business 10.1 SCSI-2 Cable Specification Clarification {Tuesday Morning} 10.2 SCSI-2 Tagged Queuing Clarification (X3T9.2/90-002) [Houlder] 10.3 Addition of note clarifying writing to PEOT (X3T9.2/90-007) [Spence] 10.4 Review of new documents 10.5 Agenda for the Costa Mesa Working Group 10.6 Is a 200 ns Transfer Period "fast" or "slow" [Lohmeyer] 10.7 Optical Memory Model Clarification [Gary Stephens] 10.8 Modifying Actual Retry Count [Racelo] (X3T9.2/90-028) 10.9 Implementors Note on single-initiator selection [Houlder] 11. Review of Action Items 12. Meeting Schedule 12.1 General Working Group Schedule for 1990 12.2 Financing Plenary Meetings 13. Adjournment Meeting Minutes -- X3T9.2 Meeting #86 February 19-20, 1990 -- Austin, TX 1. Opening Remarks John Lohmeyer, the chairman, called the meeting to order at 9:00 a.m., Monday February 19, 1990. He thanked Rhonda Alexi-Dirvin of Motorola for hosting the meeting and he also thanked Classic Conferences for arranging the meeting. As is customary, the people attending introduced themselves. A copy of the X3T9.2 membership list was circulated for attendance and corrections. Copies of the draft agenda and the recent document register were made available to those attending. Information on X3T9.2 and Mailing Subscription forms was made available. 2. Approval of Agenda The draft agenda was accepted with the following additions: 10.7 Optical Memory Model Clarification [Gary Stephens] 10.8 Modifying Actual Retry Count [Racelo] (X3T9.2/90-028) 10.9 Implementors Note on single-initiator selection [Houlder] 3. Attendance and Membership The membership requirements were reviewed. X3 rules permit one vote per organization. An individual from a new organization must attend one plenary meeting as an observer before he/she may apply for voting membership via a letter to the chairman of X3T9.2. The individual may vote at the second plenary meeting. Working group meetings do not count toward attendance requirements. The chairman indicated that since the last meeting, the following membership changes had occurred: Beth Stephens replaced Ishtiyaq Syed as the Cipher/Optimem principal; Stephen Fitzgerald is now the principal and Roger Derr is now the alternate for Eastman Kodak Co.; Paul Anderson has become an additional alternate for IBM Corp.; William F. Alarcon has replaced Dean Wilson as the JAE principal; and Jim Harper and Todd Putnam of Optotech were both terminated after jeopardy letters to them were returned marked "moved and left no address". Visqus joined X3T9.2 at the meeting with James Patton as the principal. In addition to Optotech, 7 organizations were terminated for non-attendance (see 3.1 below) so X3T9.2 now has 67 voting organizations down from 74 at the last meeting. Enclosure (1) is the list of attendees at the meeting. Enclosure (2) is the X3T9.2 membership changes since the last minutes and enclosure (3) is the current X3T9.2 membership list. 3.1 Roll Call of Members in Jeopardy The chairman said he had sent 65 jeopardy letters to 21 organizations: ACT Technology, Advanced Micro Devices, Archive Corp., AT&T, Cipher/Optimem, Cirrus Logic Inc., Cygnet Systems, Data General Corp., Datacopy Corp., DDC Pertec, DPT, Flexstar, Inc., ITT Cannon, JAE, NEC, Optotech, Inc., Quantum Corp., Scientific Micro Systems, Sun Microsystems, Inc., Tandem Computer Inc., and Technology Forums, Ltd. The letters said that these organizations had failed to attend two of the last three plenary meetings and that their membership would be terminated unless they attended the February plenary meeting. The letters also informed these people of the committee's ability to retain their membership under special circumstances in spite of their failure to attend. Larry Lamers moved and John Lohmeyer seconded that the Cipher/Optimem membership be retained because their only member is pregnant and is unable to travel. The motion failed: 6 Yes, 23 No, and 13 Abstained. Gene Milligan moved and Bill Spence seconded that the Cipher/Optimem membership be re-established at the next meeting attended by a Cipher/Optimem member. The motion passed: 21 Yes and 5 No. The chairman presented a letter from Nathan Lee of ACT Technology (X3T9.2/90-029) requesting that the ACT Technology membership be retained. John Lohmeyer moved and Jim Schuessler seconded that the ACT Technology membership be retained. The motion failed: 4 Yes, 25 No, and 11 Abstained. Members were present from all of the organizations in jeopardy except: ACT Technology, Archive Corp., Cipher/Optimem, Cygnet Systems, ITT Cannon, Optotech, Inc., Quantum Corp., and Technology Forums, Ltd. The principals and alternates from the non-attending organizations were changed to observer status. 4. Approval of Minutes - December Meeting San Diego, CA (X3T9.2/89-149) In section 10.2 of the December minutes it was incorrectly reported that Don Peterson of Ciprico read a corporate position letter opposing the proposed addition [of the P Cable to SCSI-2]. Kurt Witte actually read the letter which was written by G. Crow. In section 6.1 there was a grammatical error noted by Gene Milligan. The 'a' will be deleted. The minutes were approved as corrected. The corrected minutes will be posted on the SCSI Bulletin Board System, but will not be re-distributed. 5. Document Distribution The chairman noted that once again, Katrina Gray of the X3 Secretariat had distributed the mailing promptly. Unfortunately, the 3-hole punch was again omitted. He said that he would include a reminder on the transmittal forms for subsequent mailings. This should help insure the 3-hole punch is not forgotten. Members who have any problems with their mailing subscription should deal directly with Katrina at (202) 626-5741. John Lohmeyer requested that all documents for the March mailing be sent to him before March 19, 1990. The following new or revised documents were distributed and/or discussed at the meeting: Document Doc Date Author Description of Document ------------- -------- --------------- --------------------------------------- X3T9.2/90-27 1/24/90 B. Berg SCSI-2 Public Review Comment #7 (re: Suggested Improvements) X3T9.2/90-28 2/2/90 M. Racelo Modifying Actual Retry Count/Adding Unrecorded Block Count in Buffer X3T9.2/90-29 2/8/90 N. Lee Request that Act Technology membership in X3T9.2 be retained X3T9.2/90-30 2/13/90 E. Tausheck SCSI-2 Public Review Comment #9 (re: AEN Operation) X3T9.2/90-33 2/15/90 Pfleg and SCSI-2 Public Review Comment #10 (re: Herron Ribbon contact connector) X3T9.2/90-34 2/12/90 D. Allan Ltr listing additional candidates for X3T9 meeting planners X3T9.2/90-35 2/23/90 D. Shoemaker Response to SCSI-2 PR Comment #2 (see 89-158) X3T9.2/90-36 2/23/90 D. Shoemaker Response to SCSI-2 PR Comment #3 (see 89-140) X3T9.2/90-37 2/23/90 D. Shoemaker Response to SCSI-2 PR Comment #4 (see 89-144) X3T9.2/90-38 2/23/90 D. Shoemaker Response to SCSI-2 PR Comment #5 (see 89-152) X3T9.2/90-39 2/23/90 D. Shoemaker Response to SCSI-2 PR Comment #6 (see 90-008) X3T9.2/90-40 2/23/90 D. Shoemaker Response to SCSI-2 PR Comments #7 and 8 (see 90-027 & 90-024) X3T9.2/90-41 2/23/90 D. Shoemaker Response to SCSI-2 PR Comment #9 (see 90-030) X3T9.2/90-42 2/23/90 D. Shoemaker Response to SCSI-2 PR Comment #10 (see 90-033) X3T9.2/90-43 2/15/90 K. Chan Shielded Cable Evaluation 5.1 1990 Document Subscription Fees The chairman said that the subscription fees for X3T9.2 had increased from $110 in 1989 to $150 in 1990. The subscription fee is based on the actual costs from the prior year. The actual costs for the 1989 mailings exceeded $110 per person. A subscription form was included near the front of the January mailing and additional copies were available at the meeting. Members must return this form with payment before March 19 in order to receive the March mailing. 6. Liaison Reports 6.1 ISO [Milligan] Gene Milligan, the X3T9 International Representative, presented the following report on ISO activities. "The reorganization of the former IEC/ISO JTC 1/SC 13 into SC 25 and WG 4 has caused a temporary delay in the processing of some documents. There is also the potential for a permanent delay on all pending documents. The temporary delay was caused by the need for the former SC 13 Secretariat to concentrate on establishing the new SC 25 Secretariat. Dr. Kovacs of DIN has been installed as the WG 4 Secretariat. He and I have exchanged letters covering open items on numerous documents. It is expected that the documents will now resume a normal flow. Dr. Kovacs has also been designated as the Convener of WG 4. For a few isolated documents such as the FDDI HRC there was a concurrent temporary delay due to an error in the minutes of the Hellerup meeting. The minutes had transposed the references to some of the documents. The potential for a longer delay is that there is a possibility of having both a WG 4 letter ballot and a SC 25 letter ballot. We will attempt to get this held or reduced to one letter ballot. A WG 4 letter ballot is desirable from the standpoint of the votes coming from the most pertinent representatives. The SC 25 letter ballot brings with it the potential for the least pertinent representatives. The ESDI DP 10222 letter ballot passed 15:0:4:9 (These results include a yes vote from China and an abstention from South Africa who are Observer nations whose votes are academic. The West Germany, Japan, USA, and USSR letter ballots included comments. The Japan and USSR comments appear to be editorial. The IPI-2 Tape DP 9318-5 letter ballot closes this month. As a result of the above exchange of letters with the WG 4 Secretariat, the officers of SC 25 agreed to issue DP letter ballots for FDDI SMF-PMD DP 9314-4 and FDDI HRC DP 9314-5 concurrent with the processing of approval for NWIs for these sublayers. The officers are not certain that the ISO Central Secretariat will go along with this action. The X3T9 IR has submitted a NWI proposal for the FDDI-HRC. X3T9.5 is considering the additional comments such as a reported problem concerning a token release condition relative to FDDI MAC IS 9314-2. They are also reviewing the additional FDDI PMD IS 9314-3 comments. Some of these comments could result in a future revision of these standards. The various IPI DIS 9318 documents have been the subject of editorial comments exchanged directly between the ISO Central Secretariat's editor and the project editors. The SC 25 officers also, I believe, have agreed to issue a DP 10288 SCSI-2 letter ballot based upon Revision 10B. Their wording seemed to imply a possibility that the ISO Central Secretariat might abort the letter ballot based upon lack of an ISO style document. The X3T9 IR has also submitted a NWI and a copy of the document for the High Performance Parallel Interface (HPPI) Physical Layer (PL) to SC 25 WG 4 for further processing. I have also indicated to Dr. Kovacs that there have been comments in the USA that the June may be too soon to have a productive WG 4 meeting. I have also let him know that X3T9 would address these comments at its February meeting. During their ad hoc meeting last week, the SC 25 officers agreed that June may turn out to be too early. They informed me that they would concur with a USA request to cancel the June meeting and hold a WG 4 meeting in January 1991 contiguous with the SC 25 meeting." 6.2 IT8 There was no report. 6.3 SCSI-2 Common Access Method Committee Report [Allan] Dal Allan reported that there has been one ATA meeting since the last plenary meeting. The ATA document is currently at revision level 1.8. This revision includes the several changes from the last ATA meeting. The format and style work has been done to get the document looking like a standard. It is expected that the Project Proposal for ATA will be submitted at the next plenary meeting. The CAM committee has had two meetings since the last plenary. There has been significant work done by the Unix OSD working group. Several issues have been addressed including reset management and queue management. Resets can affect device locks (reservations) which must be re- established and queues at all levels (O.S., SIM, and device) must be recovered. Based on requests for CAM documents, the interest in CAM continues to build, especially among the major OEMs. 6.4 Fiber Channel [Allan] Dal Allan reported that there have been three Fiber Channel working group meetings since the last plenary meeting. Two physical interfaces were proposed by IBM, one using long-wave single- mode fiber at 100 Mbs at up to 2 kilometers and another at up to 10 kilometers. The long-wave single-mode fiber and a short-wave multi-mode fiber could be used for 25 Mbs up to 2 kilometers. These proposals were well received. The short-wave, 50 micron multi-mode fiber at 100 Mbs up to 1 kilometer, was presented and demonstrated. This IBM proposal offers the potential for a low-cost ($10+) connection by using a combination of CD-type lasers and plastic fiber. The Fabric working group is working on what services must be provided to establish connections, and what kinds of services exist (e.g., there were four types of broadcast capability described). Other issues on connections concerned the characteristics of transfer such as maximum number of bytes, fixed frames only, and 2(n) boundaries or 8n byte transfers. Switching of frames is a multiplexing issue and the difficulties involved in multiplexing on frame boundaries or exchange boundaries or connection boundaries is an issue, as they affect the ability of hardware. Rich Taborek of Amdahl described an application interface between FC-3 and FC-2 in order to transport the Block Multiplexer protocol over the Fiber Channel. This defined what could become a generic set of primitives for FC-3 users. A number of companies described their intended uses for the Fiber Channel and, not surprisingly, these were wide ranging and diverse. 6.5 X3B7.1 Report There was no X3B7.1 report, however Doug Pickford came anticipating a diagnostic command set (DCS) meeting. The plenary members were not in favor of such a meeting during the plenary due to the short notice. Having DCS discussed as an agenda item during the next working group was deemed highly desirable. The DCS discussion was scheduled for Wednesday morning, March 7, 1990 at the Costa Mesa working group meeting. (Also see agenda item 9.6) 7. Review of Old Action Items 1. Dal Allan will incorporate editorial changes into the ESDI document. Complete. 2. Larry Lamers will incorporate 89-145 and 89-146 into the SCSI-2 document. Carry over (Larry expected to complete this the following week). 3. Larry Lamers will add a note concerning alternative 16-bit and 32-bit solutions and the possible future deletion of the B cable into the SCSI-2 document. Carry over (Larry expected to complete this the following week). 3. George Penokie will revise the 89-094 and 89-150 documents. Complete. 4. Mark Pearson will investigate the public review comment on scanner devices. Complete. 5. Larry Lamers will chair the Cable Impedance Special Working Group Meeting January 8, 1990. Complete. 8. Working Group and/or Project Status Reports 8.1 ESDI [Allan] The ESDI standard has been approved and is awaiting publication. Harvey Rosenfeld (ANSI) expects to assign an editor (possibly himself) shortly. In the meantime, ESDI has entered the "blackout" period where CBEMA has made the draft standard unavailable from Global Engineering Documents (because it has been approved) and ANSI is unable to sell it (because it is not published). John Lohmeyer accepted an action item to bring this issue up (again) with X3T9. Gene Milligan stated that Global Engineering will continue to sell the documents through public review, but will not deliver the document until it becomes a standard. ANSI is insisting on the protocol to protect their revenue stream. Gene Milligan suggested that those it may be possible for those ordering the document during the blackout period pay a document fee that covers the public review copy and the official standard, and get both. The public review copy would be available in a timely manner, and the official standard would be delivered when available. This would address the revenue issue, however the logistics could be a problem. Chairman's Note: This issue apparently was resolved prior to the X3T9 meeting -- Global Engineering Documents is again accepting ESDI orders. Gene Milligan stated that there have been additional comments from the USSR. These comments are editorial and will be dealt with during the ANSI editing period. 8.2 SCSI General Working Group (X3T9.2/90-009) A working group meeting was held January 9-10, 1990 in San Jose, CA hosted by Bob Snively of Sun Microsystems. There were 45 people present. George Penokie had 5 new and/or revised documents relating to 16-bit single-cable proposal and ways to extend it to 32 bits. The current cables are: A Cable - 50 conductors. The SCSI-1/SCSI-2 8-bit cable. B Cable - 68 conductors. A second cable to expand the data path to 16 or 32 bits. The proposed cables are: P Cable - 68 conductors. A 16-bit single-cable with the signals from the A cable on the center 50 pins. It is expected that one can mix A and P devices with an appropriate adapter. Q Cable - 68 conductors. This cable extends the P cable to 32 bits. The pin assignments are the same as for the P cable, but the control signals, except REQ and ACK, are not used. L Cable - 110 conductors. A 32-bit single-cable with the signals from the P cable on the center 68 pins. It is expected that one can mix A, P, and L devices with appropriate adapters. There was considerable discussion over the P/Q verses the P/L methods of expanding to 32 bits with no resolution. The working group prepared draft responses to the SCSI-2 public review comments which were available a that time (see agenda item 9.1). Gary Stephens' presented his 89-130 and 89-133 documents on packetizing SCSI and multiple-porting, respectively. We discovered that terminology was a major impediment. The working group recommended that Bill Spence's note about writing to PEOT (90-007) be accepted for inclusion in SCSI-2 with some minor modifications. It is the working group's opinion the the change is non- substantive. Gerry Houlder brought up two issues concerning SCSI-2, one regarding whether tagged queuing is on a per-initiator basis (see agenda item 10.2) and one regarding how a SCSI-2 target should operate when put in SCSI-1 mode (see agenda item 9.8). The working group agreed with several recommendations from the cable working group and recommends that several non-substantive changes be included in SCSI-2. One of these changes would be to relax the 90 ohm minimum cable impedance from a requirement to a recommendation (see agenda item 10.1). Gene Milligan submitted a SCSI-3 proposal to add several caching control parameters (90-021). 8.3 Report on Cable Impedance Working Group Meeting (X3T9.2/90-23) [Lamers] Larry Lamers reported that there was discussion about testing methods, particularly, crosstalk measurements. More testing is being done. There were several recommendations made to the SCSI general working group. See item 8.2 and 90-023 for details. 9. Old Business 9.1 Resolution of BSR X3.131-198x (SCSI-2) Public Review Comments John presented slides showing the public review comments received as of February 16 and draft letters resolving and/or rejecting the comments. A total of 10 comments were received. Comment #2 Mark Pearson enumerated the issues raised by Philip Joslin. Bill Spence argued against any further changes to the SCSI-2 document, citing the delays encountered if such changes are made. Mark Pearson moved and Bill Spence seconded that X3T9.2/90-035 be accepted as the response to public review comment #2. The motion passed: 38 Yes, 0 No. Comment #3 Gene Milligan moved and Bill Medlinski seconded that X3T9.2/90-036 be accepted as the response to public review comment #3. The motion passed: 42 Yes, 2 No. Comment #4 Bill Medlinski moved and Ken Post seconded that X3T9.2/90-037 be accepted as the response to public review comment #4. The motion passed: 39 Yes, 0 No. Comment #5 Dal Allan moved and Peter Johansson seconded that X3T9.2/90-038 be accepted as the response to public review comment #5. The motion passed: 43 Yes, 0 No. Comment #6 Bob Herron stated that he supported Mr. Graczyk position that there is confusion in the industry. There is also emerging consensus at the international level for a ribbon connector. Bill Spence gave his standard response regarding delaying the standard. Bill Spence moved and Bill Medlinski seconded that X3T9.2/90-039 be accepted as the response to public review comment #6. The motion passed: 40 Yes, 2 No. Comments #7 & #8 Larry Lamers moved and Dave Filpus seconded that X3T9.2/90-040 be accepted as the response to public review comment #7 and #8. The motion passed: 39 Yes, 0 No. Comment #9 Larry Lamers moved and George Penokie seconded that X3T9.2/90-041 be accepted as the response to public review comment #9. The motion passed: 39 Yes, 0 No. Comment #10 Bill Spence responded to the 3M comment that at the time of connector selection the ribbon connector folks could not reach consensus on a single intermatable ribbon connector. That was the reason they failed to be selected. Bob Herron responded that it may have been the case then, it is not the case now. Gene Milligan moved and Larry Lamers seconded that X3T9.2/90-042, modified to delete paragraphs 2, 3, 4, and 5, be accepted as the response to public review comment #10. The motion passed: 43 Yes, 0 No. John Lohmeyer stated that Larry Lamers and he planned to prepare SCSI-2 Rev 10c the following week and it should be in the March mailing. At the April plenary meeting, he expected a motion to transmit SCSI-2 Rev 10c for the X3 letter ballot. 9.2 Single-cable 16-bit SCSI (89-94, 89-150, 90-004, 90-005, 90-006) George Penokie pointed out editorial corrections and recommendations that he has made to documents 90-005 and 90-006. All prior documents related to single-cable 16-bit SCSI are obsolete. Documents 90-005 and 90-006 are the active documents. The REQB/ACKB lines were accidentally omitted from the Q cable. On the single-ended pin assignments, contact 63 is REQB and contact 58 is ACKB. On the differential pin assignments, contact 57 is -ACKB, contact 62 is -REQB, contact 23 is +ACKB, and contact 28 is +REQB. The L cable grounds on connector pin 1, 56, 55, 110 have been changed to TERMPWR to get 10 TERMPWR lines. This should be sufficient even for smaller wire gauges. John Lohmeyer requested that George add some explanation of how to deal with the reserved lines in converters. The question of potential skewing problems when mixing A, P, and L cables was also raised. This area needs further work. 9.3 SCSI Transceivers [Murdock] There was no new information available. This item was placed on the Costa Mesa agenda. 9.4 Packetized SCSI (X3T9.2/89-130) [Stephens] Gary Stephens was not in attendance. Dal Allan commented that packetizing SCSI is a necessary step to move the SCSI protocol onto Fiber Channel. The Fiber Channel group has assigned Dal as the coordinator for the SCSI command set. Other individuals are coordinating IPI and HPPI. 9.5 Multi-Ported SCSI (X3T9.2/89-133) [Stephens] Gary Stephens was not in attendance. Dal Allan expounded on the terminology issue. He suggested "super thing" and "service access point" (SAP) to clarify initiator and target roles. A SAP could operate in either role. Since Gary Stephens was absent no resolution was reached. 9.6 Diagnostic Command Set (X3T9.2/90-022) Doug Pickford reported on the model developed for diagnostics. He presented the following foil: 1) Establish the need for diagnostics, i.e., creating the support within the committee 2) Agree to a functional diagnostic model which is truly not dependent on SCSI 3) Use the SSWG to "SCSI-ize" the functional model, then make a formal proposal to the committee A reference point document (X3T9.2/90-022) exists which mixes functional objectives and operational specifics. This may have lead to the current confusion. Gene Milligan stated that a wish list for a model was enumerated, but not established as 2) above indicates. Doug Pickford intends to revise his document to separate 1) and 2) above. A variable length CDB may resolve the DATA IN - DATA OUT phases in one DATA phase issue. However variable-length CDBs may be a problem for some third-generation protocol chips. 9.7 Call for Volunteers -- X3T9.2 Chairman and Vice Chairman (89-125) At the time of the meeting the results of the SMC letter ballots were not known. However, subsequent to the meeting the results were available. The officers of X3T9.2 for the February 1990 to February 1993 term are: Chair: John Lohmeyer of NCR Corporation; Vice-Chair: Dal Allan of ENDL; Secretary: Larry Lamers of Maxtor Corporation. 9.8 SCSI-1 and CCS Emulation by SCSI-2 Devices (X3T9.2/90-003R1) [Houlder] Gerry Houlder reviewed the proposal he presented at the working group on how a SCSI-2 device will deal with the CHANGE DEFINITION command. There were several questions concerning specifics of how SCSI-1 and CCS emulations would work. What does a SCSI-2 target turn off to operate as a SCSI-1 target? What can a SCSI-2 target do that might break the SCSI-1 initiator? Gerry Houlder presented a draft of a non-substantive implementors note. The committee felt that such a note was beneficial and assisted Gerry in fine tuning the wording. Gerry Houlder moved and George Penokie seconded that the proposed implementors note be included in SCSI-2 to educate readers on the potential effects of the CHANGE DEFINITION command. The motion passed; 28 yes, 1 no, and 2 abstentions. 9.9 Paying for the SCSI-2 Editor John Lohmeyer stated that he had received a questionnaire from Jean-Paul Emard of the X3 Secretariat on the establishment of Technical Committee escrow accounts. There is tentative permission for Technical Committees to set up escrow accounts for collecting money for various activities. Del Shoemaker stated that X3 is in the process of establishing the rules to deal with collecting money and using it. The question was raised of why should we do the final editing? Why not let ISO or ANSI do it? Dal Allan answered with the statement that there is a strong likelihood that the ISO or ANSI editor may induce changes in the document that change the meaning. X3B11 has had several negative experiences with ISO editing. There is also a significantly longer publishing time if ISO or ANSI must do it. Editing tools and publishing tools are not necessarily the same. This causes problems with the development of standards and publishing these standards. The needed funds could have been included in the subscription fee. However the timing was not appropriate to do this in 1990. Del Shoemaker stated that a special assessment could be made to the subscribers. A show of hands indicated that about 15 of the people present felt their companies might be willing to contribute $500 toward hiring an editor to do the SCSI-2 editing. 10. New Business 10.1 SCSI-2 Cable Specification Clarification {Tuesday Morning} Due to the length of time needed for completing testing of cross-talk measurements the March 5, 1990 Cable Working Group was canceled. The next cable working group will meet April 23, 1990 in St. Petersburg Beach, FL following the SCSI plenary meeting. The exact time will be determined by the loading of the SCSI plenary meeting agenda. Following this meeting the Cable working group will again meet on May 7, 1990 in Providence, RI, starting at 9:00 AM. Larry Lamers moved and Bob Bellino seconded that the 'shall' in section 4.2 paragraph 1 be changed to 'should' as a non-substantive change. The effect of this motion is to relax the 90 ohm minimum characteristic impedance for single-ended cable. The motion passed: 40 Yes, 2 No, and 3 abstentions . 10.2 SCSI-2 Tagged Queuing Clarification (X3T9.2/90-002) [Houlder] John Lohmeyer reviewed the proposed changes to queued I/O processes. The change is to delete the last sentence of section 6.8 paragraph 2 and replace it with: "A target may be capable of both methods of queuing, but only one method may be used by a given initiator at one time. Other initiators on the bus may choose the other queuing method; in this case, the target may manage both types of queued commands." Document X3T9.2/90-002R0 contains the justification of the change. A further change to section 7.3.3.1 paragraph 4 is proposed. The new wording is: " A value of zero in this field specifies that the target shall order the actual execution sequence of the queued commands from each initiator such that data integrity is maintained for that initiator." The value of 0h will be re-labeled "Restricted Re-ordering". Gerry Houlder moved and Dal Allan seconded that the proposed wording changes be accepted as a non-substantive change reflecting the original intent of the committee. The motion passed, 33 yes, 0 no, and 1 abstained. 10.3 Addition of note clarifying writing to PEOT (X3T9.2/90-007) [Spence] Bill Spence moved and John Lohmeyer seconded that the revised note clarifying writing to PEOT be added as a non-substantive change. The motion passed 29 yes, 0 no, and 0 abstentions. 10.4 Review of new documents Modifying Actual Retry Count (X3T9.2/90-028R0) [Racelo] - see item 10.8 for details. Shielded Cable Evaluation (X3T9.2/90-043R0) [Chan] - discussion of this report will occur at the next Cable Working Group meeting. See item 10.1. 10.5 Agenda for the Costa Mesa Working Group 1. Proposed REQUEST TEXT SENSE Command (89-160) 2. Dealing with queued commands during immediate conditions [Penokie] 3. Adding Unrecorded Blocks in Buffer Count field [Racelo] 4. Review SCSI-2 rev 10c 5. Caching Proposal (90-021) [Milligan] 6. Diagnostic Command Set [90-022] [Pickford] 7. Differential Transceivers [Murdock] 8. Packetized SCSI [Stephens] 9. Multi-ported SCSI [Stephens] 10. SCSI-3 document structure [Lamers] 11. 16/32-bit cable issues [Penokie] 10.6 Is a 200 ns Transfer Period "fast" or "slow" [Lohmeyer] The current SCSI-2 draft standard is not clear on whether a 200 ns. transfer period should use "fast" or "slow" timing parameters. John recommended that the wording be clarified so that 200 ns uses the "slow" timing parameters, which is consistent with SCSI-1. John Lohmeyer moved and Gerry Houlder seconded that the words "or equal to" be added as a non-substantive change to the second sentence of the first paragraph of section 4.8 to clarify that a 200 ns transfer period is not a fast data transfer. Gene Milligan pointed out that another phrase in the same paragraph, "between 100 ns and 200 ns", should be revised to say less than 200 ns as part of the clarification. This change was included in the motion. The motion passed 31 Yes, 0 No, and 0 Abstained. 10.7 Optical Memory Model Clarification [Gary Stephens] George Penokie moved and Bill Spence seconded that a sentence be added to the optical memory model referencing appropriate media standards for defect management. The motion passed 31 yes, 0 no, and 0 abstentions. 10.8 Modifying Actual Retry Count [Racelo] (X3T9.2/90-028) Mike Racelo presented two alternative proposals for adding an Unrecorded Blocks in Buffer Count Field to REQUEST SENSE data. One proposal modifies the sense-key specific field to include an unrecorded blocks in buffer count field. Another proposal is to add a new four-byte field that would allow dealing with larger numbers. This item was remanded to the working group for further discussion. 10.9 Implementors Note on single-initiator selection [Houlder] Gerry Houlder proposed a modification of the implementors note in 5.1.3 to provide guidance during SCSI-1 emulations. The proposed wording was: "If the target chooses to support the single initiator or selection without attention options of SCSI-1, it may respond to selection as described in the SCSI-1 standard." Peter Johansson moved and Gerry Houlder seconded that the existing implementors note be replaced with the proposed implementors note. The motion passed 24 yes, 4 no, and 0 abstentions. 11. Review of Action Items 1. Larry Lamers will incorporate 89-145 and 89-146 into the SCSI-2 document. 2. Larry Lamers will add a note concerning alternative 16-bit and 32-bit solutions and the possible future deletion of the B cable into the SCSI-2 document. 3. John Lohmeyer will ask X3T9 to address the "blackout" period issue on availability of committee draft standards while they await publication. 4. Larry Lamers and John Lohmeyer will prepare SCSI-2 Rev 10c for the next committee mailing. 5. John Lohmeyer will take the public review responses to X3T9 for appropriate action. 6. John Lohmeyer will correct correct the minutes of the San Diego meeting (89-149). 7. John Lohmeyer will send a set of mailing labels listing the January Cable Working Group meeting attendees to Peter Blackford. 8. Peter Blackford will mail a letters to X3T9.2 participants of the cable working group stating that the March 5, 1990 cable working group is canceled. 12. Meeting Schedule The next meeting of X3T9.2 will be April 23-24, 1990 at the St. Petersburg Hilton Inn and Towers (813) 894-5000 hosted by AMP. Please mention the X3T9-AMP meetings when making reservations to receive the group room rate of $78.12 single or $80.00 double, plus tax. The cut-off date for reservations is March 30, 1990. The plenary meeting schedule is: Date Location Host -------------------- ------------------------ --------------------- April 23-24, 1990 St. Petersburg Beach, FL AMP June 18-19, 1990 Wichita, KS NCR August 20-21, 1990 Denver, CO Hughes (*) October 15-16, 1990 Ft. Lauderdale, FL Boeing (*) December 3-4, 1990 San Jose, CA AMD (*) February 18-19, 1991 Dallas, TX EDS April 22-23, 1991 St. Petersburg, FL AMP June 17-18, 1991 Minneapolis, MN Stanatek August 19-20, 1991 Vancouver, BC tbd or Irvine, CA Western Digital October 14-15, 1991 Atlanta, GA AT&T December 9-10, 1991 Phoenix, AZ DEC (*) These meeting locations have changed and were selected at the February 23, 1990 X3T9 meeting. These meetings are being arranged by the individual hosts without Classic Conferences. Please do not call Classic Conferences regarding these meetings. A meeting announcement for the August meeting will be included in the May committee mailing. 12.1 General Working Group Schedule for 1990 The Working Group Schedule is as follows: Date Location Host Comments ------------------- -------------- --------------- ---------------- Mar 5-9, 1990 Costa Mesa, CA Western Digital May 7-11, 1990 Providence, RI Astro Cable Jul 9-13, 1990 Rochester, MN IBM Sep 4-7, 1990 Denver, CO Storagetek {no CAM meeting} Oct 29-Nov 2, 1990 Austin, TX TI These week-long meetings are to be divided as follows: Monday SCSI CAM Committee (except September 1990) Tuesday-Wednesday SCSI Working Group Thursday-Friday Fiber Channel 12.2 Financing Plenary Meetings Bob Fink, X3T9 Vice-Chairman, made a presentation on his proposal for financing future meetings. The current system bundles the cost of meeting rooms, AV equipment, and planners fees into the hotel rate. This system is getting increasingly difficult to manage. Bob proposed a bundled fee system at the December X3T9 meeting. As a result of that proposal each task group is being given the presentation for their consideration and education. Bob listed some of the problems with the current meeting system: The best deal cannot be arranged: Hotels pad rate for protection Hotels do not like the system; it is not standard and puts them at risk Attendees do not like the system: Confusion over what is in bundle Why are room rates $20-30 above normal corporate rates? Government attendees often cannot justify the cost Hosts do no like the system: Host assumes liability which is often very difficult to arrange Host has many hassles being involved in the process Bob presented the advantages of a Meeting Fee System: Charge a per-meeting fee based on number of days in meeting Proposed fee of $20 per day attended No charge for evening meetings No dual charge for overlapping meetings No host required Criteria for hotel deal: Best sleeping room deal possible Meetings rooms free Best AV and break deal possible Hotel quote package would be developed based on the IEEE 802 versions A bonded X3T9 treasurer will be set up to sign contracts and handle money. The August meeting is in jeopardy due to the current meeting planner refusing to do further business on the current basis. Bob presented the cost figures from the August 1989 meeting which was hosted by Del Shoemaker and from the December 1989 meeting which was hosted by Fred Meadows: Colorado Springs in August 1989 Room $58.00 Tax 5.05 Meeting room rental $3.00 AV rental 1.10 am break 2.50 gratuity 0.40 tax 0.16 pm break 2.00 gratuity 0.32 tax 0.12 planner fee 10.00 ------------------ ----- Total 82.66 San Diego in December 1989 Room 76.00 Tax 6.84 Room package 23.00 tax 1.61 ------------------ ----- 107.45 Bill Spence stated that Classic Conferences has been only involved since 1987. His experience from before Classic Conferences was that it was easier to deal with the hotels than with Classic Conferences. John Lohmeyer stated that the original reason for using meeting planners was that it would give us continuity of setup and it was expected that the meeting planners would recoup their fees by negotiating better rates with the hotels. Dal Allan stated that there are other methods of dealing with the risk factors and compensation within the accepted system. His personal experience from setting up meetings this year is that it is possible to get back to a more normal fee structure. The X3H3 meeting fee is $50-60 for a five-day meeting. X3B1 has occasionally collected a meeting fee. X3T9.3 did not have a violent objection to a fee system. Location was not important, but there was objection to holding all meetings in a central location. 13. Adjournment The meeting was adjourned at 1:00 p.m. Tuesday February 20, 1990. Meeting Attendees - Enclosure (1) Name Stat Organization ------------------------------ ---- ------------------------------ Mr. Wayne E. Roen P 3M Company Mr. Robert C. Herron A 3M Company Mr. George T. Hahn Jr. A Adaptec, Inc. Mr. Patrick E. Pejack A Adaptec, Inc. Mr. Percy R. Aria A Advanced Micro Devices Mr. Charles Brill P AMP, Inc. Mr. Bob Whiteman A AMP, Inc. Mr. Michael Wingard P Amphenol Interconnect Mr. Jan V. Dedek P Ancot Corp. Mr. Peter M. Blackford P Astro Cable Company Mr. David Harms A AT&T Mr. Victor F. Host O Aura Electronics Mr. Christian Mollard O BULL Systems Mr. Wills Xu O C&M Corp. Mr. John Guennewig P Cinch Connector Mr. Bharat Shah P Cipher Data Products, Inc. Mr. Robert Kellert P Cirrus Logic Inc. Mr. Peter Johansson P Congruent Software, Inc. Mr. Wayne Sanderson P Control Data Corp. Mr. Mark P. Pearson P Datacopy Corp. Mr. Mike Racelo P DDC Pertec Mr. Rudy Stalzer A Digital Equipment Corp. Mr. Douglas Hagerman A Digital Equipment Corp. Mr. Del Shoemaker L Digital Equipment Corp. Mr. Tom Treadway A DPT Mr. John D. Walden P E.I. DuPont Inc. Mr. Stephen L. Clark A E.I. DuPont Inc. Mr. Stephen Fitzgerald P Eastman Kodak Co. Mr. Chuck Micalizzi A Emulex Corp. Mr. I. Dal Allan P ENDL Mr. Nick Seroff P Flexstar, Inc. Mr. Robert Liu P Fujitsu America, Inc. Mr. John C. Onia A Fujitsu America, Inc. Mr. Bob Thornton O Fujitsu Components of America Mr. Kenneth Post P Future Domain Mr. Kurt Chan P Hewlett Packard Co. Mr. Oscar Kornblum A Hirose Electric U.S.A. Mr. Ed Armstrong V Hitachi Cable Manchester Mr. John Kane V Hitachi Cable Manchester Mr. Brian Griggs V Hitachi Cable Manchester Dr. Sam Karunanithi P Hitachi Micro Systems, Inc. Mr. George Penokie P IBM Corp. Mr. Tony Salthouse A ICL Mr. Geoff Barton P Iomega Corp. Mr. Gary Solomon V JAE Mr. Robert Bellino P Madison Cable Corp. Mr. Lawrence J. Lamers P Maxtor Corp. Mr. Bob Masterson P Methode Electronics, Inc. Mr. John Spongr A Mitsubishi Electronics Amer Mr. James Schuessler P National Semiconductor Mr. Gary Murdock S National Semiconductor Meeting Attendees - Enclosure (1) Name Stat Organization ------------------------------ ---- ------------------------------ Mr. John Lohmeyer P NCR Corp. Mr. Bruce Anderson P NEC Tech. Inc. Mr. David Filpus P Northern Telecom, Inc. Mr. Dennis P. Trupski P Olivetti Mr. Bill Medlinski A Panasonic, MECA-BEC Mr. Dominic Turley P Panduit Corp. Dr. Tetsuro Motoyoma P Ricoh Corporation Mr. Gene Milligan O Seagate Technology Mr. Gerald Houlder O Seagate Technology Mr. Fred Burgess S Seagate Technology Mr. Bob Reid P SMS Technology, Inc. Ms. Rita Lin P Sony Corp. of America Mr. Dexter Anderson O Sun Microsystems, Inc. Mr. Duc Pham P Tandem Computer Inc. Mr. Mike Fishleih V TESSCO Mr. D. W. Spence P Texas Instruments Mr. Clarence Lewis O Texas Instruments Mr. Edward R. Schurig O Texas Instruments Mr. Harvey Waltersdorf P Thomas & Betts Mr. Peter Dougherty P UNISYS Mr. James Patton P Visqus Mr. Doug Pickford A Western Digital Mr. Greg Mart A Zenith Data Systems 74 people present Status Key: P - Principal Member A - Alternate Member L - Liaison O - Observer S,V - Visitor