PDP-11 vs SCSI Опции

[SuperMax]

Консолидирую всю информацию по SCSI и PDP-11

Контроллеры SCSI для QBUS

Код

M5976-AA    KZQSA       Q   Qbus to SCSI adapter

M5976-SA    KZQSA-SA    Q   Qbus to SCSI adapter (for BA200/400 enclosures)
M5976-SA                    with S-box handle

M5977-AA    RQZX1       Q   Qbus to SCSI disk (MSCP) and tape (TMSCP) adapter

            MQ759       Q   Dilog disk/tape adapter. Emulates MSCP & TMSCP.
                            SA450 port, RX33/50 compatible, 7 x SCSI devices
                            + 2 SA450 floppy drives

            SCDC-11     Q   Andromeda SCSI controller.  Emulates MSCP.


            SQ3703A     Q   Dilog SCSI tape adapter. Emulates TMSCP. BA4000.
                            Replaced by SQ3709

            SQ3706A     Q   Dilog SCSI disk adapter. Emulates MSCP. BA4000.
                            Replaced by SQ3709

            SQ3709      Q   Dilog SCSI disk/tape adapter. Emulates MSCP
                            and TMSCP.  7 x SCSI devices, BA4000. Replaces
                            SQ3703A & SQ3706A

            SQ3723A     Q   Dilog SCSI differential tape adapter. BA4000.
                            Emulates TMSCP. BA4000

            SQ3726A     Q   Dilog SCSI differential disk adapter.
                            Emulates MSCP.

            SQ703A      Q   Dilog SCSI tape adapter. Emulates TMSCP
                            Replaced by SQ739

            SQ706A      Q   Dilog SCSI disk adapter. Emulates MSCP.
                            Replaced by SQ739

            SQ713A      Q   Dilog SCSI differential tape adapter.
                            Emulates TMSCP

            SQ706       Q   Dilog SCSI disk controller for Ramstor 5150

            SQ739       Q   Dilog disk/tape adapter. Emulates MSCP & TMSCP.
                            7 x SCSI devices. Replaces SQ703A and SQ706A

            SU723A      U   Dilog SCSI tape adapter. Emulates TMSCP. 7 drives

            SU726A      U   Dilog SCSI disk adapter. Emulates MSCP. 7 drives

            UC01/LX     Q   Emulex SCSI bus adaptor.  Emulates 1-4 RL01/RL02.
                            22-bit.  Includes BDV11-compatible line-time clock
                            and sockets for bootstrap ROMs and bus terminators.

            UC02        Q   Emulex SCSI bus (ANSI X3T9.2) adaptor.
                            Emulates MSCP controller for 1-4 disks.  22-bit.

            UC03        Q   Emulex SCSI bus adaptor.  Emulates MSCP controller

            UC04        Q   Emulex SCSI bus adaptor.  Emulates MSCP controller

            UC06D       Q   Emulex SCSI bus adaptor.

            UC07D       Q   Emulex single SCSI bus adaptor.

            UC08-2      Q   Emulex dual SCSI bus adaptor.

            UC12        U   Emulex SCSI bus adaptor.  Emulates MSCP controller

            UC13        U   Emulex SCSI bus adaptor.  Emulates MSCP controller

            UC14        U   Emulex SCSI bus adaptor.  Emulates MSCP controller

            QTO         Q   TD Systems SCSI TMSCP tape controller, LSI-11 &
                            VAX config and diagnostic programmes in ROM,
                            NVRAM config settings. Q22.

Ссылки по теме
http://web.frainresearch.org:8080/projects.../3pdiskcntl.php




Сравнение контроллеров по скорости

I did (and published) some benchmarks of SCSI MSCP-emulating
controllers probably a decade ago. And indeed the CMD CQD 440 was the
winner. But they all beat the pants off a RQDX3!

Here are the peak data rates measured for read and write 64
blocks-at-a-time:


Read Write
---------- ----------
Andromeda SCDC 2.298 MB/s 1.131 MB/s
CMD CQD440 2.397 MB/s 1.525 MB/s
CMD CQD220 1.418 MB/s 0.882 MB/s
CMD CQD220A 2.088 MB/s 1.409 MB/s
DEC RQZX1 1.379 MB/s 1.097 MB/s
Viking QDT 0.846 MB/s 0.704 MB/s
DEC RQDX3 0.164 MB/s 0.161 MB/s

The benchmarks were done under RT11FB 5.7 doing 1, 2, 4, 8, 16,
32, and 64 block-at-a-time READW's and WRITW's to 16384-block
data files. A KDJ11B (PDP-11/73) CPU with 2 Megabytes of Clearpoint
non-PMI memory was used for the bencharmks. With the SCSI
controllers a Barracuda 7200 RPM ST15230N drive was used; with
the RQDX3 a RD52 drive was used.

отсюда
https://vmsnet.pdp-11.narkive.com/kfYv0Qt6/...-scsi-interface

[SuperMax]

Полноценная поддержка SCSI появилась в RT11 5.7

New Hardware Support

• From Digital
• • SCSI Controllers
  • • Digital RQZX1
  • Various SCSI Disks
  • • Digital RZ23/26/29 series
  • Various SCSI Tapes
  • • TZ30,TLZ07,TZ87
• Other hardware tested but not SPD Certified
• • SCSI controllers
  • • (e.g. Andromeda SCDC, CMD CQD420 etc)
  • Storage components
  • • SCSI Disks e.g. Seagate 1 & 2 GB, Quantum 1,2,4.3GB
    • SCSI Tapes e.g. DLT, 4mm DAT
    • Removable Disks e.g. ZIP and MO drives
  • Serial line multiplexors
  • • e.g. The Logical Company CCQ1600)

Ссылки по теме
http://www.classiccmp.org/pipermail/cctalk...ber/035345.html