[Info-vax] SCSI question (KZPEA-CX adaptor)

[H Vlems]

On 1 apr, 23:29, JF Mezei <jfmezei.spam... at vaxination.ca> wrote:
> I finally installed a KZPEA-CX adaptor on a DS10L.
>
> I had some adaptor that fitted onto the external plug of the KZPEA-CX
> and provided a standard 50 pin ribbon cable interface.
>
> Plugged in a CD drive (old Sony drive very similar to the RRD42). The
> SRM console would see the drive, get its identity, generate a DKA400:
> device. But couldn't boot from it.
>
> >>>>show dev
> > dka400.4.0.17.0            DKA400        SONY CD-ROM CDU-8003A  1.8f
> > dqa0.0.0.13.0              DQA0                Maxtor 5 3073H6  DAC10SC0
> > dva0.0.0.0.0               DVA0
> > ewa0.0.0.9.0               EWA0              08-00-2B-87-3D-64
> > ewb0.0.0.11.0              EWB0              08-00-2B-87-3D-6D
> > pka0.7.0.17.0              PKA0                  SCSI Bus ID 7  5.57
> >>> run bios pka0 gets me into the card's config program (pretty neat!)
>
> When I "autoconfigure device settings", It does show SCSI ID 4 as:
>
> > ------------------------------SCSI Device Settings------------------------------
>
> >       SCSI ID:  0   1   2   3   4   5   6   7   8   9   10  11  12  13  14  15
> >                +---------------------------------------------------------------+
> >  Enable Device |Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes|
> >  Disconnects OK|Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes|
> >  Check Parity  |Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes|
> >  Negotiate Wide|Yes Yes Yes Yes No  Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes|
> >  Negotiate Sync|Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes|
> >  Tagged Queuing|Yes Yes Yes Yes No  Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes|
> >  Enable LUNs   |Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes|
> >  Sync Offset   |8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8  |
> >  Sync Period   |12  12  12  12  12  12  12  12  12  12  12  12  12  12  12  12 |
> >                +---------------------------------------------------------------+
>
> So it detects that this old SCSI drive is a narrow ("no" to "Negotiate
> Wide") and that it doesn't suport tagged queuing.
>
> However, trying to do a "Verify media" results in it telling me it isn't
> a disk device.
>
> However, booting into VMS:
>
> > $ show dev $10$dka400:/full
>
> > Disk $10$DKA400: (BIKE), device type SONY CD-ROM CDU-8003A, is online, file-
> >     oriented device, shareable, served to cluster via MSCP Server, error logging
> >     is enabled.
>
> >     Error count                    0    Operations completed                  0
> >     Owner process                 ""    Owner UIC                      [SYSTEM]
> >     Owner process ID        00000000    Dev Prot            S:RWPL,O:RWPL,G:R,W
> >     Reference count                0    Default buffer size                 512
> >     Allocation class              10
>
> But:
>
> $ mount/nowrite/override=id    $10$dka400: test
> %MOUNT-F-MEDOFL, medium is offline
>
> I Have tried this with different setups, including plugging the 50 pin
> ribbon cable directly into the KZPEA card's internal 50 pin connector.
>
> QUESTIONS:
>
> If the controller is able to find out the identity of this device,
> notice it isn't wide etc:
>
>         -does this mean that the connection (cable, adaptor etc) is fully
> functional ? or are there primitive exchanges (such as getting
> information from device) which can be done with a deffective connection
> but when you try to do real access to the device , it fails ?
>
>         -the card is set to have auto termination. Would an unterminated  CD
> ROM drive at the other end of the cable cause this behaviour ? I'd have
> to search for the specs of this drive to see if it is terminated or not.

JF if you got this far, with the results you've posted then I'd assume
the Sony drive is broken.
Hans