SCSI2SD in a DEC 3000/300 - T-ERR-SCSI A

[Jerry Weiss]

On 9/26/21 4:04 PM, Alexander Jacocks via cctalk wrote:
>> On Sep 26, 2021, at 10:03 AM, Bill Degnan via cctalk <cctalk at classiccmp.org> wrote:
>>
>> I was either sacrifice a data drive to make it a backup of the primary or
>> find a like drive first, get the system stable and then upgrade.  I have a
>> 3000 too here if you want to work together to troubleshoot yours
>>
>> Bill
>>
>>> On Sun, Sep 26, 2021, 9:46 AM Zane Healy via cctalk <cctalk at classiccmp.org>
>>> wrote:
>>>
>>>> On Sep 26, 2021, at 12:22 AM, Alexander Jacocks via cctalk <
>>>> cctalk at classiccmp.org> wrote:
>>>>
>>>> I’ve got a DEC 3000/300 system that has some SCSI drives with aging
>>> bearings installed. I’d like to be able to start to migrate some of my
>>> systems, like this, to flash media, of some kind, as even my large
>>> repository of SCSI disks is starting to dry up.
>>>> Here is my SRM level info:
>>>>    DEC 3000 - M300
>>>> Digital Equipment Corporation
>>>>     VPP PAL V5.56-80800101/OSF PAL V1.45-80800201 - Built on 30-SEP-1996
>>> 09:18:31.84
>>>> As far as I have read, the SCSI2SD v6 2020 should be compatible with
>>> several varieties of DEC hardware, from the VAXen to the Alphas. However, I
>>> can’t seem to get anywhere useful with mine. I have the virtual disks
>>> configured as follows:
>>>>>>> sh dev
>>>> BOOTDEV      ADDR      DEVTYPE    NUMBYTES     RM/FX    WP    DEVNAM
>>>   REV
>>>> -------      ----      -------    --------     -----    --    ------
>>>   ---
>>>> ESA0         08-00-2B-3F-4C-9A , TENBT
>>>> DKA100       A/1/0     DISK         9.54GB      FX            RZ40
>>>    6.0
>>>> DKA300       A/3/0     DISK         9.54GB      FX            RZ40
>>>    6.0
>>>> DKA400       A/4/0     RODISK     305.01MB      RM      WP    RRD45
>>>     6.0
>>>> All three disks are from the SCSI2SD. I have attempted to make the
>>> inquiry strings match the originals, as closely as possible. In the SCSI2SD
>>> utility, I have the following config:
>>>> General page: all defaults, termination off (I have tried parity, scsi2
>>> mode, and setting SCSI speed to sync, with no improvement)
>>>> Device 1: enabled, ID 1, device Hard Drive, start sector 0, sector size
>>> 512, sector count 18636800, vendor “DEC     ", product “RZ40     “,
>>> revision “ 6.0”, serial number <random string>
>>>> Device 2: enabled, ID 3, device Hard Drive, start sector 18636800,
>>> sector size 512, sector count 18636800, vendor “DEC     ", product “RZ40
>>> “, revision “ 6.0”, serial number <random string + 1>
>>>> Device 3: enabled, ID 4, device CDROM, start sector 37273600, sector
>>> size 2048, sector count 148933, vendor “DEC     ", product “RRD45    “,
>>> revision “ 6.0”, serial number <random string + 2>
>>>> I’ve also tried booting from a virtual CDROM, only, with no luck there,
>>> either. In all cases, I get the following from SRM:
>>>>>>> test scsi
>>>> T-STS-SCSI A - Data Trans test
>>>> ? T-ERR-SCSI A - Data Trans test - nondma/sync inq size miscompare
>>>> T-ERR-SCSI A - id = 1 lun = 0
>>>>
>>>> ? T-ERR-SCSI A - Data Trans test - nondma/sync inq size miscompare
>>>> T-ERR-SCSI A - id = 3 lun = 0
>>>>
>>>> ? T-ERR-SCSI A - Data Trans test - nondma/sync inq size miscompare
>>>> T-ERR-SCSI A - id = 4 lun = 0
>>>> ?? 002      SCSI 0x0008
>>>>
>>>>
>>>> 84 FAIL
>>>>
>>>> Does anyone have an idea what might be causing this? Has anyone tried a
>>> v6 SCSI2SD in a DEC 3000?
>>>> Thanks!
>>>> - Alex
>>> I picked up a couple v6 boards for my AlphaStation 200 4/233, but haven’t
>>> tried to use them yet.
>>>
>>> Are you using the onboard SCSI, or a SCSI board?  I’m ‘going to assume
>>> you’ve tried a different cable, and to get it working from actual physical
>>> drives?  Have you tried turning the termination on, on the board?  Is your
>>> SCSI Bus Terminated?
>>>
>>> You actually have RZ40’s in the system?  I’m asking as I’m not actually
>>> familiar with that drive type, at least it’s not one I remember off the top
>>> fo my head.  I usually use RZ29’s.  On my v5.2 board on my VAXstation
>>> 4000/90 I think I went with basic 8GB drives, without a vendor string or
>>> product string.
> I have a Quantum XP2160 and a Seagate 1050 in my 3000. Both function, but have significant bearing whine, and I have no idea how many hours are on each. So, I know my scsi subsystem and termination are fine. I’m going to pull a scsi2sd v5.2 from a Quadra 700 and try that, to see if I get the same errors.
>
> I used the RZ40 as the inquiry string, and matched the sector count, to make SRM happy. I have real RZ25s and RZ26es, but they are quite small. Most of my modern scsi disks are 10 and 15k U320s, and not a good choice for heat constrained enclosures like the 3000. Not to mention that 300gb is just silly for Digital UNIX.
>
> - Alex

Difference in length of data sent or expected for SCSI-1 vs SCSI-2 inq 
commands?

   Jerry