[Info-vax] MicrovaxStation 3100 CDROM

[David Wade]

On 01/06/2022 18:27, vaxinf at gmail.com wrote:
> Hi Dave,
> 
> you'll need a scsi-cd/dvd-drive that supports 512 Blocks / I/O. There is 
> a jumper on the backside that switches the mode between 2048 and 512.
> 
> I think thatyou'll find some references in the VMS FAQ .
> 
> Eberhard


Isn't the "block size" only important if you want to boot from the drive?

There are 50-pin SCSI DVD drives that have this jumper. e.g. this toshiba:-

https://www.ebay.co.uk/itm/131914831012

and I use a similar drive in a few SUN/DEC/IBM systems..

Dave



> Am 01.06.2022 um 19:13 schrieb Dave Barter via Info-vax:
>> I have a 3100 unit that I need to load software onto. At the moment it 
>> only has VMS 7.1 and a TK50 tape drive. I don't have access to another 
>> drive. Maybe a dumb question, but can I purchase a cheap external SCSI 
>> CDROM drive and use this to move files across? The 3100 has a SCSI 
>> connector at the back, it's probably DEC proprietary but I'm hoping 
>> there is a connector out there that might work.
>>
>> Other option is to file transfer via the serial console but I'm not 
>> sure if VMS comes with anything like Kermit out of the box.
>>
>> Thanks
>> Dave
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> 
>