[Simh] Using an ODS-2 physical SCSI drive with simh

Peter Allan petermallan at gmail.com
Sun Jun 28 06:38:58 EDT 2015


I know that you can use a physical SCSI drive with simh by using the RAW
device. However, before doing so, I want to check something.

The drive that I have is a 9GB SCSI drive that was formatted and written to
on an Alpha workstation that runs VMS 7.2-1. The disk structure on the
drive is ODS-2.

My question is - will using the drive as a RAW drive in simh let me access
the existing file structure on the disk? I want to use the vax (microVAX
3900) simulator.

Is it safe to write to the drive or might that mangle the file structure?

Are there "gotchas" to watch out for, such as needing to tell simh the
exact size of the drive?

All comments gratefully received.

Peter Allan
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