Non-512-byte sector drive cloning?

[Roe Peterson]

>> 
>> What, actually, is the blocksize?  1024 or ?
> 
> 576 or 2304.

36 bit, right.  Sorry -:)

And serious congratulations on the 40s.  I worked on decsystem 20s back in the day;  very nice machines.  

In fact, an early Unix project was to (essentially) duplicate the OPR system, including the COMND(?) jsys, so our operators didn't have to learn a new set of procedures. (This was an actuarial/pension mgmt company with 3 Tops-20 systems)