Re: RF74 Disk

On 06/05/2025 05:52, Andrew Ball wrote:
> I have looked at the 'RF Series Integrated Storage Element User Guide'
> and was able to find a geometry for most of the DSSI disks. RF36 and
> RF74 though mentioned different number of sectors per track for
> different 'bands', which makes some sense given that outer tracks
> would be longer. Since I'm making virtual disks for open-simh, I'm
> probably just looking for a total number of sectors (especially for
> the RF74). Could someone point me in the right direction?
>
> Thanks,
>   -Andy Ball.

I can't find detailed technical specs for either the RF36 or the RF74 
but the 1993-MAY-10 Customer Update does include articles for both the 
RF36 and the RF74:

https://decuserve.org/anon/htnotes/dir?f1=INDUSTRY_NEWS&f2=611.*

It's a bit light on nitty gritty technical details but it does give 
(rough) capacities so you could work backwards and come up with a number 
of sectors. A few other drives are listed so you could do the same for 
those and see if you get close to published sector numbers for other drives?

Antonio


-- 
Antonio Carlini
[email protected]