🚀 go-pugleaf

In article <1992Nov20.173551.42574@urz.unibas.ch> gaspar@urz.unibas.ch writes:
>In article <1992Nov19.090920.8363@csd.uwe.ac.uk>, r_voisey@garlic.uwe.ac.uk (R Voisey) writes:
>> In article <1992Nov17.180524.42564@urz.unibas.ch>, gaspar@urz.unibas.ch writes:
>> 
>> |> > bigger than 50Megs you have to swap a link (to change sector size I think).
>> |>                                / ^^^^^^^^^^^
>> |> Could someone tell me what this means? 
>> 
>> |> 9 heads and when I enter that parameter I get a message that I might! 
>> |> swap link 3 or something like that.
>> 
>[ text deleted]
>   So, if you want to swap link 3 you have to take the lid off your
>> machine, and find J3. 
>[text deleted
>
>> 
>> Hope that helps
>
>Yes it helped! Thanks. The jumper wasn't called J3 though. There are two 
>jumpers next to the cables that go to the drive and they are calld PL8 and PL9.
>I tried out every combination of setting and it worked with BOTH jumpers 
>changed. Does someone (maybe from Acorn?) know if that's ok?
>
>The problem wasn't solved completely because the drive should have 88 Meg
>capacity. After formatting with 17 Sect/Track, 9 Heads and 1024 Cylinders
>(The controller cannot cope with more that 1024, I think. The drive has 1073
>cylinders), I had about 40 Meg free on the drive. Where is the rest???
>
>I tried to format the drive with 32 Sect/Track and it worked. But this is
>probably not advisable to do.
>Any ideas?
>
>> Bob
>laci

Most specs for hard drives intended for PC's seem to specify 17 sectors.
While trying to get an old Seagate drive to format under RO2 giving 17
sectors I got only half the capacity. Later with the formatter that comes
with RO3.1 I formatted it to 32 sectors (all other params the same) and
got the full capacity and it works fine.

As far as the hardware of the drive is concerned I don't think it matters
how many sectors there are per track. I *think* it's dependant on what
the software expects.

-- 
Sim. ----------------------------------------------------------- Simeon Walker,
----------------------------------------- Department of Electrical Engineering,
D.S.Walker@bradford.ac.uk -------------------- University of Bradford, England.