🚀 go-pugleaf

In article <1992Nov17.180524.42564@urz.unibas.ch>, gaspar@urz.unibas.ch writes:
 > In article <1992Nov17.105656.22343@csd.uwe.ac.uk>, r_voisey@csd.uwe.ac.uk (R Voisey) writes:
 > > In article <1992Nov16.103443.42555@urz.unibas.ch> gaspar@urz.unibas.ch writes:
 > >>As far as I can remember, the biggest harddisc size you could use with a
 > >>Archimedes 410/1 was around 50 Meg. under RISC OS 2.
 > > 
 > > You can use most drives up to around 80Megs quite easily, though for drives
 > > bigger than 50Megs you have to swap a link (to change sector size I think).
 >                                / ^^^^^^^^^^^
 > Could someone tell me what this means? 
 > I bought a second hand 80Meg Harddisk quite cheap. The problem is that it has
 > 9 heads and when I enter that parameter I get a message that I might! 
 > swap link 3 or something like that.
 > I'd be very happy if someone could enlighten me on that subject.
 > 
 > 
 > > Cheers
 > > 
 > > Bob
 > > -- 
 > >   Robert J. Voisey  :  r_voisey@csd.uwe.ac.uk
 > >          -- Probug Software Developments --
 > > 162 Staplehill Rd, Fishponds, Bristol, Avon, England
 > -- 
 > 
 > THanks
 >           laci

I have used (and given up) two 80mb Imprims MFM drives on my 410/1. I had to 
switch a link inside the machine to select 9 heads. (I don't remember the exact 
link, but I may find it out). But what I want to tell is that these drives has
not worked well on my Arc. They both started to make an annoying 'click' sound 
after some months in use. It appeard more and more frequently. Sometimes when I 
tried to access them, the machine just hang, waiting for the drive to come up or 
something. This way I lost a lot of files, because the machine was hanging when I 
saved data. It seems that it is problems between the Arc and the drive, because
the drives has worked well on PCs after being used inside the Arc. I am now using
a 120mb Conner IDE drive with ICS IDE-podule/software which works perfectly
(even with RO3.10!)

A problem could be the number of sectors. To be able to read/write to the drive,
I had to format it with 32 sectors/track on the Arc. On the PC I used 17 (which
is the right size). Does ADFS use I kind of soft-sectoring? It looks like that,
because standard 40mb Seagate drives, has to be formatted with 32 sectors/track,
and they work well.

-Trygve