Re: Apple IIe and Profile hard disk setup?

[apple2pd@garp3.icaen.uiowa.edu (ground.ecn AppleII Librarian)]

In article <8k9uls$4i6$1@merope.saaf.se>,
Paul Schlyter <pausch@saafNOSPAM.se> wrote:
>In article <processoroverclocked-0807001800350001@dialup-napanet-206-81-102-22.napanet.net>,
>Jon Bettencourt <processoroverclocked@33mhz.cjb.net> wrote:
> 
> 
>> DOS 3.3 can only access disks up to 400K (and that's with a whole lotta
>> modification).
...
> 
>> You need ProDOS to access the hard disk.
> 
>Well, that depends.  Some harddisks were actually accessible from DOS.
>Due to the limited size of DOS disks, the harddisk was partitioned into
>multiple DOS "volumes", which were distinguished by adding the "V"
>(volume) parameter to DOS commands accessing the hard disk.
> 
>Perhaps it was only the Corvus Constellation which implemented this
>though?  That harddisk was 5 MBytes, and was divided into 35 or 36
>DOS "volumes" of 140K each.
> 

The FCP Sider harddrives worked like this too. You could allocate small
(140K) and large (400K) DOS disks, which were accessed by the V parameter.
Both of my Siders died several years ago so I am recalling from faulty
memory and am unable to verify by hands-on testing. :-)


-- 

 --Steve  (apple2pd@ground.ecn.uiowa.edu)