Re: Seagate ST255N [20 Meg SCSI] Wanted

[Charles <spammeister12345@aol.com>]

In article <080720042021406291%jonrelay@napanet.net>, 
jonrelay@napanet.net says...
> In article <MPG.1b54f788b2c41246989686@news.verizon.net>, sca
> <no@spam.com> wrote:
> 
> > What is it that PREVENTS us from using larger 
> > volumes?  Why can't we hack GS/OS or ProDOS to use more of the hard 
> > drives? Why is it practically impossible?
> > 
> > Charles
> 
> I don't know about GS/OS, but I know ProDOS keeps track of everything
> in terms of blocks, and the fields for storing block numbers are all
> 16-bit integers, allowing only 65536 blocks, or 32768K, or 32MB maximum
> for anything. Trying to increase the size of a block is only going to
> send every existing Apple II program crashing down on us.
> 
> (In addition, ProDOS stores the size of a file in a 24-bit integer,
> limiting the total size of a file to only 16MB.)
> 
> 
So, what you're saying is that it's practically impossible to change the 
routines to, say branch off the normal logic and include more logic for 
larger drives?  Or something like that?

Charles