[Coco] Maximizing floppy storage (was: format memory (was) Gotek floppy emulator)

L. Curtis Boyle curtisboyle at sasktel.net
Tue Feb 16 16:51:08 EST 2016


Yes, Bill and I did all of our backups at work using a custom FORMAT command that did 20 256 byte sectors per track (800K per 3.5” DDDS disk). Didn’t notice any less reliability, and did this for years.

L. Curtis Boyle
curtisboyle at sasktel.net



> On Feb 16, 2016, at 3:47 PM, tim lindner <tlindner at macmess.org> wrote:
> 
> On Tue, Feb 16, 2016 at 1:32 PM, Robert Gault <robert.gault at att.net> wrote:
>> The data area for the format command has several buffers and many data
>> values. It shouldn't be a surprise that the total data area is about 11,000
>> bytes.
> 
> Has anyone ever tried to increase the number of sector per track? You
> would have to setup a test rig and check for increased error rates.
> 
> Since more than half of the track is used for house keeping. I wonder
> how many more sectors could safety be added to each track?
> 
> I'm sure the originators of the format tried to maximize the sector
> count, but maybe they were too conservative.
> 
> 
> -- 
> --
> tim lindner
> 
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