Re: ADTPro with fast Disk II reads released

[schmidtd <schmidtd@my-deja.com>]

On Aug 27, 10:00 pm, Polymorph <polymorp...@hotmail.com> wrote:
> On Aug 28, 12:44 am, schmidtd <schmi...@my-deja.com> wrote:
>
> > On Aug 27, 6:00 am, Polymorph <mike.a.steph...@gmail.com> wrote:> Well I can confirm my previous answer to question 1) - I re-did the test
> > > using a fresh disk and the disk was reported as <I/O ERROR> with 1600
> > > blocks before the format, and "BLANK" with 280 blocks after the format.
> > > So it is looking quite possible that it is the Superdrive causing problems.
>
> > The format code I borrowed sends a SmartPort format request to do the
> > low-level media formatting, and I suspect that's working fine.  I then
> > grab the device characteristics (specifically, the block count) as
> > displayed and use that to write the block bitmap on the newly
> > formatted image.  So it's definitely my fault for writing the wrong
> > bitmap, but there's some peculiarity going on with the drive.  Do the
> > slot/drive numbers change any before and after, by chance?
>
> Nope. I did not notice anything strange happening with slot/drive
> numbers. Basically I listed the volumes prior to formatting and got <I/
> O ERROR> 1600 for slot 5 drive 1; did the format on slot 5 drive 1;
> and then relisted the volumes after formatting and got "BLANK" (the
> default volume name) with 280 blocks for slot 5 drive 1.
>
> > Also... what's the model number of a Superdrive?  I see from this
> > page:http://www.vintagemacworld.com/drives.html
> > that there's a "Superdrive controller," but none of the drives
> > (Unidisk 3.5", Apple 3.5" external, etc.) are actually named
> > "Superdrive."  Which one is yours?
>
> As mentioned in posts below, mine is one of the "Apple FDHD External
> (G7287)"  variety (has "Superdrive" written on the underside).
(Rummages through closet...) Hey, I have one of those!

Alas, I was hoping for an easy testcase.  But I went from <I/O ERROR>
1600 5/1 to BLANK 1600 5/1 in one smooth format operation.  I counted
79 head steps after the initial seek; it couldn't be happier.  Anyone
else have one to try?