OpenEuphoria

Re: cluster size

• Posted by Dan Moyer <DANIELMOYER at prodigy.net> Jan 28, 2002
• 445 views

Kat,

Oh, ok, I forgot or didn't realize dos was limited to 2gig, & didn't find
win32lib v0.15c on my drive, & GetDiskFreeSpace wasn't in the later
versions, but maybe there is something similar (or I missed it).  I'll keep
looking, thanks.

Dan

----- Original Message -----
From: "Kat" <gertie at PELL.NET>
To: "EUforum" <EUforum at topica.com>
Sent: Monday, January 28, 2002 9:08 PM
Subject: Re: cluster size


>
> On 28 Jan 2002, at 20:19, Dan Moyer wrote:
>
> >
> > Thanks Kat,
> >
> > But now I'm running into a problem:  when I modify Craig Gilbert's
> > disk_free_space() to return cluster_size (took me an embarrassingly long
> > time to figure out it was just bytes_per_sector * sectors_per_cluster!),
I
> > get a return of 32K, for both a 3gig drive and a logical drive of 10gig,
> > which actually seem to have 4 & 8k cluster sizes respectively.  Since
FAT16 will
> > format for 32K per cluster for anything above 1 or 2 gig (I think?), I'm
> > wondering if maybe Craig's function is not correct for FAT32?  His demo
does
> > discern that my drives are FAT32, but the free space sizes computed are
maxed at
> > 2gig, not what they really are, which seems to further suggest not
compatible
> > with FAT32.
> >
> > Any thoughts?
>
> Yes, Craig's utility is dos. As you know, dos is limited to the 2Gig size.
The
> other file i mentioned uses the windows api thru win32lib, and should
return
> good data on the big drives. YMMV tho. What i didn't check is if the newer
> win32libs have the same function as the 0.15c version.
>
> Kat
>
> > Dan Moyer
> >
> >
> > ----- Original Message -----
> > From: "Kat" <gertie at PELL.NET>
> > To: "EUforum" <EUforum at topica.com>
> > Sent: Sunday, January 27, 2002 10:05 PM
> > Subject: Re: cluster size
> >
> >
> > > On 27 Jan 2002, at 20:52, Dan Moyer wrote:
> > >
> > > >
> > > > Sorry, I didn't explain in enough detail.   Although I was speaking
in
> > > > particular about two different drives, the second one *is*
partitioned,
> > > > which from Vern & Elliott's explanations now seems to be the cause
of
> > the
> > > > different minimum cluster sizes.
> > >
> > > Ok, sorry, i didn't understand.
> > >
> > > > But independent of the cause, & unrelated to how to *change* the
minimum
> > > > cluster size, what I need to be able to do is *programmatically*
find
> > out
> > > > *what* the minimum cluster size on any specified drive in any users
> > system
> > > > is.
> > > >
> > > > Reason is, I'm trying to finish up a "what all's taking up so much
space
> > on my
> > > > drive!" utility I had started once before & couldn't get to work
quite
> > right,
> > > > which now does work except for knowing the actual minimum cluster
size
> > for any
> > > > drive.
> > >
> > > Ok, look to the end of function disk_free_space() in Craig Gilbert's
> > diskutil.e
> > > in http://www.rapideuphoria.com/diskutil.zip It's dos. Also, look in
> > function
> > > GetDiskFreeSpace() in win32lib v0.15c.
> > >
> > > Kat
> > >
> > >
>
>
>