On Sat, 12 Sep 1998 14:25:24 -0700 (PDT), Dr. Bill Studenmund wrote:
> On Sat, 12 Sep 1998, Mark de Jong wrote:
> > I was wondering if there's someone who fully understands how to _optimally_
> > partition a hard drive so that no cylinders/sectors are wasted. The
> > engineer/nerd/geek part of me abhors the thought that my hard drive isn't
> > being used optimally. <grin>
> 
> I think there are papers on how ffs works in the documentation section (in
> src/share/doc) would tell you more. But usually I've found you end up
> wasting around 16k or so, so I've never worried too much.

If you allocate for a ffs partition a number of sectors exactly a
multiple of cylinder group size, you won't waste any block.  It's
usually N * 16 * sectors/cylinder (= N * 16 * sectors/track * track/cylinder).

Cheers,

Ken