[DGD] minimum sector size tweaking

Raymond Jennings shentino at gmail.com
Mon Apr 29 12:26:16 CEST 2013


I presume that it depends on the host platform because it depends on data
type sizes of the header's members?

So far I've found:

dataspace and control block headers at the beginning of a normal sector
signature and dumpfile headers at the head and tail of the "boot" sector

Did I miss anything?

In the meantime I've noticed respectable savings in disk usage.

On Mon, Apr 29, 2013 at 3:10 AM, Felix A. Croes <felix at dworkin.nl> wrote:

> Raymond Jennings <shentino at gmail.com> wrote:
>
> > I've been tinkering with the minimum sector size setting in config.c and
> > bumped it down to 128 for now.
> >
> > I'm aware of some header information that is confined to the first
> sector,
> > which is why I didn't shrink it much beyond that.
> >
> > How small is safe?  I'm thinking 512 is a lower bound for efficiency
> > reasons, but is it actually dangerous to go below that?
>
> It depends on the host platform.  You can use binary search to find out.
>
> Regards,
> Felix Croes
> ____________________________________________
> https://mail.dworkin.nl/mailman/listinfo/dgd
>



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