Mailinglist Archive: opensuse (2920 mails)

["Kai Ponte" <kai@xxxxxxxxxxxxxxxx>]

On Mon, December 31, 2007 5:16 pm, Carlos E. R. wrote:
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> The Monday 2007-12-31 at 04:16 -0500, Aaron Kulkis wrote:
>
> > >  But I believe plain dar is. I found it to slow, though. I wish
> > > rsync could
> > >  do a little compresion...
> >
> > Compression is good until you get an erroneous bit.
> >
> > then it makes your life miserable.
>
> Did you ever use the old PCBackup for Dos, from PC Tools (Central
> Point
> Software)? I have backups made in 80 5¼ floppies and still
> recoverable.
> They are compressed, yes, but they also contain recovery data to
> repair
> read errors. In fact, they do have sectors with errors, and the
> software
> is able to get the whole good data out of them, about twenty years
> later.
> And it was so fast I barely had time to label one floppy before it
> asked
> for the next one.
>
> We don't have such a tool in Linux. The technology is out there
> somewhere,
> but I don't know of a tool that can record (and do it fast) removable
> media compressed with recovery data designed to bypass the common
> types of
> media errors. Think of a DVD with a .tgz archive... a scratch, an
> error,
> and the entire archive is useless.
>
> I'm not talking of state of the art maximum compression: only some
> compression.

That is an excellent observation.

The other items mentioned are all either command-line (ugh!) or scripted.

This seems like an area ripe for exploration.



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