----- "Andreas Kuntzagk" <andreas.kuntzagk@xxxxxxxxxxxxx> escreveu:
> > > So to reduce load I'd like to have a script that:
> > >
> > > identifies changed files only (using md5?)
> > > copies them
> > > and compresses them
> > >
> >
> > Well, I'm using "rsync --link-dest" to do this. This article
> > "http://www.rootprompt.org/article.php3?article=8976"; had the
> > principle but didn't use "--link-dest".
>
> Well, but rsync doesn't compress, does it?
> So I would need to compress first and then rsync - meaning I need to
> keep the compressed files around twice.
Well, rsync can "compress on the wire" (the data travels compressed), but
rsync will do the first two items: identifies changed files and copy them.
The compress to tape part will need to be done after that :) On the other
hand, with the prices of tapes and HD today, I had chose to buy two servers
with a lot of HD on each, put each one on a different building, and make a
backups on them.
Antonio.
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