big backup file-Solved

[Colin Law]

2010/1/16 Karl F. Larsen <klarsen1 at gmail.com>:
>...
>        As I understand it rsync stores a file somewhere in the
> backup that tells it what it has, and so when you do the next
> backup it only adds new files. This might be quite big.
>

No it does not store anything extra anywhere.  It does it by
mathematical magic.  Google for rsync algorithm if you want to know
more.

Colin