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Andrea Soracchi wrote:
> There are little GB of mpeg....
>
> If I try to set compression off and backup 3 directory (all 555MB, no
> multimedia files) I get :
>
> VolBytes: 488,242,591
>
>
> The same backup with compression on is:
>
> VolBytes: 488,242,591
>
> The result is equal!!!
>
> Why? Compression is on or off?
We're talking hardware compression here, right? In that case, the
solution is simple, at least as far as I understand it (somebody correct
me if I'm wrong): Bacula doesn't know. Your drive does the compression,
Bacula only sends it the data uncompressed and that's why the values
don't change (it sends the very same amount of data, regardless of
whether your drive's hardware compression is on or off).
Now, if you enabled software comprression, things would be different. In
that case, Bacula would be doing the compression and would know the
'before' and 'after' sizes of the data.
Greetings,
Michel
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