The files are copied to tape files created by the bacula. Which are
compressed:
Filset:
....
Include {Options {Signature = MD5; compression = GZIP5}
.....
What we have are two sets of backup:
1.-copied to hard disk files Bacula
2.-these same files copy them to tape.
To confirm you have everything I said, I will copy to tape uncompressed
files. Really so certified the 417 GB is the maximum compression that allows
.
The quality of the tapes, I have no way of knowing. The model I bought is
brand Manufacturer: HP. The specific model is:
"HEWLETT-PACKARD C7973AN LTO" are packages of 20 LTO-3 tapes.
2011/1/18 Phil Stracchino <ala...@metrocast.net>
> On 01/18/11 02:24, Jose Antonio Rodriguez Martin wrote:
> > Nothing, it still does not copy more than 417 GB ...
>
> If you're getting 417GB onto a 400GB tape, you're getting compression.
> You're just not getting MUCH of it.
>
> What kind of data are you backing up? Not all data compresses well.
> English text compresses about 4:1 on average. Binaries, typically not
> much at all. Digital images, digital video, zip archives, MP3 audio?
> Forget it. Databases? Sometimes you get lucky and get 10%-15%
> compression, sometimes they don't compress at all.
>
>
> --
> Phil Stracchino, CDK#2 DoD#299792458 ICBM: 43.5607, -71.355
> ala...@caerllewys.net ala...@metrocast.net p...@co.ordinate.org
> Renaissance Man, Unix ronin, Perl hacker, Free Stater
> It's not the years, it's the mileage.
>
>
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--
Jose Antonio Rodriguez Martin
CGI, S.A.
Teléfono: 607372465
skype: jarm-cgi
e-mail: jarodrig...@cgi.es
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