I disabled the Compression and my speed rate boosted from 8.2 MB/s to 40.8
MB/s but I'm still using Bacula encryption.
On Mon, Jul 25, 2011 at 10:14 PM, James Harper <
james.har...@bendigoit.com.au> wrote:
> > 2011/7/25 Rickifer Barros <rickiferbar...@gmail.com>:
> > > Hello Guys...
> > >
> > > This weekend I did a backup with a size of 41.92 GB that took 1 hour
> and 24
> > > minutes with a rate of 8.27 MB/s.
> > >
> > > My Bacula Server is installed in a IBM server connected in a Tape
> Drive LTO4
> > > (120 MB/s) via SAS connection (3 Gb/s).
> > >
> > > I'm using Encryption and Compression Gzip6.
> >
> > Disable software compression. The tape drive will compress much faster
> > than the client.
> >
>
> If you can find compressible patterns in the encrypted data stream then
> you are not properly encrypting it. The only option would be to compress
> before encryption which means you can't use the compression function in
> the tape drive unless the tape drive also does the encryption (some do).
>
> Use a lower GZIP compression level to see if it gets you better speed
> without sacrificing too much performance... I suspect the speed hit is
> going to be the encryption though.
>
> James
>
>
------------------------------------------------------------------------------
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