For a speed test /dev/zero isn't the best item to use as the hardware
compression will show how good it can be.   I would test on files that
aren't in the OS cache and will have representative level of
compression.
                                -Jason

On Fri, 2009-01-02 at 20:14 +0100, Jesper Krogh wrote:
> Sergio Belkin wrote:
> > Hi,
> > 
> > I have an IBM Type 8765-1UXD LTO3, is working but not at its best 
> > performance.
> > As wikipedia its Max Speed (MB/s) should be Max Speed 80 MB/s and the
> > actual is about 10 Mb/s.
> > 
> > Could be some miscofiguration of bacula? What can I twak? I tried not
> > using compression but not was improved.
> 
> 
> Are you using spooling?
> 
> Whats the speed measure using:
> 
> dd if=/dev/zero of=/dev/nst0 bs=1M count=1000
> 
-- 
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Jason A. Kates (jason AT kates DOT org) 
Fax:    208-975-1514
Phone:  212-400-1670 x2
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