Ralf Gross schrieb:
> > The transferrate depends on the type of backup and if spooling was
> > used.
> 
> Update:
> 
> With dd and different block sizes I get 100-115 MB/s (bs=64k to
> 256k). This was only a simple test with the new LTO-4 drive. Changing
> the bs to more than 128 didn't result in better performance. 
> 
> A simple test with tar was much slower (~60 MB/s, didn't touch the
> bs).
> 
> I didn't test bacula with other bs than the default, but I get ~77
> MB/s for a backup of a file on the sd (fd/sd on the same server) where
> the LTO-4 drive is connected to (Attribute Spooling enabled, just one
> 20 GB file).
> 
> I'm not sure why backup to LTO-4 isn't faster than the backup to
> LTO-4, but the result is not that bad.

This should be: I'm not sure why backup to LTO-4 isn't faster than backup to 
LTO-3...

Ralf

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