I'm interested in what parameters for what scheduler you're using. Did you test 
using synthetic benchmarks or with the production configuration?

Regards, Mark

-----Ursprüngliche Nachricht-----
Von: Ralf Gross [mailto:Ralf-Lists AT ralfgross DOT de] 
Gesendet: Freitag, 24. Juli 2009 09:18
An: bacula-users AT lists.sourceforge DOT net
Betreff: Re: [Bacula-users] Bacula spool on SSD -- solid state driveperformance 
testing?

...

I simply use a 2 disk (SATA) software RAID0 for each of our 3 LTO-4
drives.  The server has 12 disk bays, so there is enouth space for
more disks if needed. I usually run only one job per drive, but with
changing some linux io scheduler paramters, I even get decent read
performance while a second job is writing to the same RAID0 device.

Ralf


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