> By any chance, do you have some reference or some tests that talk about the
> fact that RAID5 with less than 5 disks is not performing?

Just this list.  But it's easy to test yourself; run bonnie++ and compare the 
performance of seeks and random writes (which PG does a lot of) vs. a plain 
single disk.


Josh Berkus
Aglio Database Solutions
San Francisco

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