Re: Huge Data sets, simple queries

[Michael Stone <mstone+postgres(at)mathom(dot)us>]

On Sun, Jan 29, 2006 at 12:25:23PM +0100, hubert depesz lubaczewski wrote:
> hmm .. do i understand correctly that you're suggesting that using
> raid 10 and/or hardware raid adapter might hurt disc subsystem
> performance? could you elaborate on the reasons, please?

I think it's been fairly well beaten to death that the low-end hardware 
raid adapters have lousy performance. It's not until you get into the 
range of battery-backed disk caches with 512M+ and multiple I/O channels 
that hardware raid becomes competitive with software raid.

Mike Stone