[mythtv-users] question about RAID

[chris@cpr.homelinux.net]

On Mon, Jan 09, 2006 at 08:36:14PM -0000, Johnathon Meichtry wrote:
>  but between them you will probably have 
> three reads with two probably being on the same disk therefore RAID0 only 
> giving you a marginal performance improvement without even taking into 
> account disk 1 and disk 2 being on the same controller (i.e. IDE PATA master 
> and slave) and the resultant IO wait (not to mention the bottleneck on the 
> PCI bus).

The various bits of documentations for software RAID on Linux all 
agree that you should never put two drives on one controller or else 
performance will often be much worse than if you weren't using RAID 
at all.

-- 
"When fascism comes to America, it will be wrapped in the flag and 
carrying the cross." - Sinclair Lewis (1935)