[CentOS] Slow performance

[Jim Perrin]

On 4/30/07, Ashley M. Kirchner <ashley at pcraft.com> wrote:

>     I'm posting this to both the Fedora as well as the CentOS lists in
> hopes that somewhere, someone can help me figure out what's going on.  I
> have a dual Xeon 3GHz server that's performing rather slow when it comes
> to disk activities.
>
>     The machine is configured with a single 160 GiB OS drive (with
> CentOS 5.0) and 4x500 GiB drives setup in a RAID-5 configuration.  All
> drives are setup for 3.0 GiB SATA link, and the motherboard also
> supports that.  Looking in dmesg when the system comes up, I see that
> reflected as well:

What raid controller are you using? Have you read the disk tuning
guide on the wiki (http://wiki.centos.org/HowTos/Disk_Optimization)?
Also note that raid 5 is not the fastest option around.  If you're
really looking for speed, you should look at using raid 10.



-- 
During times of universal deceit, telling the truth becomes a revolutionary act.
George Orwell