Ubuntu's performance : how to speed up ?

[Eamonn Sullivan]

On Thu, 17 Feb 2005 17:23:27 +0100, Jérôme Tytgat
<jerome.tytgat at asterion.fr> wrote:
> I can confirm and more !!!
> 
> on my mobo (Asus P4C800-E Deluxe), I have one promise chipset
> which can handle RAID-0, RAID-1, RAID-0+1 and MultiRAID and
> one intel chipset ICH5R which can handle RAID-0 and RAID-1.
> 
> Using RAID-0 on the intel ICH5R have several interesting points :
> - speed of RAID-0 stripping
> - low cpu utilization (3% against 10-20% for the promise)
> - more BUS bandwith as the intel chipset is directly on
> the southbridge and the promise chipset is on the PCI
> bus (you gain twice the BW of PCI BUS which is around
> 120-133 Mbits/s)
> - No PCI sharing with other PCI cards like Network card.

And also twice the risk, right? If one of the disks go bad in a RAID-0
setup, you lose all the data. Regular backups would be a must. Or am I
mistaking this for one of the other RAID-* setups?

-Eamonn