OS drives on own controller vs being on same controller wi..

Can anyone comment on whether there would be any real advantage of
having the OS drives (mirror) attached to say the motherboard
controller (SataII), vs being on the same card as say a 3ware 8 port
PCI-x or pcie controller card (along with the raid 5 data array).

IE: when i send backup data to this raid5 array, will it perform
slower if the OS drives are on the same controller?

I cant imagine that it would be that aweful.

I've seen the raid5 benches with HD Tach coming in around 90-120 MB/s
on the raid5 before (cant remember exactly), so would having them over
on the motherboard increase these figures?

Cheers

"markm75" <markm75c.DeleteThis@msn.com> wrote in message news:1183142952.674307.200530@m36g2000hse.googlegroups.com
> Can anyone comment on whether there would be any real advantage of
> having the OS drives (mirror) attached to say the motherboard
> controller (SataII), vs being on the same card as say a 3ware 8 port
> PCI-x or pcie controller card (along with the raid 5 data array).
>
> IE: when i send backup data to this raid5 array, will it perform
> slower if the OS drives are on the same controller?
>
> I cant imagine that it would be that aweful.
>
> I've seen the raid5 benches with HD Tach coming in around 90-120 MB/s
> on the raid5 before (cant remember exactly), so would having them over
> on the motherboard increase these figures?

You already know the answer to that.
Either that or you didn't understand a hoot about the answers to your
earlier PCIe vs PCI-X question.

Just another of your troll attempts, MarkM?

>
> Cheers