Performance with two drives on the same SATA controller.

Is it correct that a SATA controller has the same limitation as a PATA
controller with two drives? I.e., the controller can only handle data flow
to one drive at a time?
So, for example, creating a RAID 0 array on two SATA drives on the same
controller will impact the performance of the array? [vs creating the array
with two drives on different controllers].

Thanks

"fj" <jelenko2.DeleteThis@hotmail.com> wrote in message news:AXHDg.605167$Fs1.476878@bgtnsc05-news.ops.worldnet.att.net
> Is it correct

So where does it say that?

> that a SATA controller has the same limitation as a PATA controller

No, not in theory at least.
In practice however your SATA controller may just be a PATA controller
with pata->sata converters.

> with two drives?

On the same channel, you mean.

> I.e., the controller can only handle data flow to one drive at a time?

Nope.

> So, for example, creating a RAID 0 array on two SATA drives
> on the same controller will impact the performance of the array?

Nope.
And even if it is a PATA->SATA type controller you may put them
on different channels, just like you do on a true PATA controller.

> [vs creating the array with two drives on different controllers].

They still share the PCI bus.

>
> Thanks