Which motherboard for RAID in AMD64?

[Pav Lucistnik]

David O'Brien píše v pá 17. 06. 2005 v 01:18 -0700:
> On Tue, Jun 07, 2005 at 05:49:28PM +0200, Adriaan de Groot wrote:
> > On Tuesday 07 June 2005 17:32, you wrote:
> > > On Sun, 5 Jun 2005, Adriaan de Groot wrote:
> > > > Via KT800's embedded RAID which shows up as atapci1: <VIA 6420 SATA150
> > > > controller> works as a RAID controller; configure the RAID array before
> > > > installation and use ar0 as the device to install FreeBSD to.
> > > >
> > > > Promise 20378 RAID which shows up as atapci0: <Promise PDC20378 SATA150
> > > > controller> works as a RAID controller; same deal.
> > > >
> > > > My K8V has both of these controllers,
> > >
> > > I am a little confused. Do you have one of those onboard and the second as
> > > a pci card?
> > 
> > Lots of motherboards have two RAID controllers on board. See, the VIA KT800 
> > chipset has one and some vendors add a second, like a promise, for added 
> > value. 4 SATA connectors on the motherboard, on two different controllers.
> 
> Why do so many motherboard manufacturers do that?  Is the SiI or Promise
> RAID controller ready better than the VIA one?

Marketing advantage. Boards with four SATA connectors (2 controllers)
sell better than boards with two SATA connectors (single controller).

-- 
Pav Lucistnik <pav at oook.cz>
              <pav at FreeBSD.org>

If God is perfect, why did He create discontinuous functions?
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