Which motherboard for RAID in AMD64?

[Jarrod Martin]

Adriaan de Groot wrote:

>On Friday 17 June 2005 10:18, David O'Brien wrote:
>  
>
>>On Tue, Jun 07, 2005 at 05:49:28PM +0200, Adriaan de Groot wrote:
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>>>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?
>>    
>>
no... it isn't.  you can read most of the motherboard reviews and learn 
that the performance increases are slim to none for the secondary SATA 
controller.  in fact performance on the included SATA controller is 
normally better (but by a negligible amount).

>
><speculation>Two is better than one. Iterate that a few times and you've got 
>four. I don't immediately see the advantage of the additional connectors 
>since you can't combine the 4 drives you might connect into a single array, 
>only as two separate arrays. Hey, but you could GEOM across controllers. I 
>haven't tried any performance measurements on the one controller or the other 
>-- I'm pleased that I can move the array from one controller to another and 
>that it works, that's enough for me.</speculation>
>
><apropos>Sil (e.g. the Sil3114 on the nForce4-based Asus A8N-SLI) isn't 
>supported beyond "generic ata", right? I've not seen it mentioned in the 
>hardware notes for ages.</apropos>
>
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