[CentOS] Intel ICH10R on CentOS 5.4

[William Warren]

On 6/9/2010 8:27 PM, John R Pierce wrote:
> William Warren wrote:
>    
>> jsut put the bios into sata or ata mode and not raid..then the raid
>> functionality is zero..:
>>      
> even when its enabled, the raid functionaliy of the ICH??R chips is
> zero.  :)     "enabling RAID" in the BIOS simply sets a bit in the chip
> thats write-once (once its set, it can't be reset short of a full chip
> reset), this does two things.
>
>      A) it changes the PCI DEVICE_ID of the chip so it requires different
> drivers,
>      B) it tells the BIOS and drivers that they should implement Intel
> Matrix aka fake raid rather than standard SATA JBOD.
>
> thats *ALL* it does in hardware.  nada else.
>
>
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>    
i understand that..but he doesn't want the fakeriad of the bios 
emulation or bit flip or whatever active so my comments about how to 
avoid it are accurate and stand as accurate.