Dell CERC SATA 2S question

[Roger. O. Svenning]

Jonathan Reeder wrote:

>I just got a Dell PowerEdge SC420 (or something like that) with the CERC
>SATA 2S RAID.  When the server boots, the Adaptec utility tells me that I
>have one array configured, a RAID 1 with 2 drives.  However, when I launch
>the 5.3 installer and go to Allocate Disk Space options, it sees two drives
>rather than the single RAID array.  The two drives it sees are ad4 and ad6.
>I get an error when I select either of them, saying:
>  
>
RAID on your SATA controller are not supported by FreeBSD.
If supported you'd see the array as ar0 along with the ad(4|6) entries.

>"A geometry of 310019/16/63 for ad(4|6) is incorrect.  Using a more likely
>geometry..."
>
>  
>
This is quite normal

>Any thoughts on how I can get FreeBSD to see my SATA array as an array
>rather than as two separate drives?
>  
>
Get a supported SATA controller.
I'm using the HighPoint Rocketraid 15xx ones, tho there seem to be some 
speed issues as I get very low transfer speeds on the arrays.

Roger O. Svenning