SCSI RAID on FreeBSD 7.0, where is the array?

[ghostcorps at gmail.com]

Hi Derek,

As mentioned in my post, I have configured the Adaptec BIOS 
(SCSIselect/HostRAID) to create a RAID0 array.

The GENERIC Kernel natively-uses the 'ahd' adapter for this card, 
http://www.freebsd.org/cgi/man.cgi?query=ahd&sektion=4&manpath=FreeBSD+7.0-RELEASE

dmesg does not post any errors, it recognised the card as ahd0, and 
states that da0 & da1 are on that bus. I can not post the dmesg as the 
NIC adapter needs to be patched once the OS is installed. I could find a 
USB key and copy it over if you like, but there are no errors to consider.

Regards



Derek Ragona wrote:
> At 07:56 AM 7/30/2008, ghostcorps at gmail.com wrote:
>> Hi all,
>>
>>
>> I am fighting the following hardware:
>>
>> MB: ASUS p5b-plus (NON vista edition)
>> Cpu: Core 2 duo 4600
>> SCSI Card: Adaptec 39320 (Unused Dell OEM bought from ebay)
>> HDDs: 2xSeagate Cheetah 73.4 GB Ultra320 SCSI (posibly Dell OEM)
>>
>> Nb. The MB does not support PCI-X, but is backwards compatible to a 
>> standard PCI slot. On recommendations I have limited the throughput 
>> on the channels to 160mb.
>>
>> If you think any other pieces relevant let me know.
>>
>>
>> I think this is probably just an issue with my not knowing wtf I'm 
>> doing, but to be optimistic lets assume the ahd module worked as 
>> there are no errors in dmesg; which device do I install to? I can not 
>> see see ahd0 in fdisk.
>>
>> There are alot of posts over the years reporting trouble with the 
>> Dell(Adaptec/Seagate) combiniation. The funny thing is that I am 
>> having none of these troubles; There are no panics, no dumps and no 
>> lengthy pauses. It all seems fine, until I try to select the disk to 
>> install to and I only have da0 or da1.
>>
>>
>>
>> Thanks for your time
>
> Have you defined an array?
>
> If you create the array in the adaptec BIOS you will see one large 
> hard disk in FreeBSD.  If you do not define an array in the adaptec 
> BIOS you will see the individual SCSI drives as da0, da1, etc.
>
> The GENERIC kernel has all the typical SCSI and RAID adapters compiled 
> in, so look at the dmesg output when you boot FreeBSD.
>
>         -Derek
>
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