{Spam?} Re: SCSI RAID on FreeBSD 7.0, where is the array?

[ghostcorps at gmail.com]

Thanks for the quick reply!

I created the array in the Adaptec BIOS and confirmed it with an XP 
installer disk, which gave me the option to install to the array as I 
had named it.


 I have to apologise for not having the actual dmesg handy but 
identifies the disks much like the example below, but with Seagate disks.

 It does not identify any striping or make any differentiation between 
the discs other than the target id.
.

da0 at ahd0 bus 0 target 2 lun 0
da0: <MAXTOR ATLAS10K4_36WLS DFV0> Fixed Direct Access SCSI-3 device 
da0: 320.000MB/s transfers (160.000MHz, offset 127, 16bit), Tagged Queueing Enabled
da0: 35074MB (71833096 512 byte sectors: 255H 63S/T 4471C)
da1 at ahd0 bus 0 target 4 lun 0
da1: <MAXTOR ATLAS10K4_36WLS DFV0> Fixed Direct Access SCSI-3 device 
da1: 320.000MB/s transfers (160.000MHz, offset 127, 16bit), Tagged Queueing Enabled
da1: 35074MB (71833096 512 byte sectors: 255H 63S/T 4471C)



Regards



Derek Ragona wrote:
> At 07:14 PM 7/30/2008, ghostcorps at gmail.com wrote:
>> 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>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
>
> What does dmesg show for da0 and da1?
>
> Did you actually create the array in the Adaptec RAID BIOS?  If you 
> did, with a stripped array I'd expect dmesg to only report da0 as the 
> stripped compendium of both disks.
>
>         -Derek
>
>
>
>
>
>> Derek Ragona wrote:
>>> At 07:56 AM 7/30/2008, 
>>> <mailto:ghostcorps at gmail.com>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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>>
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>