SCSI Disk not found

HOLLOW, CHRISTOPHER christopher.hollow at cgi.com
Thu Dec 4 11:48:59 PST 2003


I've worked with ProLiant servers and with FreeBSD RAID, but not on the 
same box.  Basically, as I understand it, you should use the Compaq 
SmartStart Array Configuration Utility to create the RAID1 (mirror) 
array.   The array controller will then present the RAID set as one 
logical drive to the OS.  The total logical size will be the size of one 
(1) of the drives.  Using a Promise RAID controller, dmesg listed the 
device ar0 for the logical RAID set and the devices ad4 and ad6 for the 
low-level RAID components.  The ar0 partition is what is carved up and 
installed to.  Hope this helps...

Chris


Michael E. Mercer wrote:

>The drive that can not be found is a 
>Western Digital WD Enterprise 4360
>4.3 GB Wide-Ultra SCSI
>
>I have removed the second SCSI controller card (PCI) and
> the Seagate SCSI Hard Drive.
>
>All that remains is the On-motherboard scsi controller and the
>western digital SCSI drive.
>
>The Compaq Configuration Utility sees the drive.
>But FreeBSD does not.
>
>Any ideas? Is this Drive supported?
>
>Thanks
>Michael E Mercer
>
>On Wed, 2003-12-03 at 22:06, Riley J. McIntire wrote:
>  
>
>>>From: Michael E. Mercer
>>>      
>>>
>>>Ok, its the "System Configuration Utility" supplied by Compaq not the
>>>BIOS.
>>>      
>>>
>>>Michael
>>>      
>>>
>>Just to jump in...after reading the thread you probably have hardware
>>raid 0 (mirroring) on the system using 2 controllers and 2 drives--the
>>Compaq cu should tell you what's going on. The OS will see the 2
>>mirrored drives as one. I'd be careful about changing scsi IDs until you
>>determine what's going on.
>>
>>hth,
>>
>>Riley
>>
>>
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>  
>

-- 
Christopher Hollow - Technical Consultant
Infrastructure & Technology Support
1 Dundas St. West, 11th floor, Toronto, ON
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