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From: Stef Walter <stef-list@memberwebs.com>
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To: John Baldwin <jhb@freebsd.org>
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Date: Sat, 31 May 2008 18:08:00 +0000 (UTC)
Cc: freebsd-hackers@freebsd.org
Subject: Re: RAID status issues with Intel MatrixRAID ataraid
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John Baldwin wrote:
>> Physical Disks:
>> Port Drive Model      Serial #          Size     Type/Status(Vol ID)
>> 0    WDC WD5000ABYS-0 WD-WCAPW5637184   465.8GB  Member Disk(0)
>> 1    ST3500320NS      5QM09E6F          465.8GB  Error Occurred(0)
>> 2    WDC WD5000ABYS-0 WD-WCAPW5548822   465.8GB  Member Disk(1)
>> 3    ST3500320NS      5QM0991D          465.8GB  Member Disk(1)
>> Press <CTRL-I> to enter Configuration Utility...........
>>
>>
>>
>> RELEVANT SNIPPET FROM DMESG:
>>
>> ar0: 476937MB <Intel MatrixRAID RAID1> status: READY
>> ar0: disk0 READY (master) using ad4 at ata2-master
>> ar0: disk1 READY (mirror) using ad6 at ata3-master
> 
> Err, you have two RAID volumes, one degraded, and one ok.  ar0 is apparently 
> the one that is ok (drives 2 and 3).  What is more odd is that it isn't 
> seeing a RAID config at all for ad0 and ad2 (drives 0 and 1).

Nope, ar1 (with ad8 and ad10) is the second RAID, both are marked as
READY even though one is degraded in the BIOS.

ar0: 476937MB <Intel MatrixRAID RAID1> status: READY
ar0: disk0 READY (master) using ad4 at ata2-master
ar0: disk1 READY (mirror) using ad6 at ata3-master
ar1: 476937MB <Intel MatrixRAID RAID1> status: READY
ar1: disk0 READY (master) using ad8 at ata4-master
ar1: disk1 READY (mirror) using ad10 at ata5-master

In any case, this is water under the bridge for me now.

Cheers,
Stef Walter